CT quantification of pulmonary vessels in lung aging

AIM

To evaluate the effect of aging on pulmonary vessels based on computed tomography (CT) quantification and analyse the correlation between quantitative pulmonary vascular volume and pulmonary function during aging.

MATERIALS AND METHODS

A total of 330 healthy adult volunteers, including 161 men (53 aged 20-39 years, 61 aged 40-59 years, and 47 aged ≥60 years) and 169 women (53 aged 20-39 years, 63 aged 40-59 years, and 53 aged ≥60 years) were recruited in this study. AVIEW software was used to quantitatively measure pulmonary vascular volume, including pulmonary total blood vessel volume (TBV) and small blood vessel volume with a cross-sectional area of <5 mm2 (BV5). Pulmonary vascular volume parameters were standardised using the ratio of vascular volume to the body surface area (BSA; TBV/BSA and BV5/BSA). Subsequently, the effect of aging on the pulmonary vessels was analysed.

RESULTS

The pulmonary vascular volume parameters TBV/BSA and BV5/BSA of the whole lung, right lung, and left lung decreased significantly with increasing age (p<0.05). Additionally, TBV/BSA and BV5/BSA of the whole lung were higher in men than in women. The declining trend of pulmonary vascular volume was consistent in men and women and increased with age.

CONCLUSIONS

The pulmonary vascular volume parameters, TBV/BSA and BV5/BSA, decreased with age and were weakly positively correlated with pulmonary function.

Hyperon Polarization along the Beam Direction Relative to the Second and Third Harmonic Event Planes in Isobar Collisions at sqrt[s_{NN}]=200 GeV

The polarization of Λ and Λ[over ¯] hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collisions at sqrt[s_{NN}]=200  GeV. This is the first experimental evidence of the hyperon polarization by the triangular flow originating from the initial density fluctuations. The amplitudes of the sine modulation for the second and third harmonic results are comparable in magnitude, increase from central to peripheral collisions, and show a mild p_{T} dependence. The azimuthal angle dependence of the polarization follows the vorticity pattern expected due to elliptic and triangular anisotropic flow, and qualitatively disagrees with most hydrodynamic model calculations based on thermal vorticity and shear induced contributions. The model results based on one of existing implementations of the shear contribution lead to a correct azimuthal angle dependence, but predict centrality and p_{T} dependence that still disagree with experimental measurements. Thus, our results provide stringent constraints on the thermal vorticity and shear-induced contributions to hyperon polarization. Comparison to previous measurements at RHIC and the LHC for the second-order harmonic results shows little dependence on the collision system size and collision energy.

The Role of Radiation Therapy for Metastatic Cervical Cancer

PURPOSE/OBJECTIVE(S)

Survival rates for women with metastatic cervical cancer (CC) are low, with limited management options. Radiation therapy (RT) for metastatic disease has led to prolonged survival in other malignancies, however, the data are scarce in CC. Herein, we evaluated the effect of RT for metastatic CC.

MATERIALS/METHODS

A total of 58 patients with metastatic CC between September 2019 and January 2023 were retrospectively analyzed. All the patients were treated with platinum-based chemotherapy combined with targeted therapy or immunotherapy followed with or without RT (NRT). The recent efficacy, survival status and prognostic factors were analyzed statistically.

RESULTS

Objective response rate (ORR) was 63.6% with one complete and twenty partial responses in RT group (n = 33) and 40.0% with two complete and eight partial responses in NRT group (n = 25), respectively (p = 0.074). Disease control rate (DCR) of the RT and NRT groups were 79.4% vs 80.0%, respectively (p = 0.861). Median follow-up time was 17 months (3-39months). In RT group, 11(33.3%) patients experienced local regional or distant failure and 9 (27.3%) patients were dead. In NRT group, 15(60%) patients had progression and 8 (32%) patients dead. There was no significant difference between the two groups in overall survival (OS); however, RT group displayed superior progression-free survival (PFS) (1-year OS: 72.7% vs. 68.0%, p = 0.460; 1-year PFS: 66.7% vs. 40.0%, p = 0.039). The multivariate analysis showed that RT, immunotherapy, lymph node metastasis only relevant predictor of superior PFS but not OS. In subgroup analysis, patients treated with RT appeared to have a better PFS in some specific cohorts, such as age>45 years (72.0% vs 36.4% P = 0.015), squamous carcinoma histology (71.0% vs 40.9% P = 0.017), metastatic at diagnosis (75.0% vs 47.6% P = 0.012), non-targeted therapy (72.4% vs 43.8% P = 0.040). No significant increase in treatment-related toxicity was observed in the RT group compared with the NRT group.

CONCLUSION

RT provided superior PFS in metastatic CC patients compared to NRT, and well tolerated. Moreover, RT, immunotherapy, lymph node metastasis only were independent significant prognostic factors for PFS. Subgroup analysis showed that combination of RT and chemotherapy obtained favorable PFS in metastatic CC patients with age>45 years, squamous carcinoma histology, metastatic at diagnosis, non-targeted therapy. Studies with a larger sample size and longer follow-up are warranted.

Can AI-generated art stimulate the sustainability of intangible cultural heritage? A quantitative research on cultural and creative products of New Year Prints generated by AI

The transformation of social development modes has led to profound changes in the pattern of intangible cultural heritage, while simultaneously posing significant challenges to its preservation. The rapid development of artificial intelligence (AI) technology has brought new development opportunities in various research fields. This study intends, by constructing and evaluating a theoretical model, to investigate whether AI-generated cultural and creative products can promote the sustainability of intangible cultural heritage. The central focus of this research is to measure the effectiveness of AI technologies in promoting the sustainability of intangible cultural heritage. The context of the research design is rooted in the attention, interest, search, action, and share (AISAS) model, incorporating theories of perceived value and cultural identity, to forecast the long-term viability of AI-generated cultural and creative products in the promotion of intangible cultural heritage. This research was conducted in Tianjin, China and carried out using quantitative methods, a questionnaire survey, and the accidental sampling method, taking a sample of 291 participants for analysis. The results show that 1) the attraction of and interest and participation in AI-generated Yangliuqing New Year Print cultural and creative products have a positive effect on perceived value; 2) the purchase and sharing of these products have a positive impact on cultural identity; 3) the perceived value has a positive impact on cultural identity; and 4) cultural identity has a positive impact on the sustainability of intangible cultural heritage. This study contributes to the theoretical development and practical application of the AISAS model and offers valuable insights into the future development trajectory of intangible cultural heritage, thereby promoting its sustainability. The limitations of this study are its small sample size and geographical restrictions. In future studies, the sample size will be expanded and will include more regions for data analysis.

Dielectrophoresis-assisted removal of Cd and Cu heavy metal ions by using Chlorella microalgae

A novel dielectrophoresis (DEP)-assisted device for the bioremediation of heavy metal ions by using Chlorella microalgae is presented in this paper. To generate the DEP forces, pairs of electrode mesh were inserted in the DEP-assisted device. By applying DC electric field via the electrodes, the inhomogeneous electric field gradient is induced and the strongest non-uniform electric field exists near the mesh cross-corner. After the adsorption of Cd and Cu heavy metal ions by Chlorella, the Chlorella chain were trapped along the vicinity of the electrode mesh. Then, the effects of Chlorella concentration on the adsorption of heavy metal ions, and the applied voltage and electrode mesh size on the removal of Chlorella are conducted. In the co-existing Cd and Cu solutions, the individual adsorption ratio of Cd and Cu reaches as high as approximately 96% and 98%, respectively, showing excellent bioremediation capability of multiple heavy metal ions in wastewater. By adjusting the applied electric voltage and the mesh size, the Chlorella adsorbed with Cd and Cu are captured by negative DC-DEP effects and the removal ratio of Chlorella reach an average of 97%, providing a method for the removal of multiple heavy metal ions in wastewater by using Chlorella microalgae.

Tunable magnetophoretic method for distinguishing and separating wear debris particles in an Fe-PDMS-based microfluidic chip

Wear debris analysis provides an early warning of mechanical transmission system aging and wear fault diagnosis, which has been widely used in machine health monitoring. The ability to detect and distinguish the ferromagnetic and nonmagnetic debris in oil is becoming an effective way to assess the health status of machinery. In this work, an Fe-poly(dimethylsiloxane) (PDMS)-based magnetophoretic method for the continuous separation of ferromagnetic iron particles by diameter and the isolation of ferromagnetic particles and nonmagnetic particles with similar diameter by type is developed. The particles experience magnetophoretic effects when passing through the vicinity of the Fe-PDMS where the strongest gradient of the magnetic fields exists. By choosing a relatively short distance between the magnet and the sidewall of the horizontal main channel and the length of Fe-PDMS with controlled particles flow rate, the diameter-dependent separation of ferromagnetic iron particles, that is, smaller than 7 µm, in the range of 8-12 µm, and larger than 14 µm, and the isolation of ferromagnetic iron particles and nonmagnetic aluminum particles based on opposite magnetophoretic behaviors by types are demonstrated, providing a potential method for the detection of wear debris particles with a high sensitivity and resolution and the diagnostic of mechanical system.

[Analysis on the trends of incidence and age change for global female breast cancer]

Objective: To analyze the trends of incidence and age change for global female breast cancer in different regions of the world according to the database from Cancer Incidence in Five Continents Time Trends (CI5plus) published by the International Association of Cancer Registries (IACR). Methods: The recorded annual female breast cancer (ICD-10: C50) incidence data and corresponding population at-risk data (1998-2012) were extracted from CI5plus published by IACR. The annual change percentage and average annual change percentage (AAPC) were calculated to examine the trends of incidence. The age-standardized mean age at diagnosis and proportion of incidence cases by age were calculated to analyze the relationship between incidence and age. Results: For crude incidence, except in Northern America, all other regions showed an upward trend, with Asia showing the most obvious upward trend (AAPC: 4.1%, 95% CI: 3.9%, 4.3%). For age-standardized incidence, in Asia, Latin America and Europe, the rising trends had slowed down, in Oceania and Africa, the trends began to be stable, and in Northern America, the trend showed a downward trend (APPC: -0.6%; 95% CI: -1.0%, -0.1%). The mean age at diagnosis were increased from 1998 to 2012 in Asia, Latin America, Oceania and Europe, with an annual increase of 0.12 years, 0.09 years, 0.04 years and 0.03 years, respectively. But after age-standardized, only Europe still kept increasing year by year, with an annual increase of 0.02 years, while Northern America showed a decreasing trend, with an annual decrease of about 0.03 years. Conclusions: From 1998 to 2012, the trends of incidence and age change for global female breast cancer vary in different regions of the world, and the global population aging is widespread, which affects the trend of the actual age change. Prevention and control strategies should be targeted at different age groups in different regions.

DC-Dielectrophoretic Manipulation and Isolation of Microplastic Particle-Treated Microalgae Cells in Asymmetric-Orifice-Based Microfluidic Chip

A novel direct-current dielectrophoretic (DC-DEP) method is proposed for the manipulation and isolation of microplastic particle (MP)-treated microalgae cells according to their dielectric properties in a microfluidic chip. The lateral migration and trajectory of the microalgae cells were investigated. To induce stronger DC-DEP effects, a non-homogeneous electric-field gradient was generated by applying the DC electric voltages through triple pairs of asymmetric orifices with three small orifices and one large orifice located on the opposite microchannel wall across the whole channel, leading to the enhanced magnitude of the non-uniform electric-field gradient and effective dielectrophoretic area. The effects of the applied voltage, the polystyrene (PS) adsorption coverage, and thickness on the DC-DEP behaviors and migration were numerically investigated, and it was found that the effect of the PS adsorption thickness of the Chlorella cells on the DC-DEP behaviors can be neglected, but the effect on their trajectory shifts cannot. In this way, the separation of 3 µm and 6 µm Chlorella coated with 100% PS particles and the isolation of the Chlorella cells from those coated with various coverages and thicknesses of PS particles was successfully achieved, providing a promising method for the isolation of microalgae cells and the removal of undesired cells from a target suspension.

[A clinicopathological classification of space-occupying lesions of the orbit in 1 913 patients from 2000 to 2021]

Objective: To investigate the histopathological classification of orbital space-occupying lesions. Methods: This is a retrospective case series study. The clinical and pathological data of 1 913 tissue specimens from 1 913 patients with space-occupying lesions of the orbit which were examined in the Second Affiliated Hospital, Zhejiang University School of Medicine from January 2000 to December 2021 were collected. The mass lesions were classified based on histogenesis, pathological nature and age. Results: There were 913 males (47.7%) and 1 000 females (52.3%). The lesions were benign in 1 489 patients (77.8%) and malignant in 424 patients (22.2%). Based on histogenesis, there were 521 vasculogenic lesions (27.2%), which rancked first, 407 cystoid lesions (21.3%), 277 lymphoproliferative lesions (14.5%), 182 lacrimal gland lesions (9.5%) and 121 inflammatory lesions (6.3%). By pathological nature, there were 1 489 benign lesions, including cavernous hemangioma (275, 14.4%), dermoid cyst (225, 11.8%), other hemangiomas (199, 10.4%), epidermoid cyst (136, 7.1%) and benign mixed tumor of the lacrimal gland (134, 7.0%), and 257 malignant lesions, including lymphoma (210, 11.0%) and sebaceous gland carcinoma (47, 2.5%). The age of all patients ranged from 0 to 90 years, while 247 lesions (12.9%) occurred in patients aged 0 to18 years, 1 270 lesions (66.4%) in patients aged 19 to 59 years, and 396 lesions (20.7%) in patients aged 60 to 90 years. Conclusions: In 22 years, almost 2/3 benign orbital lesions in the Second Affiliated Hospital, Zhejiang University School of Medicine occurred in young and middle-aged patients, and males were fewer than females. The most common benign orbital tumors was cavernous hemangioma, followed by dermoid cyst and epidermoid cyst. And the most common malignant orbital tumor was lymphoma, which occurred more frequently in older patients.

Plant-Based Diet and Risk of Frailty in Older Chinese Adults

OBJECTIVES

This study examined the relationship between the consumption of plant-based diet and frailty in older Chinese adults.

DESIGN

Prospective cohort study.

SETTING

Community-based setting in 22 provinces of China.

PARTICIPANTS

The final sample included data from 3990 older adults from 2011-2014 from the Chinese Longitudinal Healthy Longevity Survey.

MEASUREMENTS

A plant-based diet index (PDI) was calculated based on a qualitative food frequency questionnaire. Frailty was defined using modified Fried criteria. A Generalized Estimating Equation was used to estimate risk ratios (RRs) and 95% confidence intervals (CIs) for frailty. We further performed subgroup analyses stratified by sex and lifestyle factors.

RESULTS

557 cases of frailty were observed. After adjustment for covariates, the RR for frailty of a high PDI was 0.792 (95% CI: 0.644-0.973), relative to a low PDI. During follow-up, compared with respondents with a continually low PDI, the respondents with a continually high PDI had a significantly reduced risk of frailty (RR = 0.683, 95% CI: 0.514-0.908). In further subgroup analysis, a consistently high PDI over time resulted in a significantly reduced risk of frailty for male (RR = 0.591, 95% CI: 0.391-0.893); for never smokers (RR = 0.670, 95% CI: 0.458-0.979); for people who did never consume alcohol (RR = 0.654, 95% CI: 0.454-0.941); and for people with current or former exercise habits (RR = 0.488, 95% CI: 0.313-0.762).

CONCLUSION

Plant-based diet was associated with low risk of frailty in men and in older adults with healthy lifestyle. These findings stress that plant-based diet should be recommended as a dietary strategy to prevent and reduce frailty in older adults; in addition, more dietary interventions along with lifestyle modification should be adopted to promote successful ageing, especially for women.

Preoperative gadoxetic acid-enhanced MRI predicts aggressive pathological features in LI-RADS category 5 hepatocellular carcinoma

AIM

To investigate whether Liver Imaging Reporting and Data System (LI-RADS) imaging features and non-LI-RADS imaging features can predict aggressive pathological features in adult patients with hepatocellular carcinoma (HCC).

MATERIALS AND METHODS

From February 2018 to September 2021, 236 adult patients with cirrhosis or hepatitis B virus infection in which liver cancer was suspected underwent MRI within 1 month before surgery. Significant MRI findings and alpha-fetoprotein (AFP) level predicted high-grade HCC and microvascular invasion (MVI) by univariate and multivariate logistic regression models.

RESULTS

The study included 112 patients with histopathologically confirmed liver cancer (≤5 cm), 35 of whom (31.3%) high-grade HCC and 42 of 112 (37.5%) patients had MVI. Mosaic architecture (odds ratio [OR] = 6.031; 95% confidence interval [CI]: 1.366, 26.626; p=0.018), coronal enhancement (OR=5.878; 95% CI: 1.471, 23.489; p=0.012), and intratumoural vessels (OR=5.278; 95% CI: 1.325, 21.020; p=0.018) were significant independent predictors of high-grade HCC. A non-smooth tumour margin (OR=10.237; 95% CI: 1.547, 67.760; p=0.016), coronal enhancement (OR=3.800; 95% CI: 1.152, 12.531; p=0.028), and peritumoural hypointensity on the hepatobiliary phase (HBP; OR=10.322; 95% CI: 2.733, 38.986; p=0.001) were significant independent predictors of MVI.

CONCLUSION

In high-risk adult patients with single LR-5 HCC (≤5 cm), mosaic architecture, coronal enhancement, and intratumoural vessels are independent predictors of high-grade HCC. Non-smooth tumour margin, coronal enhancement, and peritumoural hypointensity on HBP independently predicted MVI.

POS1050 UPADACITINIB VERSUS ADALIMUMAB ON ROUTINE ASSESSMENT OF PATIENT INDEX DATA 3 (RAPID3) IN PATIENTS WITH PSORIATIC ARTHRITIS

Background

RAPID3 (Routine Assessment of Patient Index Data 3) is a disease activity index that is calculated from 3 patient-reported measures: physical function, pain, and patient global assessment. A fast and convenient tool, RAPID3 can be easily used in clinical practice and is applicable to multiple rheumatic diseases, including psoriatic arthritis (PsA), and was shown to correlate with other clinical composite measures of disease activity1. Here, we assessed the long-term effect of upadacitinib (UPA), an oral JAK inhibitor, and adalimumab (ADA) on RAPID3 scores in patients with PsA via a post hoc analysis from the SELECT-PsA 1 phase 3 trial2,3.

Objectives

To evaluate the impact of treatment with UPA vs ADA on RAPID3 through 56 weeks in SELECT-PsA 1, as well as the association of RAPID3 with other disease measures used in PsA.

Methods

Data are from the double-blind SELECT-PsA 1 trial, in which patients with PsA and an inadequate response or intolerance to ≥1 non-biologic DMARD received UPA 15 mg or 30 mg once daily, ADA 40 mg every other week (wk), or placebo (PBO; switched at wk 24 to either UPA 15 mg or 30 mg). This analysis included data from the UPA 15 mg, ADA, and PBO treatment arms. RAPID3 endpoints were calculated using pain scores, patient’s global assessment of disease activity, and HAQ-DI (each rescaled to 0–10 in this analysis); summed together, RAPID3 scores range from 0 (no disease activity) to 30 (severe activity). Mean change from baseline (BL) in RAPID3 as well as the proportions of patients reporting minimal clinically important differences (MCID) in RAPID3 and RAPID3 remission (≤3), low (LDA, >3 to ≤6), moderate (MDA, >6 to ≤12), and high disease activity (HDA, >12) were assessed through wk 56. Associations between RAPID3 scores and disease activity in psoriatic arthritis (DAPSA) and Minimal Disease Activity (MDA)/Very Low Disease Activity (VLDA) were determined by Mantel-Haenszel chi-square test. All data are as observed.

Results

A total of 1,274 patients (PBO: n=421; UPA 15 mg: n=425; ADA: n=428) were included from SELECT-PsA 1. RAPID3 scores at BL were comparable across all treatment arms, and most patients were in HDA. Patients receiving UPA showed a greater improvement from BL in RAPID3 vs ADA at all visits from wk 16 to wk 56 as well as better responses compared with PBO at all assessments (Figure 1). Similarly, a higher proportion of patients treated with UPA achieved MCID in RAPID3 scores than those on ADA from wk 24 to wk 56. By wk 56, approximately half of patients on either therapy were in RAPID3 remission or LDA, with UPA showing a slight numerical improvement relative to ADA (30/21/31/18% of patients were in remission/LDA/MDA/HDA on UPA vs 28/17/30/25% on ADA). RAPID3 disease categories were strongly associated with DAPSA and MDA/VLDA status at wk 56 across all treatment arms pooled together (Table 1) and for the UPA 15 mg arm alone (nominal P <0.0001 for all associations).

Table 1.

Association of RAPID3 With DAPSA and MDA/VLDA Across All Treatment Arms at Week 56a

RAPID3n (%)Moderate-High [>6]Low [3 - ≤6]Remission [≤3]DAPSA (n=879) Moderate-High [>14]292 (33)33 (4)14 (2) Low [4 - ≤14]154 (18)122 (14)87 (10) Remission [≤4]6 (1)21 (2)150 (17)MDA/VLDA (n=907) Not in MDA410 (45)39 (4)5 (1) MDA but not VLDA63 (7)129 (14)80 (9) VLDA013 (1)168 (19)

aDAPSA vs RAPID3 and MDA/VLDA vs RAPID3 were nominally significant at P <0.0001. Data were pooled across UPA 15 mg, ADA, and PBO to UPA 15 mg groups.

Conclusion

UPA 15 mg treatment led to greater improvements over PBO in RAPID3 scores over 56 wks in patients with PsA, and greater improvements over ADA from wk 16 to 56. The majority of patients achieved MCID in RAPID3 after 12 wks of UPA or ADA, with higher proportions achieving MCID on UPA vs ADA by wk 24. RAPID3 was strongly associated with other joint-focused (DAPSA) or multiple manifestation (MDA/VLDA) composite measures, further supporting the utility of RAPID3 in assessing disease activity in PsA.

References

[1]Coates LC, et al. Arthritis Care Res 2018; 70:1198-1205.

[2]McInnes IB, et al. N Engl J Med 2021; 384:1227-39.

[3]McInnes IB, et al. RMD Open 2021; 7: e001838.

Acknowledgements

AbbVie and the authors thank the patients, study sites, and investigators who participated in these clinical trials. AbbVie funded these studies and participated in the study design, research, analysis, data collection, interpretation of data, reviewing, and approval of the publication. All authors had access to relevant data and participated in the drafting, review, and approval of this publication. No honoraria or payments were made for authorship. Medical writing support was provided by Matthew Eckwahl, PhD, of AbbVie.

Disclosure of Interests

Laura Coates Speakers bureau: AbbVie, Amgen, Biogen, Celgene, Eli Lilly, Galapagos, Gilead, GSK, Janssen, Medac, Novartis, Pfizer and UCB., Consultant of: AbbVie, Amgen, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Eli Lilly, Gilead, Galapagos, Janssen, Moonlake, Novartis, Pfizer and UCB, Grant/research support from: AbbVie, Amgen, Celgene, Eli Lilly, Janssen, Novartis, Pfizer and UCB, Arthur Kavanaugh Consultant of: AbbVie, Amgen, AstraZeneca, BMS, Celgene, Centocor-Janssen, Pfizer, Roche, and UCB., Grant/research support from: AbbVie, Amgen, AstraZeneca, BMS, Celgene, Centocor-Janssen, Pfizer, Roche, and UCB., Erin McDearmon-Blondell Shareholder of: AbbVie, Employee of: AbbVie, Arthur Mandelin Speakers bureau: AbbVie, Pfizer, BMS, and Horizon, Consultant of: Served on advisory board at CVS Caremark, Tianming Gao Shareholder of: AbbVie, Employee of: AbbVie, William Tillett Speakers bureau: AbbVie, Amgen, Celgene, Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Amgen, Celgene, Lilly, Janssen, MSD, Novartis, Pfizer, and UCB

POS1025 COMPARISON OF COMPOSITE INDICES FOR DISEASE ACTIVITY IN PATIENTS WITH PSORIATIC ARTHRITIS TREATED WITH UPADACITINIB: A POST-HOC ANALYSIS FROM SELECT-PsA 1

Background

Achieving low disease activity (LDA) or remission is a main treatment target in PsA. Composite indices used to assess disease activity include Disease Activity index for PsA (DAPSA) and PsA Disease Activity Score (PASDAS), which both have cut points for the states of remission and LDA. In addition, LDA and remission can be assessed by the pure state instrument Minimal Disease Activity (MDA)/Very Low Disease Activity (VLDA).

Objectives

These analyses aim to identify overlap and differences between these composite indices in PsA patients treated with upadacitinib (UPA), a Janus kinase inhibitor, or adalimumab (ADA) in the phase 3 SELECT-PsA 1 trial.

Methods

In SELECT-PsA 1 (phase 3, randomized controlled trial, with long-term extension up to 5 years), patients with moderate to severely active PsA with prior inadequate response or intolerance to ≥1 non-biologic DMARD were randomized to oral UPA at doses of 15 mg or 30 mg (once daily), subcutaneous ADA 40 mg (every other week), or placebo.1 LDA was assessed using MDA (threshold: 5/7 criteria), DAPSA (≤14), PASDAS (≤3.2), and Patient Global Assessment of Disease Activity (PtGA; ≤3).2,3 These post-hoc descriptive analyses include 1-year (cut off: week 56) as observed data from UPA 15 mg and ADA.

Results

In total, 858 patients (UPA 15 mg: n=429; ADA: n=429) were included in these analyses. Patients receiving UPA and ADA were on average 52 years of age, 54% were female, with an average disease duration of approximately 6 years.1 With both UPA and ADA, there was a high degree of overlap in the proportion of patients achieving LDA thresholds in MDA, DAPSA, and PASDAS (Figure 1), with reported PtGA improvements showing a similar trend. Defining LDA according to MDA or respective cut points for DAPSA, PASDAS, or PtGA, the proportion of “non-responders” (ie, patients who did not reach such states) is shown in Figure 2. Of the individual components included in these indices, fewer patients reported low levels of SF-36 Physical Component Summary (SF36-PCS), Patient Assessment of Pain Numeric Rating Scale (Pain NRS), and Health Assessment Questionnaire - Disability Index (HAQ-DI) scores, as well as Tender Joint Count 68 (TJC68), with similar responses observed across all indices.

Conclusion

In this post-hoc analysis from the SELECT-PsA 1 trial, there was a high degree of overlap between patients in LDA across the composite indices, including MDA, DAPSA, and PASDAS, irrespective of treatment with UPA 15 mg or ADA and despite variability in inclusion of certain components in some indices but not others. Across all indices, fewer patients reported low levels of SF36-PCS, Pain NRS, and HAQ-DI scores, and TJC68. These data show that improvements in (subjective) “patient-driven” components were the most challenging to achieve. These data indicate a similar pattern of residual disease activity, or influence by residual damage or external factors, regardless of composite endpoint utilized.

References

[1]McInnes IB et al. N Engl J Med. 2021; 384(13):1227-39

[2]Kerschbaumer et al. Baillieres Best Pract Res Clin Rheumatol. 2018; 32:401-14

[3]Gorlier et al. Ann Rheum Dis. 2019; 78:201-208

Acknowledgements

AbbVie funded these studies and participated in the study design, research, analysis, data collection, interpretation of data, reviewing, and approval of the publication. No honoraria or payments were made for authorship. Medical writing support was provided by Monica R.P. Elmore, PhD of AbbVie.

Disclosure of Interests

Josef S. Smolen Consultant of: AbbVie, BMS, Celgene, Chugai, Eli Lilly, Gilead, Janssen, MSD, Novartis-Sandoz, Pfizer, Roche, Samsung, Sanofi, and UCB, Grant/research support from: AbbVie, BMS, Celgene, Chugai, Eli Lilly, Gilead, Janssen, MSD, Novartis-Sandoz, Pfizer, Roche, Samsung, Sanofi, and UCB, Ennio Lubrano Speakers bureau: AbbVie, Celgene, Galapagos, Janssen, MSD, Novartis, and Pfizer, Consultant of: AbbVie, Celgene, Galapagos, Janssen, MSD, Novartis, and Pfizer, Grant/research support from: AbbVie, Celgene, Galapagos, Janssen, MSD, Novartis, and Pfizer, Mitsumasa Kishimoto Speakers bureau: AbbVie, Amgen-Astellas BioPharma, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Celgene, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, and UCB, Consultant of: AbbVie, Amgen-Astellas BioPharma, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Celgene, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, and UCB, Andra Balanescu Speakers bureau: AbbVie, Amgen, Angellini, Astra-Zeneca, Berlin-Chemie, BMS, MSD, Novartis, Pfizer, Roche, Sandoz, Teva, UCB, and Zentiva, Consultant of: AbbVie, Pfizer, and Ewopharma, Vibeke Strand Consultant of: AbbVie, Amgen, Arena, AstraZeneca, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Celltrion, Eli Lilly, Genentech/Roche, Gilead, GlaxoSmithKline, Ichnos, Inmedix, Janssen, Kiniksa, Merck, Myriad Genetics, Novartis, Pfizer, Regeneron Pharmaceuticals, Inc., Samsung, Sandoz, Sanofi, Setpoint, and UCB, Tianming Gao Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Nancy Vranich Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Ralph Lippe Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., William Tillett Shareholder of: AbbVie Inc., Employee of: AbbVie Inc.

AB0904 Evaluating Numeric Rating Scale Versions of the 3 and 4 Visual Analog Scale (3/4-VAS) Composite Measures in Patients with Active Psoriatic Arthritis from the SELECT-PsA Program

Background

The multifaceted nature of psoriatic arthritis (PsA) can make it challenging to evaluate treatment targets and disease activity. Moreover, most existing assessment tools are time-consuming and not always feasible in routine clinical care, indicating a need for new disease measures that are easy to perform and calculate. Composite measures using 3-visual analog scale (VAS; physician’s global assessment, patient’s global assessment, and skin) or 4-VAS (physician’s global assessment, joints, skin, and pain) have been proposed as simpler alternatives.1 Given potential advantages of numeric rating scales (NRS) over VAS, we here adapted 3/4-VAS for use with NRS components and tested its validity via post hoc analysis of the upadacitinib (UPA) SELECT-PsA program.

Objectives

Evaluate the ability of 3/4-NRS scores to assess treatment response in SELECT-PsA 1 and 2, as well as the correlation of 3/4-NRS with other common disease activity measures.

Methods

Data are from the SELECT-PsA 1 and 2 phase 3 trials in patients with prior inadequate response or intolerance to ≥1 non-biologic DMARD or ≥1 biologic DMARD, respectively. In both trials, patients received once daily UPA 15 mg, UPA 30 mg, or placebo (PBO); SELECT-PsA 1 also included the active comparator adalimumab (ADA) 40 mg every other week (wk). 3-NRS scores were determined using the mean of SAPS questions 1–10, physician’s global assessment of disease activity, and patient’s global assessment of disease activity; 4-NRS scores were determined using the mean of SAPS questions 1–10, physician’s global assessment of disease activity, patient’s assessment of pain, and BASDAI question 3 related to joint pain and swelling. The 3/4-NRS scale ranges from 0 (no disease activity) to 10 (severe activity). 3/4-NRS and cDAPSA (DAPSA without the CRP component) were assessed at all available visits through wk 56. Correlations between 3/4-NRS with PsA disease activity score (PASDAS), routine assessment of patient index data 3 (RAPID3), DAPSA, cDAPSA, and other disease activity measures were determined by nonparametric Spearman rank correlation coefficient for UPA 15 mg patients from both trials and ADA for SELECT-PsA 1. All data are shown as observed; nominal p-values are provided throughout.

Results

A total of 1281 and 423 patients were included from SELECT-PsA 1 and 2, respectively. For both cDAPSA and 3/4-NRS scores, patients receiving UPA 15 mg showed clear numerical improvements compared with PBO at wk 24 in both trials (Table 1). 3/4-NRS scores were highly correlated with RAPID3 and PASDAS measures (r >0.6, P <0.0001) for UPA 15 mg patients at baseline (Figure 1). Moderate correlations were observed between 3/4-NRS and DAPSA/cDAPSA (r = ~0.4, P <0.0001), as well as physical function (HAQ-DI) and quality of life measures (SF-36). Nominally significant but weaker correlations were detected for joints, skin, and other disease activity assessments. Similar overall results were observed for patients receiving ADA.

Table 1.

3/4-NRS and cDAPSA Disease Activity Scores at Week 24 and 56 (As Observed)

SELECT-PsA 1Wk 24Wk 56Mean score [n]PBOUPA 15 mgADAUPA 15 mgADA3-NRS3.7 [370]2.2 [398]2.4 [398]1.8 [372]2.0 [359]4-NRS3.8 [367]2.3 [392]2.6 [395]1.9 [367]2.2 [357]cDAPSA24.0 [372]14.9 [399]16.6 [400]10.2 [372]11.3 [358]SELECT-PsA 2Wk 24Wk 56Mean score [n]PBOUPA 15 mgUPA 15 mg3-NRS4.7 [172]2.9 [190]2.4 [164]4-NRS4.9 [170]3.1 [188]2.7 [162]cDAPSA37.1 [172]21.6 [190]15.3 [166]

3/4-NRS ranges from 0–10; cDAPSA ranges from 0–154. Lower scores indicate decreased disease activity.

Conclusion

3/4-NRS was able to successfully discriminate between PBO and therapeutic groups in SELECT-PsA 1 and 2. 3/4-NRS scores correlated well with other clinical and patient reported outcome measures, including those focused on joints (DAPSA) or multiple manifestations (PASDAS), supporting 3/4-NRS as a viable and easy to use tool in daily clinical practice.

References

[1]Tillett W, et al. J Rheumatol 2021; 201675.

Acknowledgements

AbbVie and the authors thank the patients, study sites, and investigators who participated in these clinical trials. AbbVie funded these studies and participated in the study design, research, analysis, data collection, interpretation of data, reviewing, and approval of the publication. All authors had access to relevant data and participated in the drafting, review, and approval of this publication. No honoraria or payments were made for authorship. Medical writing support was provided by Matthew Eckwahl, PhD, of AbbVie.

Disclosure of Interests

William Tillett Speakers bureau: AbbVie, Amgen, Celgene, Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Amgen, Celgene, Lilly, Janssen, MSD, Novartis, Pfizer, and UCB., Laura Coates Speakers bureau: AbbVie, Amgen, Biogen, BMS, Boehringer Ingelheim, Celgene, Galapagos, Gilead, GSK, Janssen, Lilly, Medac, Novartis, Pfizer, Serac, and UCB., Consultant of: AbbVie, Amgen, Biogen, BMS, Boehringer Ingelheim, Celgene, Galapagos, Gilead, GSK, Janssen, Lilly, Medac, Novartis, Pfizer, Serac, and UCB., Mitsumasa Kishimoto Consultant of: AbbVie, Amgen-Astellas BioPharma, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Celgene, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, Teijin Pharma, and UCB Pharma., Arathi Setty Shareholder of: AbbVie, Employee of: AbbVie, Tianming Gao Shareholder of: AbbVie, Employee of: AbbVie, Ralph Lippe Shareholder of: AbbVie, Employee of: AbbVie, Philip Helliwell Paid instructor for: Educational services: Abbvie, Amgen, Novartis, Janssen, Consultant of: Eli Lilly

POS0934 EFFICACY OF UPADACITINIB ON PSORIATIC ARTHRITIS WITH AXIAL INVOLVEMENT DEFINED BY INVESTIGATOR ASSESSMENT AND PRO-BASED CRITERIA: RESULTS FROM TWO PHASE 3 STUDIES

Background

Patients with PsA and axial involvement have higher disease activity and greater reductions in quality of life;1 however, there are no accepted criteria for identifying axial involvement in PsA.

Objectives

The objective of this post-hoc analysis is to assess the efficacy of upadacitinib (UPA), a Janus kinase inhibitor, on axial symptoms in patients with active PsA and axial involvement defined by investigator assessment and PRO-based criteria from two phase 3 SELECT trials.2,3

Methods

Patients with active PsA (≥3 swollen joints and ≥3 tender joints) and prior inadequate response or intolerance to ≥1 non-biologic (SELECT-PsA 1) or ≥1 biologic (SELECT-PsA 2) DMARD were randomly assigned to once daily oral UPA 15 mg or 30 mg, placebo (PBO), or every other week subcutaneous adalimumab (ADA) 40 mg (SELECT-PsA 1 only).2,3 At baseline, axial involvement in PsA was determined by investigator assessment based on the totality of clinical information, such as duration and character of back pain, age of onset, and previous imaging. In addition to investigator assessment, PRO-based criteria for axial involvement (BASDAI ≥4 and BASDAI Question 2 ≥4 at baseline) were applied for this analysis to identify patients with active disease. Efficacy in the sub-group of patients defined using both investigator assessment and PRO-based criteria was evaluated at week 24 for UPA 15 mg vs PBO and ADA (SELECT-PsA 1 only). Data were analyzed using mixed-effect model repeated measures (MMRM) or non-responder imputation (NRI), with nominal P-values shown.

Results

Based on investigator assessment alone, 31.3% (n=534/1704) of patients in SELECT-PsA 1 and 34.2% (n=219/641) in SELECT-PsA 2 were defined as having axial involvement. When both investigator assessment and PRO-based criteria were applied, 23.1% (n=393/1704) of patients in SELECT-PsA 1, or 73.6% (n=393/534) of those defined using investigator assessment alone, and 27.5% (n=176/641) in SELECT-PsA 2, or 80.4% (n=176/219) using investigator assessment alone, met the combined criteria for axial involvement. In both studies, UPA 15 mg showed significantly greater clinical responses vs PBO at week 24 across all endpoints assessed (Figure 1). In SELECT-PsA 1, UPA showed numerically greater responses than ADA at week 24 across all BASDAI and Ankylosing Spondylitis Disease Activity Score (ASDAS) endpoints. The proportion of patients achieving ASDAS clinically important improvement (CII) at week 24 was significantly greater with UPA vs ADA based on nominal P-value.

Conclusion

Patients with active PsA and axial involvement defined by both investigator assessment and PRO-based criteria demonstrated statistically greater clinical responses related to their axial involvement with UPA 15 mg compared to PBO, and consistently numerically higher responses compared to ADA, at week 24 in the SELECT-PsA trials. Findings from this post-hoc analysis are consistent with previous data based on investigator assessment alone.4

References

[1]Mease PJ et al. J Rheumatol. 2018; 45(10):1389-96

[2]McInnes IB et al. N Engl J Med. 2021; 384(13):1227-39

[3]Mease PJ et al. Ann Rheum Dis. 2020; 80(3):312-20

[4]Deodhar A et al. Arthritis Rheumatol. 2020; 72(Suppl 10)

Acknowledgements

AbbVie funded these studies and participated in the study design, research, analysis, data collection, interpretation of data, reviewing, and approval of the publication. No honoraria or payments were made for authorship. Medical writing support was provided by Monica R.P. Elmore, PhD of AbbVie.

Disclosure of Interests

Xenofon Baraliakos Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Chugai, Eli Lilly, Galapagos, Gilead, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Chugai, Eli Lilly, Galapagos, Gilead, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Bristol-Myers Squibb, Celgene, Chugai, Eli Lilly, Galapagos, Gilead, MSD, Novartis, Pfizer, and UCB, R Ranza Speakers bureau: AbbVie, Janssen, Novartis, and Pfizer, Consultant of: AbbVie, Janssen, Novartis, and Pfizer, Andrew Ostor Speakers bureau: AbbVie, Bristol-Myers Squibb, Eli Lilly, Gilead, MSD, Novartis, Pfizer, and Roche, Consultant of: AbbVie, Bristol-Myers Squibb, Eli Lilly, Gilead, MSD, Novartis, Pfizer, and Roche, francesco ciccia Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, MSD, Novartis, Pfizer, Janssen, Sanofi, Sandoz, Galapagos, Sobi, and UCB, Grant/research support from: AbbVie, Celgene, Pfizer, Roche, and UCB, Laura Coates Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, MSD, Novartis, Pfizer, Janssen, Sanofi, Sandoz, Galapagos, Sobi, and UCB, Grant/research support from: AbbVie, Celgene, Pfizer, Roche, and UCB, Simona Rednic Consultant of: AbbVie, Boehringer Ingelheim, Eli Lilly, MSD, Novartis, and Pfizer, Grant/research support from: AbbVie, Boehringer Ingelheim, Eli Lilly, MSD, Novartis, Pfizer, and UCB, Jessica A. Walsh Consultant of: AbbVie, Amgen, Eli Lilly, Merck, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Amgen, Eli Lilly, Merck, Novartis, Pfizer, and UCB, Tianming Gao Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Apinya Lertratanakul Shareholder of: Formerly of AbbVie, Employee of: Former employee of AbbVie, In-Ho Song Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Fabiana Ganz Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Kevin Douglas Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Atul Deodhar Consultant of: AbbVie, Amgen, Aurinia, BMS, Boehringer Ingelheim, GSK, Janssen, Lilly, MoonLake, Novartis, Pfizer and UCB, Grant/research support from: AbbVie, GSK, Lilly, Novartis, Pfizer and UCB

Novel insights into heat tolerance using metabolomic and high-throughput sequencing analysis in dairy cows rumen fluid

Heat stress influences rumen fermentative processes with effects on the physiology and production of dairy cows. However, the underlying relationship between rumen microbiota and its associated metabolism with heat tolerance in cows have not been extensively described yet. Therefore, the main objective of this study was to investigate differential heat resistance in Holstein cows using rumen bacterial and metabolome analyses. We performed both principal component analysis and membership function analysis to select seven heat-tolerant (HT) and seven heat-sensitive (HS) cows. Under heat stress conditions, the HT cows had a significantly (P < 0.05) higher propionic acid content than the HS cows; while measures of the respiratory rate, acetic, and butyric acid in the HT cows were significantly (P < 0.05) lower compared with the HS cows. Also, the HT cows showed lower (P < 0.01) rectal temperature and acetic acid to propionic acid ratio than the HS group of cows. Omics sequencing revealed that the relative abundances of Muribaculaceae, Rikenellaceae, Acidaminococcaceae, Christensenellaceae, Rikenellaceae_RC9_gut_group, Succiniclasticum, Ruminococcaceae_NK4A214_group and Christensenellaceae_R-7_group were significantly (P < 0.01) higher in the HT cows; whereas Prevotellaceae, Prevotella_1, Ruminococcaceae_UCG-014, and Shuttleworthia were significantly (P < 0.01) lower in HT cows compared to HS cows. Substances mainly involved in carbohydrate metabolism, including glycerol, mannitol, and maltose, showed significantly higher content in the HT cows (P < 0.05) compared to that in the HS cows. Simultaneously, distinct metabolites were significantly correlated with differential bacteria, suggesting that glycerol, mannitol, and maltose could serve as potential biomarkers for determining heat resistance that require further study. Overall, distinct changes in the rumen microbiota and metabolomics in the HT cows may be associated with a better adaptability to heat stress. These findings suggest their use as diagnostic tools of heat tolerance in dairy cattle breeding schemes.

Characteristics and diversity of microbial communities in lead-zinc tailings under heavy metal stress in north-west China

High-throughput 16S rRNA and 18S rRNA sequencing were performed to study the changes of soil microbial diversity and community structure under different heavy metal pollution levels in Chengxian lead-zinc mining area, Gansu Province. In this study, we characterized the main physicochemical properties, multiple heavy metal pollution, and microbial community structure of the soil in the tailings. The results show that the soil near the tailings pond was alkaline, barren and the heavy metals were seriously polluted. The microbial diversity and richness of S1 and S2 sites were significantly lower than that of CK2 site (P < 0·05), indicating that the heavy metal pollution could change the physicochemical properties and microbial community structure in soil. Among 97 identified core operating taxa of fungal communities, Ascomycota, Teguta and Basidiomycota were dominant at the phylum level, while among 1523 identified core operating taxa of bacterial communities, Actinomycota was dominant at the phylum level. In addition, the redundancy analysis and Spearman correlation analysis showed that the physicochemical properties and the heavy metal concentration had significant effects on the composition and distribution of soil microbial community. The basic characteristics of soil physicochemical properties, multiple heavy metal pollution and microbial community structure in the tailings were revealed, hoping to provide a basis for ecological rehabilitation of tailings by revealing the variance rule of microbial community diversity in the future.

[Evaluation of developmental toxicity of ammonium dinitramide by micromass culture and embryonic stem cells models]

Objective: To evaluated the potential developmental toxicity and teratogenicity of ammonium dinitroamide (ADN) by micromass test (MM Test) and embryonic stem cell test models. Methods: In September 2018, rat embryos were isolated and limb bud cells were collected. The limb bud cells were treated with different concentrations of ADN (0, 312.50, 625.00, 1250.00, 2500.00, 5000.00, 10000.00 μg/ml) . Half proliferation inhibitory concentration and half differentiation inhibitory concentration were calculated and the teratogenic effects were evaluated according to the criteria. For the embryonic stem cell test, the effects of different concentrations of ADN (0, 39.06, 78.13, 156.25, 312.50, 625.00, 1250.00, 2500.00 μg/ml) on the differentiation of mouse embryonic stem cells (mESCs) into myocardial cells and the cytotoxicity of mESCs and 3T3 cells were detected. The embryonic toxicity was evaluated according to the criteria. In this study, both 5-fluorouracil (5-FU) , a known strong embryonic toxic drug, and penicillin-G (P-G) , a non-embryonic toxic drug, were used to verify the effectiveness of the model, and the validated test model was applied to evaluate the embryonic toxicity of ADN. Results: In the MM Test, the inhibition rates of proliferation and differentiation of limb bud cells in ADN groups were higher than that in control group (P<0.05) . And the half proliferation inhibitory concentration and half differentiation inhibitory concentration of ADN on limb bud cells were 7480.32 and 4526.09 μg/ml, respectively. ADN was determined to be non-teratogenic by standard. In the embryonic stem cell test, the inhibition rates of mESCs proliferation in ADN groups were higher than that in control group, and the inhibition rates of 3T3 cells in 156.25, 312.50, 625.00, 1250.00, 2500.00 μg/ml ADN groups were higher than that in control group (P<0.05) . The half proliferation inhibitory concentration and half differentiation inhibitory concentration of ADN on mESCs were 1851.73 and 1796.39 μg/ml, respectively, and the half proliferation inhibitory concentration on 3T3 cells was 3334.35 μg/ml. ADN was determined to be non-embryotoxic by standard. Conclusion: After evaluation by MM Test and embryonic stem cell models, ADN has no embryo toxicity and is a non-teratogenic substance.

Whole genome survey and genetic markers development of crocodile flathead Cociella crocodilus

Flatheads in family Platycephalidae are ecologically and commercially important marine fish species in the Indo-West Pacific. Due to similar morphological characters, the taxonomy and phylogenetics of flatheads are in confusion. Studies on phylogenetics and molecular marker development are required to discriminate congeners of flatheads. In the present study, we performed whole genome survey sequencing of crocodile flathead Cociella crocodilus to provide genomic information and genetic markers of this species. In total, 54.03 Gb of clean genomic data were generated. The genome size was estimated to be 732.99 Mb with the heterozygosity ratio of 0.73% and the repeat sequence ratio of 33.48%. The preliminary assembled genome sequences were 794.07 Mb with contig N50 of 1504 bp. We detected 2 624 875 genome-wide SNPs with transition/transversion ratio of 1.422. A total of 313 842 microsatellite motifs were identified, most of which were dinucleotide motifs with a frequency of 74.89%. In addition, we assembled the complete mitogenome of C. crocodilus and subsequent phylogenetic analysis were performed. Phylogenetic analyses revealed numbers of polyphyletic groups in family Platycephalidae. The reported genomic data and genetic markers in our study should be useful in further phylogeny and phylogenomics studies of flathead species.

Combination of anlotinib and gemcitabine promotes the G0/G1 cell cycle arrest and apoptosis of intrahepatic cholangiocarcinoma in vitro

Background

Intrahepatic cholangiocarcinoma (ICC) is a malignant carcinoma with high rate of mortality. The current treatment is ineffective with poor survival time. Therefore, there is an urgent need for effective therapeutic drug regimens. The multi‐target tyrosine kinase inhibitor (TKI) anlotinib has been approved for treating non‐small cell lung cancer (NSCLC); however, the combined therapeutic regimen of anlotinib for ICC has not been investigated yet. This study aims to investigate the inhibitory effect of anlotinib and the mechanism of gemcitabine combination for ICC treatment.

Methods

Two ICC cell lines, HCCC‐9810 and RBE cells, were used in this study. Cell Counting Kit‐8 (CCK‐8) was used to study the cell viability, and flow cytometry (FCM) was used to evaluate the apoptosis and cell cycle arrest. Compusyn software was used to calculate the combination index (CI) of anlotinib and gemcitabine. The protein expression rate of cleaved PARP/PARP and cleaved caspase‐3/caspase‐3 was detected by Western blotting.

Results

Our result showed that the anlotinib and gemcitabine combination significantly inhibits the growth of ICC cell lines. Compusyn software results showed that the combination regimen had an anti‐tumor synergistic effect. FCM results showed that it promoted apoptosis. Moreover, it increased the protein expression rate of cleaved PARP/PARP and cleaved caspase‐3/caspase‐3. Finally, we found a synergistic anti‐tumor effect by increasing G0/G1 cell cycle arrest.

Conclusion

The combination of anlotinib and gemcitabine can increase the anti‐tumor effect and may be a potential therapeutic drug regimen in a clinical setting.

POS0905 ACHIEVEMENT OF PARTIAL REMISSION AND INACTIVE DISEASE IN UPADACITINIB-TREATED PATIENTS WITH ANKYLOSING SPONDYLITIS

Background:

Assessment of SpondyloArthritis international Society (ASAS) response criteria and AS Disease Activity Score (ASDAS) are both commonly used, rigorous composite indices consisting of components with relevance to patients. Clinically meaningful thresholds for these measures have been defined to reflect partial remission (PR), inactive disease (ID), and low disease activity (LDA).

Objectives:

To study the association of ASAS PR and ordinal ASDAS disease categories (including ASDAS ID, which is the most stringent category of this composite score) in upadacitinib (UPA)-treated patients with AS.

Methods:

In the SELECT-AXIS 1 (NCT03178487) study, biologic DMARD naïve-patients (pts; ≥18 y) with active AS and intolerance/contraindication or inadequate response to ≥2 NSAIDs were randomized 1:1 to UPA 15 mg once daily (QD) or placebo (PBO).1 At wk 14, pts entered an open-label extension (OLE) of UPA 15 mg QD; pts randomized to PBO were switched to UPA. This post hoc analysis assessed the responsiveness of individual ASAS and ASDAS core components among pts who achieved ASAS PR. The association of ASAS PR with achievement of ASDAS ID (ASDAS <1.3), ASDAS LDA (ASDAS <2.1 but ≥1.3) or ASDAS high disease activity (HDA)/very HDA (VHDA) (ASDAS ≥2.1 for HDA/VHDA) was also assessed by measures including Youden index, distance to perfect point, and sensitivity/specificity equality. These evaluations were performed in pts randomized to UPA from baseline (BL; continuous UPA, assessed at wk 14) and those who were randomized to PBO and switched to UPA upon entry in the OLE (PBO to UPA; re-baselined at wk 14 and assessed at wk 32, representing 18 wks of UPA exposure).

Results:

At wk 14, for the continuous UPA group, 16 pts (19%) achieved ASAS PR. At wk 32, following 18 wks of UPA exposure for the PBO-to-UPA group, 28 pts (33%) achieved ASAS PR. Among both groups (continuous UPA and PBO-to-UPA), improvements were seen across all core components (Figure 1). Of the 44 total pts who achieved ASAS PR, 91% achieved either ASDAS ID or LDA. The majority of patients who achieved ASAS PR achieved ASDAS ID in the continuous UPA and PBO-to-UPA groups: 11/16 (69%) and 16/28 (57%), respectively. For the continuous UPA group, the remaining 5 pts who achieved ASAS PR also achieved ASDAS LDA (Table 1). ASAS PR was associated with ASDAS categories in the following manner: the highest rate of ASAS PR was achieved for ASDAS ID followed by ASDAS LDA followed by ASDAS HDA/VHDA. The cutoff of 1.3 (the upper threshold for ASDAS ID) was a better discrimination threshold for ASAS PR than the cutoff of 2.1 (the upper threshold for ASDAS LDA).

Conclusion:

Nineteen percent of pts receiving UPA from BL achieved ASAS PR after 14 wks of treatment, with similar results seen in pts who were originally randomized to PBO and switched to UPA at wk 14. A consistent improvement was seen across all core components of ASAS among those who achieved ASAS PR with UPA treatment. The achievement of ASAS PR was most closely associated with the achievement of ASDAS ID, providing further clarity on the reduction of disease activity in AS pts treated with UPA.

References:

[1]van der Heijde, et al. Lancet. 2019;394(10214):2108-2117.

Table 1.

Association Between ASAS PR and ASDAS Clinical Thresholds (ID/LDA/HDA or VHDA)

ASDAS ID(<1.3)ASDAS LDA(1.3 to <2.1)ASDAS HDA or VHDA(≥2.1)Continuous UPA Groupn=15n=31n=39 ASAS PR Responders (n=16)1150 ASAS PR Non-responders (n=69)42639PBO to UPA Groupn=25n=35n=25 ASAS PR Responders (n=28)1684 ASAS PR Non-responders (n=57)92721

P<0.001 for association of ASAS PR with the ordered ASDAS categories of ID-LDA-HDA, for both Continuous UPA Group and PBO to UPA Group. P-value calculated from Cochran-Armitage trend test for association of ordinal categories.

ASAS, Assessment of SpondyloArthritis international Society response criteria; ASDAS, AS Disease Activity Score; HDA, high disease activity; ID, inactive disease; LDA, low disease activity; PBO, placebo; PR, partial remission; UPA, upadacitinib; VHDA, very high disease activity.

Acknowledgements:

AbbVie funded this study and participated in the study design, research, analysis, data collection, interpretation of data, reviewing, and approval of the publication. All authors had access to relevant data and participated in the drafting, review, and approval of this publication. No honoraria or payments were made for authorship. Medical writing support was provided by J Urbanik of AbbVie and M Hovenden and J Matsuura of Complete Publication Solutions, LLC (funded by AbbVie).

Disclosure of Interests:

Atul Deodhar Speakers bureau: Novartis and Pfizer, Consultant of: Novartis, Pfizer, AbbVie, Eli Lilly, UCB Pharma, GlaxoSmithKline, Galapagos, Janssen, Boehringer Ingelheim and Celgene, Amgen., Grant/research support from: AbbVie, Eli Lilly, UCB Pharma, GlaxoSmithKline, Andrew Ostor Consultant of: AbbVie, BMS, Roche, Janssen, Lilly, Novartis, Pfizer, UCB, Gilead, and Paradigm, anna maniccia Shareholder of: AbbVie, Employee of: AbbVie, Fabiana Ganz Shareholder of: AbbVie, Employee of: AbbVie, Tianming Gao Shareholder of: AbbVie, Employee of: AbbVie, Alvina Chu Shareholder of: AbbVie, Employee of: AbbVie, Denis Poddubnyy Speakers bureau: AbbVie, BMS, Lilly, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Biocad, Gilead, GSK, Lilly, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Lilly, MSD, Novartis, and Pfizer

POS0924 PREDICTORS OF 1-YEAR TREATMENT RESPONSE AMONG UPADACITINIB-TREATED PATIENTS WITH ANKYLOSING SPONDYLITIS: A POST HOC ANALYSIS OF SELECT-AXIS 1

Background:

Upadacitinib (UPA) is an oral Janus kinase inhibitor that has demonstrated efficacy and safety among patients with ankylosing spondylitis (AS) in the phase 2/3 SELECT-AXIS 1 study.1 If identified, early predictors of treatment response may inform treat-to-target strategies and optimize patient outcomes in AS.

Objectives:

To determine whether baseline (BL) characteristics or early responses predict clinical response at 1 year in UPA-treated patients with AS.

Methods:

In the double-blind, randomized, placebo (PBO)-controlled SELECT-AXIS 1 study, patients received UPA 15 mg once daily or PBO until Week 14.1 At Week 14, PBO-treated patients switched to UPA 15 mg; patients originally randomized to UPA continued UPA therapy. Data from patients in the PBO and UPA arms were combined based on overall exposure to UPA; in the switch arm, exposure was defined as current visit minus 14 weeks (time of switch). The following outcomes were assessed at 1 year: Ankylosing Spondylitis Disease Activity Score with C-reactive protein (ASDAS[CRP]) inactive disease (ID; <1.3) and low disease activity (LDA; <2.1), Assessment of SpondyloArthritis International Society (ASAS) partial remission (PR), and ≥40% improvement in ASAS criteria (ASAS40) response. The ability of BL characteristics, efficacy at Week 12, and back pain at Week 12 to predict 1-year outcomes was assessed using a univariable logistic regression model generating odds ratios (ORs; 95% confidence intervals). LASSO regression was used to select the best-fitted multivariable model at Week 12 for each outcome measure.

Results:

Among 187 patients who received or switched to UPA 15 mg, 70 (37.4%), 134 (71.7%), 73 (39.0%), and 131 (70.1%) achieved ASDAS(CRP) ID, ASDAS(CRP) LDA, ASAS PR, and ASAS40, respectively, following 1 year of UPA treatment. No meaningful predictors of 1-year efficacy outcomes were identified based on BL demographics (including disease duration, gender, and human leukocyte antigen B27 status) or BL disease characteristics (including ASDAS, Bath Ankylosing Spondylitis Disease Activity Index, and CRP levels). In univariable analyses, Week 12 responses based on several disease activity measures and patient-reported outcomes (PROs), including reductions (much better improvement [MBI], ≥30/≥50/≥70% reduction, or improvement) in back pain score, along with lower scores for back pain at Week 12, were associated with the achievement of ASDAS(CRP) ID, ASDAS(CRP) LDA, ASAS PR, and ASAS40 at 1 year (Figure 1). In a multivariable analysis, improvement from BL to Week 12 in back pain score consistently predicted several efficacy outcomes at 1 year.

Conclusion:

In upadacitinib-treated patients with AS, improvement in PROs and reduction in back pain score at 12 weeks predicted clinical outcomes at 1 year.

References:

[1]van der Heijde D, et al. Lancet 2019;394:2108–17.

Figure 1.

Association between Week 12 response or back pain at Week 12 and achievement of efficacy outcomes at 1 year (univariable analysis)

All ASDAS scores are calculated using C-reactive protein

ASDAS CII: change from BL ≥1.1; ASDAS MI: change from BL ≥2.0; MBI back pain: ≥2-point reduction in absolute score and ≥33% reduction from BL on a 0–10 NRS

ASAS, Assessment of SpondyloArthritis International Society; ASAS40, ≥40% improvement in ASAS criteria; ASDAS, Ankylosing Spondylitis Disease Activity Score; BASDAI50, ≥50% improvement in the Bath Ankylosing Spondylitis Disease Activity Index; BL, baseline; CI, confidence interval; CII, clinically important improvement; ID, inactive disease; LDA, low disease activity; MBI, much better improvement; MI, major improvement; NRS, numeric rating scale; OR, odds ratio; PR, partial remission

Acknowledgements:

AbbVie funded this study; contributed to its design; participated in data collection, analysis, and interpretation of the data; and participated in the writing, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by Laura Chalmers, PhD, of 2 the Nth (Cheshire, UK), and was funded by AbbVie.

Disclosure of Interests:

Marina Magrey Consultant of: Consultant for Janssen and Novartis; member of advisory boards for Eli Lilly, Janssen, Novartis, and UCB, Grant/research support from: AbbVie, Sofia Ramiro Consultant of: AbbVie, Eli Lilly, MSD, Novartis, Sanofi, and UCB, Grant/research support from: MSD, Marcelo Pinheiro Consultant of: AbbVie, Eli Lilly, Janssen, and Novartis, Tianming Gao Employee of: AbbVie employee and may own stock or options, Fabiana Ganz Employee of: AbbVie employee and may own stock or options, In-Ho Song Employee of: AbbVie employee and may own stock or options, Ana Biljan Employee of: AbbVie employee and may own stock or options, Nigil Haroon Consultant of: AbbVie, Amgen, Eli Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Martin Rudwaleit Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, Roche, and UCB

POS0923 INFLUENCE OF BASELINE DEMOGRAPHICS ON IMPROVEMENTS IN DISEASE ACTIVITY MEASURES IN PATIENTS WITH ANKYLOSING SPONDYLITIS RECEIVING UPADACITINIB: A POST HOC SUBGROUP ANALYSIS OF SELECT-AXIS 1

Background:

Upadacitinib (UPA), an oral Janus kinase inhibitor, has demonstrated efficacy and safety through 14 weeks in the SELECT-AXIS 1 study in biologic disease-modifying antirheumatic drug-naïve patients with active ankylosing spondylitis (AS).1

Objectives:

To evaluate the efficacy of UPA 15 mg once daily (QD) in selected subgroups of patients with AS based on different baseline characteristics.

Methods:

In SELECT-AXIS 1, patients were randomized to 14 weeks of blinded treatment with UPA 15 mg QD or placebo (PBO). This post hoc analysis evaluated the proportions of patients achieving ≥40% improvement in Assessment of SpondyloArthritis International Society criteria (ASAS40), ≥50% improvement in the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI50), and change from baseline in Ankylosing Spondylitis Disease Activity Score with C-reactive protein (ASDAS[CRP]) at Week 14 across subgroups based on the following baseline patient characteristics: gender, age, body mass index, AS symptom duration, C-reactive protein (CRP) levels, Spondyloarthritis Research Consortium of Canada Magnetic Resonance Imaging index, and human leukocyte antigen B27 status. For missing data, non-responder imputation analysis was used for ASAS40 and BASDAI50, and mixed model repeated measures analysis was used for ASDAS(CRP).

Results:

Baseline disease characteristics were balanced between the treatment groups at randomization, as previously reported.1 ASAS40 and BASDAI50 response rates at Week 14 were numerically higher with UPA 15 mg versus PBO across the demographic and disease characteristic subgroups evaluated (Figure 1), including some subgroups with small sample sizes, such as patients with disease duration <5 years and female patients. Improvements from baseline in ASDAS(CRP) were also consistently greater with UPA 15 mg versus PBO across the subgroups evaluated (Table 1).

Conclusion:

Within subgroups evaluated, most patients with active AS receiving UPA 15 mg demonstrated greater improvements versus PBO in disease activity measures assessed by ASAS40, BASDAI50, and change from baseline in ASDAS(CRP). There was some evidence that gender, AS symptom duration, and baseline CRP levels seemed to influence outcomes, though results should be interpreted with caution due to small sample sizes for some subgroups.

References:

[1]van der Heijde D, et al. Lancet 2019;394:2108–17.

Table 1.

PBO-corrected mean change from baseline (95% CI) in ASDAS(CRP) at Week 14 in patients receiving UPA 15 mg by baseline subgroups (MMRM)

nASDAS(CRP)SubgroupUPA15 mgPBOPBO-corrected mean change from baseline (95% CI)GenderMale5862–1.11 (–1.37, –0.84)Female2622–0.44 (–0.92, 0.03)Age<40 years2436–1.00 (–1.42, –0.58)40–<65 years5146–0.88 (–1.17, –0.59)Body mass index<25 kg/m23237–0.92 (–1.30, –0.55)≥25 kg/m25247–0.89 (–1.20, –0.59)AS symptom duration<5 years1617–0.90 (–1.46, –0.34)≥5 years6867–0.92 (–1.18, –0.66)Baseline hsCRP≤2.8 mg/L2319–0.59 (–1.02, –0.15)>2.8–<10 mg/L3934–0.59 (–0.95, –0.23)≥10 mg/L2231–1.64 (–2.01, –1.27)Inflammation based on SPARCC MRI scoresPositivea5657–0.98 (–1.27, –0.69)Negativeb2116–0.60 (–1.08, –0.12)HLA-B27 statusPositive6266–0.97 (–1.24, –0.71)Negative2017–0.73 (–1.28, –0.17)

aSpine SPARCC score ≥2 or sacroiliac joint SPARCC score ≥2. bSpine SPARCC score <2 and sacroiliac joint SPARCC score <2

ASDAS(CRP), Ankylosing Spondylitis Disease Activity Score with C-reactive protein; CI, confidence interval; HLA-B27, human leukocyte antigen B27; hsCRP, high-sensitivity C-reactive protein; MMRM, mixed model repeated measures; MRI, magnetic resonance imaging; PBO, placebo; SPARCC, Spondyloarthritis Research Consortium of Canada; UPA, upadacitinib

Acknowledgements:

AbbVie funded this study; contributed to its design; participated in data collection, analysis, and interpretation of the data; and participated in the writing, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by Laura Chalmers, PhD, of 2 the Nth (Cheshire, UK), and was funded by AbbVie.

Disclosure of Interests:

Filip van den Bosch Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Janssen, and UCB, Denis Poddubnyy Speakers bureau: AbbVie, Celgene, Eli Lilly, MSD, Novartis, Pfizer, Roche, and UCB, Consultant of: AbbVie, Celgene, Eli Lilly, MSD, Novartis, Pfizer, Roche, and UCB, Jayne Stigler Employee of: AbbVie employee and may own stock or options, Andrew Ostor Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, Roche, Sanofi, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, Roche, Sanofi, and UCB, Grant/research support from: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, Roche, Sanofi, and UCB, Salvatore D’Angelo Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Eli Lilly, Janssen, MSD, Novartis, Pfizer, and UCB, Victoria Navarro-Compán Speakers bureau: AbbVie, Bristol-Myers Squibb, Eli Lilly, Janssen, MSD, Novartis, Pfizer, Roche, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Eli Lilly, Janssen, MSD, Novartis, Pfizer, Roche, and UCB, In-Ho Song Employee of: AbbVie employee and may own stock or options, Tianming Gao Employee of: AbbVie employee and may own stock or options, Fabiana Ganz Employee of: AbbVie employee and may own stock or options, Lianne S. Gensler Consultant of: AbbVie, Eli Lilly, Gilead, GSK, Novartis, Pfizer, and UCB, Grant/research support from: Pfizer and UCB

POS0235 COMPARISON OF AXIAL AND PERIPHERAL MANIFESTATIONS IN PATIENTS WITH PSORIATIC ARTHRITIS AND ANKYLOSING SPONDYLITIS IN UPADACITINIB CLINICAL TRIALS

Background:

Axial, peripheral, and other disease manifestations often overlap between psoriatic arthritis (PsA) and ankylosing spondylitis (AS). Upadacitinib (UPA) is an oral Janus kinase inhibitor under evaluation for the treatment of PsA and AS.

Objectives:

To describe and compare baseline characteristics and UPA efficacy across 4 subgroups of patients (pts) from clinical trials: active PsA (with/without axial involvement) and active AS (with/without peripheral involvement).

Methods:

Baseline characteristics and efficacy of UPA in reducing axial and peripheral signs and symptoms were assessed via an integrated analysis across the 4 pt subgroups from the SELECT-PsA 1,1 SELECT-PsA 2,2 and SELECT-AXIS3 studies. Analyses of baseline characteristics included pts in the UPA 15 mg once daily (QD), UPA 30 mg QD, and placebo (PBO) groups; efficacy analyses included pts in the UPA 15 mg QD group only. Axial involvement in PsA (axial PsA) was determined by investigator assessment. Peripheral involvement in AS was defined based on presence of tender or swollen joints (TJC68 >0 or SJC66 >0), or presence of enthesitis at baseline (Maastricht Ankylosing Spondylitis Enthesitis Score >0).

Results:

2102 pts (UPA 15 mg; UPA 30 mg; PBO) were evaluated across the 4 subgroups (PsA [with/without axial involvement]: 626/1289; AS [with/without peripheral involvement]: 135/52). 33% of pts with PsA had axial PsA; 72% of pts with AS had peripheral symptoms. Pts with axial PsA had higher peripheral joint (TJC68 and SJC66) and skin (psoriasis) burden than pts with AS with peripheral involvement (p<0.0001). Pts with AS with peripheral involvement had significantly greater overall pain (pt’s assessment of pain; p=0.0002) and back pain (BASDAI Q2; p<0.0001) scores, and higher total BASDAI (p=0.0076) and ASDAS (p=0.0351) scores than pts with axial PsA; physician’s global assessment of disease activity, and peripheral pain and tenderness (BASDAI Q3 and Q4) were numerically similar for these 2 subgroups (Table 1). The efficacy of UPA 15 mg (measured using ASDAS and BASDAI) was generally consistent across the 4 pt subgroups regardless of peripheral or axial involvement (Figure 1).

Table 1.

Baseline demographics, medical history, and disease characteristics

Mean (SD), unless otherwise specifiedPsA with axial involvementn=626PsA without axial involvementn=1289AS with peripheral involvementn=135AS without peripheral involvementn=52p-value(PsA with axial involvement versus AS with peripheral involvement)Male, n (%)300 (47.9)583 (45.2)88 (65.2)44 (84.6)0.0003Age, years50.7 (12.6)52.0 (12.0)46.6 (12.7)42.2 (11.4)0.0008Body mass index, kg/m230.3 (7.1)30.7 (6.8)a26.7 (4.9)26.8 (5.2)*Duration of disease symptoms, years11.2 (9.3)b10.4 (9.5)a14.6 (10.9)14.0 (10.6)0.0009Duration of disease since diagnosis, years7.7 (8.0)7.3 (8.0)7.0 (9.2)6.8 (8.4)0.3738TJC6823.6 (16.4)20.6 (14.6)5.3 (8.2)0*SJC6611.9 (9.0)11.2 (8.2)1.5 (3.2)0*Psoriasis, n (%)616 (98.4)1269 (98.4)7 (5.2)0*Uveitis, n (%)1 (0.2)5 (0.4)3 (2.2)1 (1.9)0.0191Inflammatory bowel disease, n (%)10 (1.6)13 (1.0)2 (1.5)2 (3.8)1.0000PhGA6.7 (1.7)6.5 (1.7)6.7 (1.5)c6.9 (1.7)b0.6960Pain, VAS 0–106.3 (2.0)b6.1 (2.2)d6.9 (1.6)a6.8 (1.7)a0.0002ASDAS(CRP)3.4 (1.0)e3.1 (1.0)f3.5 (0.7)a3.7 (0.8)a0.0351BASDAI (Total score)6.0 (2.1)e5.5 (2.2)f6.4 (1.6)6.3 (1.8)a0.0076BASDAI Q2 (Back pain)6.1 (2.7)e4.8 (3.2)f7.2 (1.7)7.2 (1.6)a*BASDAI Q3 (Peripheral pain/ swelling)6.3 (2.4)e6.0 (2.6)f5.9 (2.4)5.5 (2.4)a0.0747BASDAI Q4 (Tenderness)5.8 (2.6)e5.6 (2.7)f6.1 (2.5)5.7 (2.4)a0.3196

*p<0.0001

Data missing for an=1, bn=3, cn=6, dn=11, en=4, fn=14

Conclusion:

Pts with PsA with axial involvement and pts with active AS showed some differences in baseline characteristics but similar improvements versus placebo with UPA 15 mg QD.

References:

[1]McInnes I, et al. Ann Rheum Dis 2020;79(Suppl 1):16–17; 2. Genovese MC, et al. Ann Rheum Dis 2020;79(Suppl 1):139; 3. van der Heijde D, et al. Lancet 2019;394:2108–17.

Acknowledgements:

AbbVie funded this study; contributed to its design; participated in data collection, analysis, and interpretation of the data; and participated in the writing, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by Grant Thomas Kirkpatrick, MSc, of 2 the Nth (Cheshire, UK), and was funded by AbbVie.

Disclosure of Interests:

Xenofon Baraliakos Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Chugai, Eli Lilly, Galapagos, Gilead, MSD, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, Chugai, Eli Lilly, Galapagos, Gilead, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Bristol-Myers Squibb, Celgene, Chugai, Eli Lilly, Galapagos, Gilead, MSD, Novartis, Pfizer, and UCB, Atul Deodhar Speakers bureau: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squibb, Eli Lilly, GSK, Janssen, Novartis, Pfizer, and UCB, Consultant of: AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squibb, Eli Lilly, GSK, Janssen, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Eli Lilly, GSK, Novartis, Pfizer, and UCB, R Ranza Speakers bureau: AbbVie, Janssen, Novartis, and Pfizer, Consultant of: AbbVie, Janssen, Novartis, and Pfizer, Simona Rednic: None declared, francesco ciccia Speakers bureau: AbbVie, Bristol-Myers Squibb, Celgene, Novartis, Pfizer, UCB, and Werfen, Consultant of: AbbVie, Bristol-Myers Squibb, Celgene, MSD, Novartis, Pfizer, and UCB, Grant/research support from: AbbVie, Celgene, Chugai, Pfizer, and UCB, Fabiana Ganz Shareholder of: May own stock or options in AbbVie, Employee of: AbbVie, Tianming Gao Shareholder of: May own stock or options in AbbVie, Employee of: AbbVie, Apinya Lertratanakul Shareholder of: May own stock or options in AbbVie, Employee of: AbbVie, In-Ho Song Shareholder of: May own stock or options in AbbVie, Employee of: AbbVie, Andrew Ostor Speakers bureau: AbbVie, Bristol-Myers Squibb, Eli Lilly, Gilead, MSD, Novartis, Pfizer, and Roche, Consultant of: AbbVie, Bristol-Myers Squibb, Eli Lilly, Gilead, MSD, Novartis, Pfizer, and Roche, Laura C Coates: None declared.

OP0233 EFFICACY AND SAFETY OF UPADACITINIB IN PATIENTS WITH PSORIATIC ARTHRITIS AND AXIAL INVOLVEMENT

Background:

Patients (pts) with psoriatic arthritis (PsA) and axial involvment exhibit greater disease activity and quality of life impairments compared with those without axial involvment.

Objectives:

To characterize PsA pts with and without axial involvement and compare efficacy of UPA vs placebo (PBO) in PsA pts with axial involvement.

Methods:

In SELECT-PsA 1 (NCT03104400; N=1705, non-biologic DMARD IR) and SELECT-PsA 2 (NCT03104374; N=642, biologic DMARD IR), pts with active PsA (≥3 swollen and ≥3 tender joints), active or historical psoriasis, and on ≤2 non-biologic DMARDs were randomized to once daily UPA 15 mg, UPA 30 mg, adalimumab 40 mg every other week (SELECT-PsA 1 only), or PBO. Efficacy was assessed in pts with axial involvement (diagnosed by investigators based on totality of information) pooled from the 2 studies. Assessments included change from BL in BASDAI, BASDAI Q2 (neck/back/hip pain) and Q3 (joint swelling/pain), and the AS Disease Activity Score (ASDAS-CRP), and percentage with BASDAI 50 response, ASDAS inactive disease (ID), ASDAS low disease activity (LDA), ASDAS major improvement (MI), and ASDAS clinically important improvement (CII). Uveitis and inflammatory bowel disease (IBD) adverse events were reviewed. Data on 24-week PBO-controlled period are presented.

Results:

Prevalence of axial involvment was 31.3% in SELECT-PsA 1 and 34.2% in SELECT-PsA 2 (Table). Treatment with UPA 15 mg and 30 mg resulted in significantly greater improvements from BL in the BASDAI, BASDAI Q2 (neck/back/hip pain) and Q3 (joint swelling/pain) and ASDAS-CRP at weeks 12 and 24 vs PBO (Figure). Similarly, significantly higher percentages of pts on UPA 15 mg and 30 mg achieved BASDAI 50, ASDAS ID, LDA, MI, and CII at weeks 12 and 24 vs PBO (Figure). One pt on UPA 30 mg had incident uveitis, and no IBD was reported on UPA.

Table 1.

Demographics and Baseline Characteristics

SELECT-PsA 1SELECT-PsA 2Parameter, mean (SD)With Psoriatic Spondylitis(n=534)Without Psoriatic Spondylitis(n=1170)Pvalue*With Psoriatic Spondylitis(n=219)Without Psoriatic Spondylitis(n=421)Pvalue*BMI (kg/m2)29.9 (6.5)30.5 (6.9).081031.6 (8.0)31.3 (6.9).6226TJC6821.6 (15.1)19.2 (13.5).002227.5 (18.0)23.3 (16.2).0027SJC6611.7 (9.4)11.0 (7.9).118412.9 (9.2)11.7 (8.7).0804Physician’s Global Assessment (NRS 0–10)6.7 (1.6)6.5 (1.7).04376.6 (1.8)6.5 (1.7).1897HAQ-DI1.2 (0.6)1.1 (0.6).01701.2 (0.6)1.2 (0.7).2049n=531n=1164n=218n=416Presence of dactylitis, n (%)†188 (35.2)328 (28.0).002869 (31.5)100 (23.8).0348Presence of enthesitis, n(%)‡432 (80.9)884 (75.6).0147189 (86.3)337 (80.0).0125ASDAS–CRP3.4 (0.9)3.1 (1.0)<.00013.3 (1.0)3.2 (1.1).1032n=530n=1161n=217n=416BASDAI5.8 (2.0)5.3 (2.2)<.00016.2 (2.2)5.8 (2.2).0673n=530n=1161n=217n=416Morning Stiffness Duration (NRS 0–10; BASDAI Q6)5.0 (3.0)4.7 (3.0).03685.6 (3.2)5.1 (3.0).0454n=530n=1161n=217n=416Patient’s Assessment of Inflammatory Neck, Back, or Hip Pain (NRS 0–10; BASDAI Q2)5.8 (2.7)4.6 (3.2)<.00016.4 (2.8)5.4 (3.1).0001n=530n=1161n=217n=416

*Calculated by t-test for continuous variables and chi-square test for categorical values. Bolded if <0.05.

Defined as †LDI>0 and ‡total enthesitis count >0

Conclusion:

PsA pts with axial involvement had higher BL disease burden compared with those without axial involvement. UPA was efficacious in treating axial symptoms in pts with psoriatic spondylits.

References:

[1]van der Heijde D, et al. Lancet. 2019;394(10214):2108-2117.

Acknowledgements:

Abbvie funded the study. AbbVie participated in study design, research, analysis, data collection, interpretation of the data, reviewing, and approval. All authors had access to the relevant data and participated in the drafting, review, and approval of the abstract. No honoraria or payments were made for authorship. Medical writing support was provided by M Mehta, and J Matsuura of ICON plc (North Wales, PA) and was funded by AbbVie.

Disclosure of Interests:

Atul Deodhar Speakers bureau: Novartis and Pfizer, Consultant of: Novartis, Pfizer, AbbVie, Eli Lilly, UCB Pharma, GlaxoSmithKline, Galapagos, Janssen, Boehringer Ingelheim and Celgene, Grant/research support from: Novartis, Pfizer, AbbVie, Eli Lilly, UCB Pharma, GlaxoSmithKline, R Ranza Speakers bureau: AbbVie, Janssen, Lilly, Novartis, and Pfizer, Consultant of: AbbVie, Janssen, Lilly, Novartis, and Pfizer, Grant/research support from: AbbVie, Janssen, Fabiana Ganz Shareholder of: AbbVie, Employee of: AbbVie, Tianming Gao Shareholder of: AbbVie, Employee of: AbbVie, Jaclyn Anderson Shareholder of: AbbVie, Employee of: AbbVie, Andrew Ostor Consultant of: AbbVie, BMS, Roche, Janssen, Lilly, Novartis, Pfizer, UCB, Gilead, and Paradigm

MicroRNA-338 in MSCs-derived exosomes inhibits cardiomyocyte apoptosis in myocardial infarction

OBJECTIVE

Myocardial infarction (MI) is caused by myocardial ischemia and hypoxia, which causes irreversible damage to the myocardium and seriously endangers human health. Exosomes are small, monolayer-structured extracellular vesicles that transport proteins, lipids, mRNAs, and miRNAs between cells. Mesenchymal stem cells (MSCs) can secrete a large number of exosomes and play a role in many pathophysiological processes. The purpose of this paper was to investigate the role of exosomal microRNA-338 (miR-338) in MI and its underlying mechanism of action.

MATERIALS AND METHODS

We transfected rat bone marrow-derived MSCs with miR-338 mimic or negative control and extracted exosomes secreted by MSCs. Expression of miR-338 in MSCs, exosomes, and H9c2 cells co-cultured with exosomes was detected by PCR. Then, we treated H9c2 cells with H2O2. We transfected miR-338 inhibitor into H9c2 cells co-cultured with exosomes to further study the function of miR-338. Apoptosis of H9c2 cells were observed by Western blot, flow cytometry, and cell staining. We also established a MI rat model to study the function in vivo and injected exosomes in the myocardium. Seven days later, we used echocardiography to detect the heart function of rats.

RESULTS

MiR-338 was upregulated in MSCs transfected with miR-338 mimic, exosomes, and H9c2 cells co-cultured with exosomes. When H9c2 cells were co-cultured with exosomes overexpressing miR-338, the expression of Bax was decreased while the expression of Bcl-2 was increased, and the apoptosis rate was also decreased as shown in flow cytometry, and the amount of caspase3 fluorescence was also decreased. Cardiac function was markedly improved after intramyocardial injection of exosomes overexpressing miR-338 in rats. It was demonstrated using computational tools, Western blot, and Luciferase reporter gene experiments that miR-338 could regulate JNK pathway via targeting MAP3K2.

CONCLUSIONS

Exosomal miR-338 can inhibit cardiomyocyte apoptosis and improve cardiac function in rats with myocardial infarction by regulating MAP3K2/JNK signaling pathway.

Effects of hsa_circ_0000711 expression level on proliferation and apoptosis of hepatoma cells

OBJECTIVE

To investigate the role of human serum albumin (hsa)_circular (circ)_0000711 in hepatocellular carcinoma (HCC). Circular ribonucleic acids (circRNAs) are proven in numerous studies to play crucial role in tumor biology, but their roles in HCC remain unknown to a great extent.

PATIENTS AND METHODS

The circRNA expression profile microarray was employed to screen differentially expressed circRNAs in tumor tissues and adjacent tissues from HCC patients, and Reverse Transcription-quantitative Polymerase Chain Reaction (RT-qPCR) assay was performed for further verification. Next, the target micro RNAs (miRNAs) and their messenger RNAs (mRNAs) of key circRNAs were predicted by bioinformatics software, and a circRNA-miRNA-mRNA regulatory network was constructed. Subsequently, KEGG and GO enrichment analyses were applied to predict the possible biological processes regulated by hsa_circ_0000711 and relevant signaling pathways. The miRNAs playing a key role in the circRNA-miRNA-mRNA regulatory network were then selected as the objects, and their direct binding to hsa_circ_0000711 was confirmed via luciferase reporter gene assay. Thereafter, hsa_circ_0000711 was overexpressed or knocked out, and the biological function of hsa_circ_0000711 was detected by cell counting kit-8 (CCK-8) assay, apoptosis detection, and 5-Ethynyl-2'-deoxyuridine (EdU) staining assay in vitro.

RESULTS

The results of expression profile screening revealed that there was a significant difference in the expression profile of circRNAs between tumor tissues and adjacent tissues in HCC patients. Based on the circRNA expression profile and RT-qPCR results, the expression level of hsa_circ_0000711 was overtly reduced in HCC tissues. In addition, miR-103a-3p had the highest eigenvector centrality in the circRNA-miRNA-mRNA regulatory network, suggesting that miR-103a-3p is a vital participant in the pathological mechanism of hsa_circ_0000711. The KEGG enrichment analysis results pointed out that the target genes regulated by hsa_circ_0000711 were clearly enriched in the tumor-associated signaling pathways. Besides, the results of GO enrichment analysis demonstrated that the biological processes regulated by hsa_circ_0000711 were mainly related to cell cycle regulation, so cell proliferation might be affected. The results of luciferase reporter gene and RT-qPCR assays showed that hsa_circ_0000711 directly bound to has-miR-103a-3p to serve as a molecular sponge. The results of CCK-8 and EdU staining assays revealed that the proliferation of hepatoma cells in hsa_circ_0000711 overexpression group was evidently enhanced. In addition, it was further found via flow cytometry that the apoptosis rate of cells was significantly raised in hsa_circ_0000711 low-expression group and dramatically declined in hsa_circ_0000711 overexpression group.

CONCLUSIONS

Overexpression of hsa_circ_0000711 promoted the proliferation and inhibited the apoptosis of hepatoma cells via targeting has-miR-103a-3p.

[Influence of glottal stops on nasalance and velopharyngeal closure status after cleft palate surgery]

Objective: To investigate the influence of glottal stops for the relationship between nasalance and velopharyngeal closure status of cleft palate patients after surgery. Methods: A total of 71 patients with postoperative cleft palate speech disorders treated in the Department of Oral and Maxillofacial surgery, School of Stomatology, Peking University from August 2004 to August 2010 were included. The compensated speech evaluation of cleft palate with or without glottic occlusion was performed in 50 males and 21 females with an average age of (15.9±6.2) years old. The nasal sound meter and nasopharyngeal fiber endoscope were used to record the nasal phonation rate and the score of nasopharyngeal fiber endoscopic visual analog scale (VAS) of the patients. According to the results of glottic plug speech evaluation, the patients were divided into three groups: whole group (without glottic plug), glottic plug group and silent glottic plug group. The nasal phonation rate values and VAS values of 11 speech samples (unit vowel No. 1-3, continuous syllable No. 4-9, sentence 10-11) of the three groups were compared by Pearson analysis. Results: There were 71 patients in the whole group, 34 patients in the glottic plug group and 37 patients in the silent glottis group. There was a negative correlation between nasal phonetic rate and VAS of 11 speech samples in the whole group, however there were no significant difference (r>-0.179 and<-0.017, P>0.017) and no significant correlation between nasal phonetic rate and VAS in glottic occlusion group (r>-0.196 and<-0.017, P>0.05). There was a significant negative correlation between nasal phonetic rate and VAS value of all but No. 1, 3 and 11 speech samples in silent door plug group (P<0.05), among which No. 7 speech sample was the most sensitive sample (r=-0.557, P<0.05). Conclusions: The present study showed the glottal stops could affect the evaluation of the velopharyngeal closure function by using nasometer. Glottal stops should be considered as one important factor for the nasalance.

Protective effect of overexpression of PrxII on H2O2-induced cardiomyocyte injury

OBJECTIVE

Oxidative stress is one of the main factors leading to myocardial cell damage, and the redox imbalance promotes apoptosis. Therefore, the purpose of this study was to explore the protective effect of PrxII on H2O2-induced H9c2 cell injury.

MATERIALS AND METHODS

The overexpressed PrxII cell model was constructed by virus. The H9c2 cells were treated with H2O2, and the supernatant and cells were collected. Then, the chymotrypsin-like activity, caspase-like activity, and trypsin-like activity were detected by the kit, and the expressions of P21, P27, and P53 were detected by the ELISA method. Finally, the expressions of antioxidant factors, apoptosis-related factors, and AMPK/Sirt1 signaling pathway were detected by Western blot and Real-time polymerase chain reaction (PCR).

RESULTS

Overexpression of PrxII inhibited the decrease of enzyme activity induced by H2O2, promoted the expressions of anti-oxidation factors GPX1, GPX2, and GSX, and inhibited the expressions of apoptosis-related factors P21, P27, and P53, and activated AMPK/Sirt1 pathway.

CONCLUSIONS

Overexpression of PrxII can activate the AMPK/Sirt1 pathway, thereby inhibiting H2O2-induced oxidative stress and slowing apoptosis.

The use of mindfulness-based intervention to improve bracing compliance for AIS patients

Introduction

Despite good bracing compliance is crucial to prevent curve progression among braced AIS patients, only few interventions were suggested to improve bracing compliance. This study examined the effect of MBI on bracing compliance for AIS patients.

Methods

116 eligible AIS patients were randomized and 86 participants were enrolled in intervention. Patients in the MBI group joint weekly sessions, which is an adapted version of mindfulness-based stress reduction (MBSR) program, for 8 weeks. Control group consisted of an 8-week PE intervention that is recommended according to the SOSORT 2011 guideline. The primary outcome is the 6-month post-intervention bracing compliance. The secondary outcomes include quality of life and psychosocial measurements. Primary analysis was ANCOVA with treatment as covariate. Trend analysis was conducted using Linear Mixed effect model.

Results

At the end of intervention, intention-to-treat analysis improved bracing compliance by1.24h/day and 0.08h/day for MBI and PE respectively. MBI group presented an increase in emotional regulation than baseline (ERQ-CCA) (1.92, p = 0.01), especially in Cognitive reappraisal sub-scale (1.00, p = 0.05). Bracing Specific Quality of Life (SRS-22) reduced significantly in both groups, but MBI group decreased less (MBI: -3.08, p = 0.00, PE -4.47, p = 0.00). Effect at six months for compliance progressed negatively but favoured MBI group (MBI: -1.16, p = 0.13, PE: -1.84, p = 0.06) although there was no significant difference between groups (p = 0.78). The Perception of stress (PSS) decreased significantly in PE group (-3,53, p = 0.01) rather than MBI (1.53, p = 0.22), however the between-group difference isn't significant (p = 0.62).

Conclusions

It is alarming that patients in both interventions group progressed with poorer compliance and worsen QoL. These progressions were less severe in the MBI group than in the PE group, but the differences did not reach statistical significant.

Key messages

Both groups decreased in compliance and QoL but MBI group reduced less. MBI wasn't more effective in improving participants’ compliance and other measurements.

Thin superficial inferior epigastric artery perforator flap for reconstruction of the tongue

The superficial inferior epigastric artery (SIEA) flap is widely used in the repair of large soft tissue defects of the extremities and in breast reconstruction. Because of the high fat content of the abdomen, it has been less used for glossectomy reconstruction. Here we present a series of seven patients who each underwent reconstruction with a thin SIEA flap after resection of the tongue. There were six men and one woman (mean age 48, range 24-66 years). All patients underwent preoperative computed tomographic (CT) angiography, and colour Doppler ultrasound (US) was used to select and map the most suitable SIEA. The flap was raised above the Scarpa's layer while adjusted the plane of dissection according to the specific needs for bulk in each case. All the flaps survived; one flap required a secondary anastomosis because of a venous anastomotic embolus. The size of flap used was 5.0cm×6.0cm - 7.0cm×9.0cm, and the flap was 0.8cm-1.4cm thick. The functional outcome was evaluated at 6 - 18 months follow up, when speech and swallowing were both good in all cases. The dissection above the pubic symphysis is an important refinement of the SIEA flap, and we conclude that the thin SIEA flap is a good choice for reconstruction after excision of cancer of the tongue.

Reverse engineering a predictive signature characterized by proliferation, DNA damage, and immune escape from stage I lung adenocarcinoma recurrence

Identifying early-stage cancer patients at risk for progression is a major goal of biomarker research. This report describes a novel 19-gene signature (19-GCS) that predicts stage I lung adenocarcinoma (LAC) recurrence and response to therapy and performs comparably in pancreatic adenocarcinoma (PAC), which shares LAC molecular traits. Kaplan-Meier, Cox regression, and cross-validation analyses were used to build the signature from training, test, and validation sets comprising 831 stage I LAC transcriptomes from multiple independent data sets. A statistical analysis was performed using the R language. Pathway and gene set enrichment were used to identify underlying mechanisms. 19-GCS strongly predicts overall survival and recurrence-free survival in stage I LAC (P=0.002 and P<0.001, respectively) and in stage I-II PAC (P<0.0001 and P<0.0005, respectively). A multivariate cox regression analysis demonstrated the independence of 19-GCS from significant clinical factors. Pathway analyses revealed that 19-GCS high-risk LAC and PAC tumors are characterized by increased proliferation, enhanced stemness, DNA repair deficiency, and compromised MHC class I and II antigen presentation along with decreased immune infiltration. Importantly, high-risk LAC patients do not appear to benefit from adjuvant cisplatin while PAC patients derive additional benefit from FOLFIRINOX compared with gemcitabine-based regimens. When validated prospectively, this proof-of-concept biomarker may contribute to tailoring treatment, recurrence reduction, and survival improvements in early-stage lung and pancreatic cancers.

AB0243 THE SHORT DISEASE DURATION IS ASSOCIATED WITH WORSE MOOD DISORDER IN PATIENTS WITH RHEUMATOID ARTHRITIS

Background:

Rheumatoid arthritis (RA) is commonly associated with mood disorders, especially depression and anxiety. But the status of mood disorders in RA patients with different courses is unknown.

Objectives:

The aims of this study were to investigate the frequencies of depression and anxiety in patients with early RA and non-early RA, and further to identify the risk factors for mood disorders.

Methods:

Self-Rating Anxiety Scale (SAS) and Self-Rating Depression Scale (SDS) were applied to all enrolled RA patients to assess their corresponding status of anxiety and depression. Besides clinical assessment, power Doppler and grey-scale ultrasound of 22 joints were also performed. The status of mood disorder was studied in early RA patients compared to non-early RA patients. Multivariate regression was used to identify the risk factor for mood disorders.

Results:

201 RA patients were enrolled, with 76 early RA (disease duration≤2 years) and 125 non-early RA (disease duration > 2 years) patients. Mood disorder (depression and/or anxiety) was found in 20.9% (42/201) patients. Depression was more often observed in early RA patients than non-early RA patients (26.3% vs. 14.4%,P=0.036). The similar trend for anxiety was observed also in early RA patients compared to non-early RA patients, although the difference was insignificant (13.2% vs. 5.6%,P=0.062). Multivariate logistic regression analysis showed that disease duration (OR 0.991 [95% CI 0.985-0.998]), rheumatoid factor concentration (OR 2.697 [95% CI 1.165-6.241]), Health Assessment Questionnaire Disability Index (HAQ-DI) (OR 1.045 [95% CI 1.001-1.091]) and grey-scale synovitis score (GS score) (OR 1.092 [95% CI 1.032-1.156]) were independent risk factors for predicting depression in RA. Disease duration (OR 0.983 [95% CI 0.970-0.997]), HAQ-DI (OR 1.069 [95% CI 1.002-1.141]) and GS score (OR 1.073 [95% CI 1.005-1.141]) were independent risk factors for predicting anxiety in RA patients.

Conclusion:

Mood disorders were almost doubled in frequency in early RA patients than non-early RA patients. RA Patients with short disease duration, high HAQ-DI and high GS score were more likely to be in depression and anxiety. More attention is needed to the psychological status of RA patients, especially those at an early stage, with poor physical function and severe synovitis.

References:

[1]Sturgeon JA, Finan PH, Zautra AJ. Affective disturbance in rheumatoid arthritis: psychological and disease-related pathways. Nat Rev Rheumatol 2016;12(9):532-42.

[2]Bacconnier L, Rincheval N, Flipo RM, et al. Psychological distress over time in early rheumatoid arthritis: results from a longitudinal study in an early arthritis cohort. Rheumatology (Oxford) 2015; 54(3): 520-7.

Acknowledgments:

The authors thank all the colleagues in our department.

Disclosure of Interests:

None declared

[Features of gut microbiota in patients with idiopathic Parkinson's disease]

Objectives: To investigate whether the fecal microbiome of Parkinson's disease patients differs from that of healthy population and explore the pathogenesis and new treatment of idiopathic Parkinson's disease. Methods: A total of 30 patients diagnosed as idiopathic Parkinson disease (PD group) in Beijing Friendship Hospital between April 2017 and June 2018 were enrolled and 30 healthy controls (NC group) were recruited at the same time.Medical records and score of unified Parkinson's disease rating scale (UPDRS) were collected and fresh fecal samples were obtained and stored in refrigerator (-80℃). The microbial compositions of fecal samples were investigated by 16S rRNA gene sequencing targeting the V3-V4 region. The taxa abundance and microbial composition were tested. Results: There was no difference of age and sex in PD and NC groups. Chao1 and Shannon indexes tended to be higher in PD group, yet failed to reach statistic significance (P=0.115 and 0.052). Relative abundance of gut microbiota differed in each taxonomic category. The relative abundance of Firmicutes in PD group was 53.6%(41.7%-64.8%), while that of Bacteroidetes in NC group was 51.7%(31.7%-65.3%). The ratios of Firmicutes to Bacteroidetes were significantly different between the two groups (1.6(0.9-3.4) vs 0.7(0.5-1.4), P=0.001). In Clostridia, Bacilli and Erysipelotrichia of Firmicutes, the relative abundances of Clostridiales, Christensenellaceae, Peptoclostridium, Lactobacillus and Erysipelatoclostridium were higher in PD group (P=0.024, 0.046, 0.036, 0.022 and 0.037). The relative abundance of Prevotella of Bacteroidales, was lower in PD group, yet failed to reach statistic significance (P=0.121). The relative abundances of Alistipes of Rikenellaceae and Butyricimonas of Marinilabiliales in PD group were significantly higher than those in NC group (P=0.047 and 0.033). The relative abundance of Bifidobacterium of Actinobacteria was significanly higher in PD group when compared with NC group (P=0.009). Despite the relatively low abundance, Akkermansia of Verrucomicrobia was significantly higher in PD group than in NC group (P=0.025). Conclusion: The structures of the fecal microbiota differ significantly between PD patients and healthy controls.

[Effects of simultaneous nasometer and nasopharyngeal fibroscopic examination on the value of nasalization rate in cleft palate patients]

Objective: To evaluate the changes of nasalance when cleft palate patients examined using nasometer and nasopharyngeal fiberscopy simultaneously. Methods: A total of 33 cleft palate patients from August 2004 to August 2010 were examined by nasopharyngeal fiber endoscopy and nasometer simultaneously. The nasalance of 33 voice samples was compared under two situations only nasometer and nasometer with nasopharyngeal fiberscopy. Results: The statistics showed that the nasalance value of 33 voice samples of 33 participants under different situations were no significant difference through paired t-test (P>0.05). Conclusions: Nasopharyn fiber endoscopy had no influence to the results of the nasalance value under simultaneous condition. The nasometer and nasopharyn fiber endoscopy can be applied to evaluate the velopharyngeal function of cleft palate patients simultaneously.

[The diagnostic utility of thin-slice CT navigation combined with radial endobronchial ultrasound for peripheral pulmonary lesions]

Objective: To evaluate the diagnostic value of thin-slice CT navigation combined with radial endobronchial ultrasound in peripheral lung lesions. Methods: The clinical data of patients with peripheral lung lesions diagnosed by thin-slice CT navigation combined with radial endobronchial ultrasound in National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College from November 2015 to August 2018 were retrospectively analyzed. The success rate of thin-slice CT for guiding radial endobronchial ultrasound was statistically analyzed, and the diagnostic rate, sensitivity and specificity of thin-slice CT combined with radial endobronchial ultrasound were analyzed. Results: 140 consecutive patients with 145 lesions were included, 139 lesions in 136 patients were found by thin-layer CT guidance, the success rate was 95.9%; 137 lesions in 135 patients were examined by histology and/or cytology, and 106 lesions were finally diagnosed, the diagnostic rate was 77.37%; and the diagnosis sensitivity and specificity was 88.45% and 99.96%. Histological and cytological diagnostic rate, sensitivity and specificity was 72.18% versus 63.50%, 70.58% versus 66.85%, 100% versus 88.23%, respectively. Factors influencing the diagnostic rate of thin-slice CT navigation combined with radial endobronchial ultrasound include the relationship between the lesion and the target bronchus, the location of the probe and the lesion, and the size of the lesion, and the difference between the farthest generation of bronchoscopy insertion and the bronchial generation of lesions. Five patients had mild bleeding and one ultrasonic probe was damaged. Conclusion: Thin-slice CT has a higher positive rate in guiding peripheral lung lesions with radial ultrasound, and this method has a higher diagnostic value for peripheral lung lesions.

[A clinicopathological classification analysis of ocular mass lesions in 7 910 cases]

Objective: To investigate the anatomical region, histopathological classification and histogensis distribution of ocular mass lesions in South China. Methods: Retrospective cases study. The clinical and pathological data of 7 910 samples with ocular (adnexal) tumors or proliferative lesions which were examined from January 2000 to May 2018 were retrospectively retrieved. The constituent ratios of ocular mass lesions in different anatomical regions and histogenesis have been analyzed. Results: There were 3 445 males and 4 465 females aged from 3 months to 106 years. Classification by anatomical region. Eyelid 4 976 cases (62.9%): benign-pigmented nevus (31.7%, 1 342/4 235), squamous cell papilloma (12.3%, 519/4 235), seborrheic keratosis (9.4%, 396/4 235); malignant-basal cell carcinoma (48.5%, 359/741), sebaceous gland carcinoma (34.4%, 255/741), squamous cell carcinoma (12.3%, 91/741). Ocular surface 1 449 cases (18.3%): benign-pigmented nevus (26.6%, 359/1 348), squamous cell papilloma (12.8%, 173/1 348); malignant-lymphoma (34.7%, 35/101), squamous cell carcinoma (30.7%, 31/101).Orbit 1 485 cases (18.8%): benign-hemangioma (28.5%, 332/1 167), lacrimal gland (duct) cyst(13.2%, 154/1 167); malignant-lymphoma (44.7%, 142/318), adenoid cystic carcinoma (10.1%, 32/318). Classification by histogenesis: epithelial 2 145 cases (27.1%), cutaneous appendages 378 cases (4.8%), cystoid 1 068 cases (13.5%), mesenchymal 748 cases (9.5%), lymph-hematopoietic 225 cases (2.8%), neurogenic 31 cases (0.4%), melanocytic 1 765 cases (22.3%), others 1 550 cases (19.6%). Conclusions: Over the past 18 years, the ocular tumors identified at the Second Affiliated Hospital, Zhejiang University School of Medicine most frequently occur in eyelid and originate from epithelium. The most common types are as followings. Benign lesions: pigmented nevus, squamous cell papilloma are the most common types for eyelid and ocular surface, whereas hemangioma, lacrimal gland (duct) cyst and epidermoid cyst are the most common types for orbit. Malignant cancers: basal cell carcinoma is the most prevalent disease in eyelid, whereas lymphoma occurs more frequently in ocular surface and orbit. (Chin J Ophthalmol, 2019, 55: 847-853).

Disruption of Core 1-mediated O-glycosylation oppositely regulates CD44 expression in human colon cancer cells and tumor-derived exosomes

Aberrant O-glycosylation truncates O-glycans and is known to be closely associated with colorectal cancer (CRC), a major gastrointestinal tumor. CD44 is one of the highly post-transcriptionally modified O-glycoproteins participating in a series of physiological and pathobiological processes. In this research, we aimed to investigate whether CD44 expression in cells and exosomes can be influenced by disruption of Core 1-mediated O-glycosylation. Exosomes derived from LS174T and LSC human colon cancer cell lines were isolated from cell culture supernatant and pulled down using tetraspanin-specific antibody CD63 immunoaffinity magnetic beads. Identifications have been performed via transmission electron microscopy (TEM) and flow cytometry. CD63 immunoaffinity-purified exosomes are examined for CD44 expression by flow cytometric analyses. The percentages of CD44 in exosomes derived from abnormally O-glycosylated cells are significantly higher compared with those derived from normal ones, however, which is surprisingly contrary to the cellular expression levels of CD44. The secretion of truncated glycoproteins to the extracellular environment via microvesicles may be most likely its underlying mechanism. CD44 in exosomes might be a potential biomarker of aberrant O-glycosylation. This is the first study indicating that aberrant O-glycosylation can affect expression or delivery of O-glycoproteins via exosomes, which provides us some new sights in therapeutic strategies for human colon cancer.