Social Hypersensitivity in Bipolar Disorder: An ERP Study

Introduction

Bipolar Disorder (BD) is a disorder in which cognitive function is relatively preserved but social functioning is markedly impaired. Interestingly, studies on BD show that the patients have a strong desire for social rewards. Hypersensitivity to social rewards in BD has not yet been sufficiently examined through experimental methods, although recent studies have pointed out that their reward hypersensitivity is the cause of symptoms and dysfunction.

Objectives

The purpose of this study was to investigate whether patients with BD are hypersensitive to social rewards using the social value capture task.

Methods

Groups of 25 BD and healthy control (HC) each completed the social value attention capture task. This task consists of a practice phase in which associative learning of social rewards with specific stimuli occurs, and a test phase in which the stimuli associated with rewards appear as distractors during the participants performing a selective attention task. We also recorded event-related potential (ERP) in the practice phase in order to investigate BDs’ cortical activity for social reward.

Results

showed significantly decreased accuracy rate and increased reaction time in the high social reward-associated distractor trials of the test phase in the BD compared to the HC. As a result of analysis in ERP components, P3 amplitude for social reward was significantly greater in the BD than the HC.

Conclusions

BD patients exhibit behavioral and physiological hypersensitivity to social rewards that might contribute to social dysfunction.

Disclosure

No significant relationships.

POS0211 ASSOCIATION BETWEEN CARDIOVASCULAR OUTCOME AND RHEUMATOID ARTHRITIS: NATIONWIDE POPULATION-BASED COHORT STUDY

Background

Many studies have shown increased risk of cardiovascular disease (CVD) in patients with rheumatoid arthritis (RA). Despite a growing burden posed by CVD in RA patients, large scale studies which examined the association between characteristic of RA patients and CVD risks, and studies which adjusted for various confounding factors are lacking.

Objectives

This study aimed to investigate the association between CVD risk and RA in large-scale, nationwide cohort of Korean population, and to examine which characteristics of RA patients are associated with increased CVD risk.

Methods

We enrolled 136,469 patients with RA who participated in national health examinations within 2 years of RA diagnosis between 2010 and 2017 and non-RA controls matched by age and sex (n= 682,345). The cohort was followed until the end of 2019. The outcome was occurrence of myocardial infarction (MI) or stroke. MI was defined as one hospitalization or two outpatient visit with ICD-10-CM codes I21 or I22. Stroke was defined as one hospitalization with ICD-10-CM codes I63 or I64 and a claim for brain imaging (CT or MRI). The Cox proportional hazard model and Kaplan Meier curve were used for the analysis.

Results

Mean follow up duration was 4.7 years. The incidence rate of CVD was higher in RA group than control (MI: 3.20 vs 2.08; stroke: 2.84 vs 2.33 per 1,000 person-years). The risk of CVD was higher in RA patients. (MI: adjusted HR 1.54, 95% CI 1.46-1.61; Stroke: adjusted HR 1.22, 95% CI 1.16-1.28). The association between RA and CVD was prominent in female (MI: adjusted HR 1.41 in male, 1.60 in female, p for interaction = 0.0293; Stroke: adjusted HR 1.13 in male, 1.27 in female, p for interaction = 0.03) and younger-age subgroups (MI: adjusted HR 2.9 in <40 years, 1.52 in 40-64 years, 1.51 in ≥65 years, p for interaction<0.0001; Stroke: adjusted HR 2.35 in <40 years, 1.21 in 40-64 years, 1.21 in ≥65 years, p for interaction = 0.0100) after adjusting for confounding variables. The association between RA and risk of MI was significant in those without DM. (adjusted HR 1.30 in DM, 1.61 in non-DM, p for interaction = 0.0005)

Conclusion

RA patients had increased risk of CVD events compared to age- and sex-matched control group, and this association was stronger in female and younger-age subgroups. Therefore appropriate screening for CVD would be important in all RA patients including female and younger patients.

Disclosure of Interests

None declared

POS1176 EFFECT OF LIFESTYLE CHANGE ON INCIDENT GOUT: A NATIONWIDE POPULATION-BASED COHORT OF YOUNG MEN

Background

Although gout in young people is increasing, studies on the risk factors for gout in these people are lacking.

Objectives

In this study, we explored the risk factors of gout and effect of lifestyle change on the development of gout in large nationwide population-based cohort of young men.

Methods

Between 2009–2012, men aged 20–39 years who participated in two national health examinations at 2-year intervals were included in the study. The outcome was occurrence of gout, which was defined using the diagnosis code of gout (ICD-10 code M10) in the claims database. Cox proportional hazard model was used to evaluate the association between incident gout and baseline factors or lifestyle change.

Results

A total of 1,977,849 subjects were included in the study, and the mean follow-up period was 5.5 ± 4.3 years. Gout occurred in 38,839 subjects (incidence rate = 3.59/1,000 person-years). A high body mass index, alcohol drinking, and comorbidities such as hypertension, diabetes mellitus, and hyperlipidemia were associated with an increased risk of gout. Among lifestyle factors, change in obesity had the greatest impact on gout, followed by drinking. Development of obesity increased the risk of gout by 1.75 times (95% CI 1.68–1.81), and recovery from obesity decreased the risk of gout by 40% (aHR 0.60, 95% CI 0.57–0.64). Heavy drinking increased the risk of gout by 38% (aHR 1.38, 95% CI 1.33–1.43), and stopping heavy drinking decreased the risk of gout by 11% (aHR 0.89, 95% CI 0.85–0.94). The effect of obesity on gout was evident in the younger age group, and the effect of heavy drinking on gout was weak in the severely obese group.

Conclusion

Obesity and heavy drinking in young men are important modifiable risk factors for gout. Therefore, the management of these risk factors in young men should be emphasized.

Disclosure of Interests

None declared

Longitudinal effects of antidepressant treatment on resting state functional connectivity in adolescents with major depressive disorder

Introduction

Adolescents with major depressive disorder (MDD) often show reduced prefrontal functional connectivity with the subcortical regions than healthy controls (HC) (Tang et al., 2018). However, relatively little is known about longitudinal effects of antidepressant (AD) treatment on resting state functional connectivity (RSFC) in the prefrontal cortex (PFC).

Objectives

This study aimed to investigate abnormal PFC RSFC in MDD adolescents compared to HC and longitudinal effects of AD on PFC RSFC.

Methods

This study included 59 adolescents with MDD and 43 HC. MDD adolescents were treated with escitalopram in an 8 week, open-label trial. The treatment outcome was assessed by Children’s Depression Rating Scale (CDRS-R) and patients showing at least a 40% improvement in CDRS-R scores from baseline to week 8 were defined as “responders”. Functional and T1 images collected before and after treatment were processed using AFNI and Freesurfer. Our seed was the lateral PFC (LPFC, BA46). T-tests and repeated measures ANCOVAs, controlling for age and IQ, were conducted to examine abnormal PFC RSFC and longitudinal effects of AD on LPFC RSFC.

Results

Relative to HC, MDD showed increased LPFC RSFC with the posterior middle temporal gyrus (pMTG) and superior frontal cortex (SFG) involved in attentional networks. Responders showed greater changes in LPFC RSFC with the MTG and SFG after AD treatment compared to non-responders and HC (Figure 1).

Conclusions

Our finding suggests that reduced LPFC RSFC with the pMTG and SFG reflecting decreased attentional network connectivity may serve as a biomarker to predict AD treatment outcome in adolescents with MDD.

Disclosure

No significant relationships.

Hashimoto's thyroiditis on outcomes in papillary thyroid cancer revisited: experience from South East Asia

INTRODUCTION

The association between Hashimoto Thyroiditis (HT) and papillary thyroid cancer (PTC) remains uncertain. HT, the most common inflammatory condition of the thyroid, is postulated to increase the risk of PTC and yet confer cancer-retarding effects. In this study, we aim to evaluate the prevalence of HT in patients surgically treated for PTC and evaluate the long-term prognostic implications.

METHODS

This is a retrospective study of 521 patients with PTC who underwent hemi- or total thyroidectomy between January 2000 and December 2018 at a tertiary referral centre. Patients were categorised into two group: group A (n=402) consists of patients with PTC without HT, whereas group B (n=119) consists of patients with PTC and HT. Demographic and clinicopathological details, recurrence rates and overall survival were collected. Univariate and multivariate analyses were performed to evaluate for clinical factors associated with HT.

RESULTS

A total of 521 patients with a mean age of 46.7 years were evaluated. HT was detected in 22.8% of patients with PTC. On multivariate analysis, presence of HT was associated with a lower incidence of extrathyroidal extension (hazard ratio: 0.59, 95%confidence interval 0.37-0.95). Also, patients with HT tend to have fewer cycles of radioactive iodine and correspondingly have excellent response to treatment. However, no differences in recurrence rates and overall survival were detected.

CONCLUSIONS

One-fifth of patients with PTC have coexisting HT. These patients tend to have less-aggressive tumour features such as extrathyroidal extension. However, the effect of HT on recurrence and overall survival appears to be inconsequential clinically.

POS0803 INCREASED RISK OF MALIGNANCY IN PATIENTS WITH TAKAYASU’S ARTERITIS: A POPULATION-BASED COHORT STUDY IN KOREA

Background

Recent studies have identified neoplasms as the second most common cause of death in patients with Takayasu’s arteritis (TAK) [1,2]. Various autoimmune diseases are related to the increased rates of malignancies. Despite conflicting data, most studies concluded that there is no increase in the risk of malignancies in giant cell arteritis [3]. In the case of TAK, there have been few reports of malignancies [4]. However, only one study compared the risk of malignancies in TAK to that of the general population [5]. Because the previous study only included 180 patients with TAK from single center, no definite conclusion could be drawn. Here, we evaluated the relative risk of malignancies in patients with TAK and compared them with the general population using the medical insurance data of South Korea.

Objectives

This study aimed to evaluate the relative risk of malignancy in patients with TAK compared to that in the general population.

Methods

This retrospective nationwide cohort study used data from the Korean Health Insurance Review and Assessment Service database. All newly diagnosed patients with Takayasu’s arteritis were identified between January 2009 and December 2019. They were observed until the diagnosis of malignancy, death, or end of the observational period, December 2020. The occurrence of malignancy was regarded as the first claim under ICD-10 codes, including C00–97, D46, and D47.1, according to the incidence of malignancy classification published by the National Cancer Registry (NCR). The incidence of malignancy in the general population was retrieved from the 2014 NCR, which collects the annual incidence of malignancies in the entire population of South Korea. The standardized incidence ratios (SIRs) of the overall and site-specific malignancies were estimated and compared with the incidence of cancer in the general population.

Results

We identified 1,449 newly diagnosed patients with Takayasu’s arteritis during the observational period (9,196 person-years). A total of 74, 66, and 8 patients had overall, solid, and hematologic malignancies, respectively. The risks of overall (SIR, 1.62; 95% confidence interval [CI], 1.27–2.03), solid (SIR, 2.04; 95% CI, 1.56–2.61), and hematologic (SIR, 4.05; 95% CI, 3.72–7.98) malignancies were increased compared to those in the general population. In solid malignancies, breast (SIR, 2.07; 95% CI, 1.16–3.42), ovarian (SIR, 4.45; 95% CI, 1.21–11.39), and major salivary gland (SIR, 19.04; 95% CI, 2.31–68.76) cancers had an increased risk. In hematologic malignancies, the risk of myelodysplasia increased (SIR, 18.02; 95% CI, 3.72–52.66). Immunosuppressive agent use was not associated with malignancy. There was no specific period when cancer more frequently occurred.

Conclusion

An increased risk of malignancy was observed in patients with Takayasu’s arteritis compared to that in the general population in this large-scale nationwide population study of Korean health insurance data.

References

[1]Garen T, Lerang K, Hoffmann-Vold A-M, Andersson H, Midtvedt Ø, Brunborg C, et al. Mortality and causes of death across the systemic connective tissue diseases and the primary systemic vasculitides. Rheumatology. 2018;58(2):313-20.

[2]Jang SY, Park TK, Kim D-K. Survival and causes of death for Takayasu’s arteritis in Korea: A retrospective population-based study. International Journal of Rheumatic Diseases. 2021;24(1):69-73.

[3]Hill CL, Cole A, Rischmueller M, Dodd T, Coleman M, Tucker G, et al. Risk of cancer in patients with biopsy-proven giant cell arteritis. Rheumatology (Oxford). 2010;49(4):756-9.

[4]Bicakcigil M, Aksu K, Kamali S, Ozbalkan Z, Ates A, Karadag O, et al. Takayasu’s arteritis in Turkey - clinical and angiographic features of 248 patients. Clin Exp Rheumatol. 2009;27(1 Suppl 52):S59-64.

[5]Park JK, Choi IA, Lee EY, Song YW, Lee EB. Incidence of malignancy in Takayasu arteritis in Korea. Rheumatol Int. 2014;34(4):517-21.

Disclosure of Interests

None declared

Observation of B 0 → ψ (2S)K S 0 π + π - and B s 0 → ψ (2S)K S 0 decays

Using a data sample of s = 13 TeV proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of 103 fb - 1 , the B s 0 → ψ ( 2S ) K S 0 and B 0 → ψ ( 2S ) K S 0 π + π - decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to B ( B s 0 → ψ ( 2S ) K S 0 ) / B ( B 0 → ψ ( 2S ) K S 0 ) = ( 3.33 ± 0.69 ( stat ) ± 0.11 ( syst ) ± 0.34 ( f s / f d ) ) × 10 - 2 and B ( B 0 → ψ ( 2S ) K S 0 π + π - ) / B ( B 0 → ψ ( 2S ) K S 0 ) = 0.480 ± 0.013 ( stat ) ± 0.032 ( syst ) , where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of B s 0 and B 0 mesons, f s / f d .

Response After Repeated Ketamine Injections in a Rat Model of Neuropathic Pain

Ketamine, an N-methyl-D-aspartate antagonist, reduces pain by decreasing central sensitization and pain windup. However, chronic ketamine use can cause tolerance, dependency, impaired consciousness, urinary symptoms, and abdominal pain. This study aimed to investigate the effects of repeated ketamine injections and ketamine readministration after discontinuation in a rat model of neuropathic pain. To induce neuropathic pain, partial sciatic nerve ligation (PSNL) was performed in 15 male Wistar rats, and these animals were divided into three groups: PSNL (control), PSNL + ketamine 5 mg/kg (K5), and PSNL + ketamine 10 mg/kg (K10; n=5 each). Ketamine was injected intraperitoneally daily for 4 weeks, discontinued for 2 weeks, and then readministered for 1 week. Following PSNL, the mechanical withdrawal threshold was determined weekly using the Von Frey. The K10 group showed a significant increase in the mechanical withdrawal threshold, presented here as the target force (in g), at 21 and 28 days compared to the time point before ketamine injection (mean±SE, 276.0±24.0 vs. 21.6±2.7 and 300.0±0.0 vs. 21.6±2.7, respectively; P<0.01) and at 14, 21, and 28 days compared to the control group (108.2±51.2 vs. 2.7±1.3, 276.0±24.0 vs. 2.5±1.5, and 300.0±0.0 vs. 4.0±0.0, respectively; P<0.05). However, in the K10 group, the ketamine effects decreased significantly at 7 days after readministration compared to those after 28 days of repeated injections (P<0.05). In the K10 group, repeated ketamine injections showed a significant increase in antinociceptive effect for >2 weeks, but this ketamine effect decreased after drug readministration.

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AT, Presilla M, Ronchese P, Rossin R, Simonetto F, Strong G, Tosi M, YARAR H, Zanetti M, Zotto P, Zucchetta A, Zumerle G, Aimè C, Braghieri A, Calzaferri S, Fiorina D, Montagna P, Ratti SP, Re V, Ressegotti M, Riccardi C, Salvini P, Vai I, Vitulo P, Biasini M, Bilei GM, Ciangottini D, Fanò L, Lariccia P, Mantovani G, Mariani V, Menichelli M, Moscatelli F, Piccinelli A, Rossi A, Santocchia A, Spiga D, Tedeschi T, Androsov K, Azzurri P, Bagliesi G, Bertacchi V, Bianchini L, Boccali T, Castaldi R, Ciocci MA, Dell’Orso R, Domenico MRD, Donato S, Giannini L, Giassi A, Grippo MT, Ligabue F, Manca E, Mandorli G, Messineo A, Palla F, Ramirez-Sanchez G, Rizzi A, Rolandi G, Chowdhury SR, Scribano A, Shafiei N, Spagnolo P, Tenchini R, Tonelli G, Turini N, Venturi A, Verdini PG, Cavallari F, Cipriani M, Re DD, Marco ED, Diemoz M, Longo E, Meridiani P, Organtini G, Pandolfi F, Paramatti R, Quaranta C, Rahatlou S, Rovelli C, Santanastasio F, Soffi L, Tramontano R, Amapane N, Arcidiacono R, Argiro S, Arneodo M, Bartosik N, Bellan R, Bellora A, Antequera JB, Biino C, Cappati A, Cartiglia N, Cometti S, Costa M, Covarelli R, Demaria N, Kiani B, Legger F, Mariotti C, Maselli S, Migliore E, Monaco V, Monteil E, Monteno M, Obertino MM, Ortona G, Pacher L, Pastrone N, Pelliccioni M, Angioni GLP, Ruspa M, Salvatico R, Siviero F, Sola V, Solano A, Soldi D, Staiano A, Tornago M, Trocino D, Belforte S, Candelise V, Casarsa M, Cossutti F, Da Rold A, Ricca GD, Vazzoler F, Dogra S, Huh C, Kim B, Kim DH, Kim GN, Lee J, Lee SW, Moon CS, Oh YD, Pak SI, Radburn-Smith BC, Sekmen S, Yang YC, Kim H, Moon DH, Francois B, Kim TJ, Park J, Cho S, Choi S, Go Y, Ha S, Hong B, Lee K, Lee KS, Lim J, Park J, Park SK, Yoo J, Goh J, Gurtu A, Kim HS, Kim Y, Almond J, Bhyun JH, Choi J, Jeon S, Kim J, Kim JS, Ko S, Kwon H, Lee H, Lee K, Lee S, Nam K, Oh BH, Oh M, Oh SB, Seo H, Yang UK, Yoon I, Jeon D, Kim JH, Ko B, Lee JSH, Park IC, Roh Y, Song D, Watson IJ, Yoo HD, Choi Y, Hwang C, Jeong Y, Lee H, Lee Y, Yu I, 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D, Benelli G, Burkle B, Coubez X, Cutts D, Duh YT, Hadley M, Heintz U, Hogan JM, Kwok KHM, Laird E, Landsberg G, Lau KT, Lee J, Narain M, Sagir S, Syarif R, Usai E, Wong WY, Yu D, Zhang W, Band R, Brainerd C, Breedon R, De La BarcaSanchez MC, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Flores C, Funk G, Jensen F, Ko W, Kukral O, Lander R, Mulhearn M, Pellett D, Pilot J, Shi M, Taylor D, Tos K, Tripathi M, Yao Y, Zhang F, Bachtis M, Cousins R, Dasgupta A, Hamilton D, Hauser J, Ignatenko M, Lam T, Mccoll N, Nash WA, Regnard S, Saltzberg D, Schnaible C, Stone B, Valuev V, Burt K, Chen Y, Clare R, Gary JW, Hanson G, Karapostoli G, Long OR, Manganelli N, Negrete MO, Paneva MI, Si W, Wimpenny S, Zhang Y, Branson JG, Chang P, Cittolin S, Cooperstein S, Deelen N, Duarte J, Gerosa R, Gilbert D, Krutelyov V, Letts J, Masciovecchio M, May S, Padhi S, Pieri M, Sharma V, Tadel M, Würthwein F, Yagil A, Amin N, Campagnari C, Citron M, Dorsett A, Dutta V, Incandela J, Marsh B, Mei H, Ovcharova A, Qu H, Quinnan M, Richman J, Sarica U, Stuart D, Wang S, Bornheim A, Cerri O, Dutta I, Lawhorn JM, Lu N, Mao J, Newman H, Ngadiuba J, Nguyen TQ, Pata J, Spiropulu M, Vlimant JR, Wang C, Xie S, Zhang Z, Zhu RY, Alison J, Andrews MB, Ferguson T, Mudholkar T, Paulini M, Sun M, Vorobiev I, Cumalat JP, Ford WT, MacDonald E, Mulholland T, Patel R, Perloff A, Stenson K, Ulmer KA, Wagner SR, Alexander J, Cheng Y, Chu J, Cranshaw DJ, Datta A, Frankenthal A, Mcdermott K, Monroy J, Patterson JR, Quach D, Ryd A, Sun W, Tan SM, Tao Z, Thom J, Wittich P, Zientek M, Albrow M, Alyari M, Apollinari G, Apresyan A, Apyan A, Banerjee S, Bauerdick LAT, Beretvas A, Berry D, Berryhill J, Bhat PC, Burkett K, Butler JN, Canepa A, Cerati GB, Cheung HWK, Chlebana F, Cremonesi M, Elvira VD, Freeman J, Gecse Z, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Harris RM, Hasegawa S, Heller R, Herwig TC, Hirschauer J, Jayatilaka B, Jindariani S, Johnson M, Joshi U, Klabbers P, Klijnsma T, Klima B, Kortelainen MJ, Lammel S, Lincoln D, Lipton R, Liu M, Liu T, Lykken J, Maeshima K, Mason D, McBride P, Merkel P, Mrenna S, Nahn S, O’Dell V, Papadimitriou V, Pedro K, Pena C, Prokofyev O, Ravera F, Hall AR, Ristori L, Schneider B, Sexton-Kennedy E, Smith N, Soha A, Spalding WJ, Spiegel L, Stoynev S, Strait J, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Weber HA, Woodard A, Acosta D, Avery P, Bourilkov D, Cadamuro L, Cherepanov V, Errico F, Field RD, Guerrero D, Joshi BM, Kim M, Konigsberg J, Korytov A, Lo KH, Matchev K, Menendez N, Mitselmakher G, Rosenzweig D, Shi K, Sturdy J, Wang J, Wang S, Zuo X, Adams T, Askew A, Diaz D, Habibullah R, Hagopian S, Hagopian V, Johnson KF, Khurana R, Kolberg T, Martinez G, Prosper H, Schiber C, Yohay R, Zhang J, Baarmand MM, Butalla S, Elkafrawy T, Hohlmann M, Noonan D, Rahmani M, Saunders M, Yumiceva F, Adams MR, Apanasevich L, Gonzalez HB, Cavanaugh R, Chen X, Dittmer S, Evdokimov O, Gerber CE, Hangal DA, Hofman DJ, Mills C, Oh G, Roy T, Tonjes MB, Varelas N, Viinikainen J, Wang X, Wu Z, Ye Z, Alhusseini M, Dilsiz K, Durgut S, Gandrajula RP, Haytmyradov M, Khristenko V, Köseyan OK, Merlo JP, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Snyder C, Tiras E, Wetzel J, Amram O, Blumenfeld B, Corcodilos L, Eminizer M, Gritsan AV, Kyriacou S, Maksimovic P, Mantilla C, Roskes J, Swartz M, Vámi TÁ, Barrera CB, Baringer P, Bean A, Bylinkin A, Isidori T, Khalil S, King J, Krintiras G, Kropivnitskaya A, Lindsey C, Minafra N, Murray M, Rogan C, Royon C, Sanders S, Schmitz E, Takaki JDT, Wang Q, Williams J, Wilson G, Duric S, Ivanov A, Kaadze K, Kim D, Maravin Y, Mitchell T, Modak A, Mohammadi A, Rebassoo F, Wright D, Adams E, Baden A, Baron O, Belloni A, Eno SC, Feng Y, Hadley NJ, Jabeen S, Jeng GY, Kellogg RG, Koeth T, Mignerey AC, Nabili S, Seidel M, Skuja A, Tonwar SC, Wang L, Wong K, Abercrombie D, Allen B, Bi R, Brandt S, Busza W, Cali IA, Chen Y, D’Alfonso M, Ceballos GG, Goncharov M, Harris P, Hsu D, Hu M, Klute M, Kovalskyi D, Krupa J, Lee YJ, Luckey PD, Maier B, Marini AC, Mcginn C, Mironov C, Narayanan S, Niu X, Paus C, Rankin D, Roland C, Roland G, Shi Z, Stephans GSF, Sumorok K, Tatar K, Velicanu D, Wang J, Wang TW, Wang Z, Wyslouch B, Chatterjee RM, Evans A, Hansen P, Hiltbrand J, Jain S, Krohn M, Kubota Y, Lesko Z, Mans J, Revering M, Rusack R, Saradhy R, Schroeder N, Strobbe N, Wadud MA, Acosta JG, Oliveros S, Bloom K, Chauhan S, Claes DR, Fangmeier C, Finco L, Golf F, Fernández JRG, Kravchenko I, Siado JE, Snow GR, Tabb W, Yan F, Agarwal G, Bandyopadhyay H, Harrington C, Hay L, Iashvili I, Kharchilava A, McLean C, Nguyen D, Pekkanen J, Rappoccio S, Roozbahani B, Alverson G, Barberis E, Freer C, Haddad Y, Hortiangtham A, Li J, Madigan G, Marzocchi B, Morse DM, Nguyen V, Orimoto T, Parker A, Skinnari L, Tishelman-Charny A, Wamorkar T, Wang B, Wisecarver A, Wood D, Bhattacharya S, Bueghly J, Chen Z, Gilbert A, Gunter T, Hahn KA, Odell N, Schmitt MH, Sung K, Velasco M, 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Garcia-Bellido A, Hindrichs O, Khukhunaishvili A, Ranken E, Taus R, Chiarito B, Chou JP, Gandrakota A, Gershtein Y, Halkiadakis E, Hart A, Heindl M, Hughes E, Kaplan S, Karacheban O, Laflotte I, Lath A, Montalvo R, Nash K, Osherson M, Salur S, Schnetzer S, Somalwar S, Stone R, Thayil SA, Thomas S, Wang H, Acharya H, Delannoy AG, Spanier S, Bouhali O, Dalchenko M, Delgado A, Eusebi R, Gilmore J, Huang T, Kamon T, Kim H, Luo S, Malhotra S, Mueller R, Overton D, Perniè L, Rathjens D, Safonov A, Akchurin N, Damgov J, Hegde V, Kunori S, Lamichhane K, Lee SW, Mengke T, Muthumuni S, Peltola T, Undleeb S, Volobouev I, Wang Z, Whitbeck A, Appelt E, Greene S, Gurrola A, Janjam R, Johns W, Maguire C, Melo A, Ni H, Padeken K, Romeo F, Sheldon P, Tuo S, Velkovska J, Arenton MW, Cox B, Cummings G, Hakala J, Hirosky R, Joyce M, Ledovskoy A, Li A, Neu C, Tannenwald B, Wang Y, Wolfe E, Xia F, Karchin PE, Poudyal N, Thapa P, Black K, Bose T, Buchanan J, Caillol C, Dasu S, De Bruyn I, Everaerts P, Galloni C, He H, Herndon M, Hervé A, Hussain U, Lanaro A, Loeliger A, Loveless R, Sreekala JM, Mallampalli A, Pinna D, Savin A, Shang V, Sharma V, Smith WH, Teague D, Trembath-reichert S, Vetens W. Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton-proton collisions at s = 13 TeV

A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton-proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137 fb - 1 , at a center-of-mass energy s = 13 TeV . No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.

Carbon footprint and net carbon gain of major long-term cropping systems under no-tillage

Due to increased contribution from agriculture sector to total greenhouse gas emissions, there is need to study the ability of no-tilled diverse cropping systems including crop sequences and bio-covers to mitigate C equivalent emissions. Thus, C-footprint was calculated for a long-term experiment at the University of Tennessee's Research and Education Center in Milan with six-crop sequences: continuous cotton (Gossypium hirsutum L.), cotton-corn (Zea mays L.), continuous corn, corn-soybean (Glycine max L.), continuous soybean, and soybean-cotton interacted with four bio-covers: poultry litter, hairy vetch (Vicia villosa), winter wheat (Triticum aestivum), and fallow control with three replicates in a strip-plot design. During the experiment duration (2002-2017), field inputs (fertilizers, pesticides, and machinery used for planting, chemical applications, and harvesting) and outputs (crop yield, aboveground, and belowground residue) were assessed for each crop sequence/bio-cover combination to calculate total C equivalence of inputs and outputs, net C gain, C footprint per kg yield, sustainability index, and nitrous oxide emissions. For continuous corn, C-based input emissions were significantly higher by 0.28-0.62 Mg CO₂ eq. ha^-1 yr^-1 than all other sequences, however, a greater net C gain (5.4 Mg C eq. ha^-1 yr^-1) was also observed due to increased crop yield, aboveground and belowground residues. Poultry litter application resulted in lower C-footprint (1.59-2.09 kg CO₂ eq. kg^-1 yield) than hairy vetch, wheat, and fallow under all crop sequences. Hairy vetch also lowered C-footprint per kg yield (∼2-14%) when compared with wheat under continuous systems of corn, soybean, and cotton, and cotton-corn rotation. Poultry litter application increased sustainability index (23-45) of all cropping sequences compared with other bio-covers. Hairy vetch improved sustainability index of corn including cropping sequences as compared with wheat and fallow. Inclusion of soybean and cotton with corn significantly decreased nitrous oxide emissions by 20-25%. The major factor contributing towards C-based input emissions was N fertilizer with 68% contribution to total emissions on average. It is concluded that application of poultry litter can reduce per yield C-footprint and enhance production system sustainability compared with hairy vetch, wheat, and fallow for monocultures or rotations of corn, soybean, cotton. Additionally, hairy vetch can outperform wheat in reducing the per yield C-footprint for continuous corn/soybean/cotton, and cotton-corn rotation. Especially for corn production systems, hairy vetch can enhance sustainability index compared with wheat and fallow. In order to increase per hectare net C gain, reduce per yield C-footprint and enhance sustainability index simultaneously, integration of continuous corn or corn-soybean/cotton rotation with bio-cover poultry litter or hairy vetch may perform better than the monocultures of soybean or cotton integrated with bio-cover wheat or fallow control in the Mid-south USA.

Anaerobic digestion of untreated and treated process water from the hydrothermal carbonisation of spent coffee grounds

This study investigates the long-term performance of the mesophilic (35 °C) anaerobic mono-digestion of process waters (PW) from the hydrothermal carbonisation (HTC) of spent coffee grounds. At an organic loading rate (OLR) of 0.4 g_COD L^-1 d^-1, initial instability was seen, but after 40 days and supplementary alkalinity, the digestion stabilised with the chemical oxygen demand (COD) in the untreated PW degraded with 37.8-64.6% efficiency and the yield of methane at 0.16 L g_COD^-1. An increase in OLR to 0.8 g_COD L^-1 d^-1 caused a collapse in biogas production, and resulted in severe instability in the reactor, characterised by falling pH and an increasing volatile fatty acid concentration. Comparatively, the digestion of a treated PW (concentrated in nanofiltration and reverse osmosis after removal of the fouling fraction), at OLR between 0.4 and 0.8 g_COD L^-1 d^-1, was stable over the entire 117 days of treated PW addition, yielded methane at 0.21 L g_COD^-1 and the COD was degraded with an average efficiency of 93.5% - the highest efficiency the authors have seen for HTC PW. Further anaerobic digestion of untreated PW at an average OLR of 0.95 g_COD L^-1 d^-1 was stable for 38 days, with an average COD degradation of 69.6%, and methane production between 0.15 and 0.19 L g_COD^-1. The digestion of treated PW produced significantly higher COD degradation and methane yield than untreated PW, which is likely to be related to the removal of refractory and inhibitory organic material in the post-HTC treatment by adsorption of hydrophobic material.

Using Z Boson Events to Study Parton-Medium Interactions in Pb-Pb Collisions

The spectra measurements of charged hadrons produced in the shower of a parton originating in the same hard scattering with a leptonically decaying Z boson are reported in lead-lead nuclei (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Both Pb-Pb and pp data sets are recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 1.7  nb^{-1} and 320  pb^{-1}, respectively. Hadronic collision data with one reconstructed Z boson candidate with the transverse momentum p_{T}>30  GeV/c are analyzed. The Z boson constrains the initial energy and direction of the associated parton. In heavy ion events, azimuthal angular distributions of charged hadrons with respect to the direction of a Z boson are sensitive to modifications of the in-medium parton shower and medium response. compared to reference data from pp interactions, the results for central Pb-Pb collisions indicate a modification of the angular correlations. The measurements of the fragmentation functions and p_{T} spectra of charged particles in Z boson events, which are sensitive to medium modifications of the parton shower longitudinal structure, are also reported. Significant modifications in central Pb-Pb events compared to the pp reference data are also found for these observables.

Antibiotic resistance in patients with urinary tract infections in Pakistan

BACKGROUND: The level of antibiotic resistance of pathogens causing uncomplicated urinary tract infections (UTIs) is increasing. The 2017–2018 GLASS (Global Antimicrobial Resistance and Use Surveillance System) report indicated >70% resistance to ceftriaxone and ciprofloxacin in Escherichia coli in Pakistan.METHODS: A prospective study was conducted in the Médecins Sans Frontières (MSF) supported Timurgara District Hospital, Timurgara, Pakistan, from September 2017 to December 2018. Women aged 18–65 years presenting to the Emergency Department with symptoms of uncomplicated UTI (cystitis/pyelonephritis) were invited to participate. We conducted microbiological culture and sensitivity testing for samples with positive dipstick or nitrite test.RESULTS: Of the 200 patients who participated, 109 (54.5%) were diagnosed with pyelonephritis and 91 (45.5%) with cystitis. Forty-three samples (21.5%) were culture-positive: E. coli was isolated in 27 samples, Enterococcus spp. in 7 and Klebsiella pneumoniae in 6. Overall resistance to ciprofloxacin was observed in 51.8% of E. coli isolates, and ceftriaxone resistance in 66.7% of E. coli isolates and in 33.3% of K. pneumoniae. Resistance to fosfomycin was low (one E. coli isolate).CONCLUSIONS: This study found resistance to first- and second-line antibiotics for treating UTIs as per the MSF protocol. Heightened awareness and potential changes to local prescription practices are necessary to curb the spread of antimicrobial resistance pathogens causing UTIs.

Search for strongly interacting massive particles generating trackless jets in proton-proton collisions at s = 13 TeV

A search for dark matter in the form of strongly interacting massive particles (SIMPs) using the CMS detector at the LHC is presented. The SIMPs would be produced in pairs that manifest themselves as pairs of jets without tracks. The energy fraction of jets carried by charged particles is used as a key discriminator to suppress efficiently the large multijet background, and the remaining background is estimated directly from data. The search is performed using proton-proton collision data corresponding to an integrated luminosity of 16.1 fb - 1 , collected with the CMS detector in 2016. No significant excess of events is observed above the expected background. For the simplified dark matter model under consideration, SIMPs with masses up to 100 GeV are excluded and further sensitivity is explored towards higher masses.

Measurement of the Inclusive and Differential Higgs Boson Production Cross Sections in the Decay Mode to a Pair of τ Leptons in pp Collisions at sqrt[s]=13 TeV

Measurements of the inclusive and differential fiducial cross sections of the Higgs boson are presented, using the τ lepton decay channel. The differential cross sections are measured as functions of the Higgs boson transverse momentum, jet multiplicity, and transverse momentum of the leading jet in the event, if any. The analysis is performed using proton-proton collision data collected with the CMS detector at the LHC at a center-of-mass energy of 13  TeV and corresponding to an integrated luminosity of 138  fb^{-1}. These are the first differential measurements of the Higgs boson cross section in the final state of two τ leptons. In final states with a large jet multiplicity or with a Lorentz-boosted Higgs boson, these measurements constitute a significant improvement over measurements performed in other final states.

Joint Determination of Reactor Antineutrino Spectra from ^{235}U and ^{239}Pu Fission by Daya Bay and PROSPECT

A joint determination of the reactor antineutrino spectra resulting from the fission of ^{235}U and ^{239}Pu has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of ^{235}U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant ^{235}U and ^{239}Pu isotopes and improves the uncertainty of the ^{235}U spectral shape to about 3%. The ^{235}U and ^{239}Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the ^{235}U and ^{239}Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors.

A20 INTESTINAL SMOOTH MUSCLE AND FIBROSTENOSIS: TARGETING NR4A1 TO MODULATE PROLIFERATIVE SIGNALLING

Background

Fibrostenotic Crohn’s Disease (CD), presenting with intestinal fibrosis and stricture formation, has a substantial impact on patient quality of life. Given our poor understanding of its etiology, we lack viable preventative and therapeutic methods. While much focus has been on the fibrotic component, recent studies have implicated the role of intestinal smooth muscle cell (SMC) hyperplasia/hypertrophy in stricture formation. These data suggest targeting SMC proliferation may provide benefit for fibrostenotic CD patients. NR4A1 (nuclear receptor subfamily 4 group A member 1) is an orphan nuclear receptor that has shown to regulate inflammation in experimental models of colitis and dampen SMC proliferation and fibrotic signalling in intestinal and non-intestinal systems. Thus, we sought to characterize the role of NR4A1 in regulating proliferative signalling in intestinal SMCs to determine whether it could be a therapeutic target for fibrostenotic CD.

Aims

To determine how NR4A1 regulates intestinal SMC proliferative responses to mitogenic signalling.

Methods

Primary intestinal SMCs were isolated from the colonic tissue of Nr4a1^+/+ and Nr4a1^-/- mice. A commercially available human colonic SMC line was also used. EdU incorporation assays were used to quantify the relative proliferation of Nr4a1^+/+ and Nr4a1^-/- SMCs in their basal or stimulated state (with platelet-derived growth factor (PDGF)-BB). In addition, NR4A1 was activated using selective agonists, cytosporone-B (Csn-B) and 6-mercaptopurine (6-MP). Differences in PDGF-BB-induced intracellular signalling was determined using western blotting of phosphorylated proteins after stimulation. Quantification of PDGF receptor transcript expression in Nr4a1^+/+ and Nr4a1^-/- SMCs was done using qPCR. Finally, immunofluorescence was used to determine the localization of NR4A1 when stimulated with Csn-B, 6-MP, and/or PDGF-BB.

Results

The proliferation assays showed that Nr4a1^-/- SMCs exhibit greater proliferation at baseline and when stimulated with PDGF-BB, compared to Nr4a1^+/+ SMCs. However, this was not associated with any differences in the intracellular signalling directly downstream of PDGF receptor activation. Specifically, there were no differences in the intensity and temporal characteristics of Akt- and Erk1/2-phosphorylation between Nr4a1^+/+ and Nr4a1^-/- SMCs. Interestingly, Nr4a1^-/- SMCs had less expression of Pdgfrb, the gene encoding PDGF receptor beta, when compared to Nr4a1^+/+ SMCs. However, no changes in receptor expression were observed when SMCs were stimulated with Csn-B and 6-MP.

Conclusions

We show that NR4A1 regulates basal and PDGF-BB-induced SMC proliferation, without directly altering the intracellular signalling cascades induced by receptor activation. Our data supports NR4A1 as a target to control the aberrant SMC proliferation that contributes to fibrostenosis.

Funding Agencies

CIHR

Search for long-lived particles decaying to leptons with large impact parameter in proton-proton collisions at s = 13 Te

A search for new long-lived particles decaying to leptons using proton-proton collision data produced by the CERN LHC at s = 13 Te is presented. Events are selected with two leptons (an electron and a muon, two electrons, or two muons) that both have transverse impact parameter values between 0.01 and 10 cm and are not required to form a common vertex. Data used for the analysis were collected with the CMS detector in 2016, 2017, and 2018, and correspond to an integrated luminosity of 118 (113) fb - 1 in the e e channel ( e μ and μ μ channels). The search is designed to be sensitive to a wide range of models with displaced e μ , e e , and μ μ final states. The results constrain several well-motivated models involving new long-lived particles that decay to displaced leptons. For some areas of the available phase space, these are the most stringent constraints to date.

Postlaryngectomy supraglottic stenosis revealed by three-dimensional computed tomography reconstruction: A case report

RATIONALE

Supraglottic stenosis is a rare cause of airway obstruction. It can be induced by radiation, trauma, autoimmune diseases, or caustic exposure, and is often misdiagnosed as asthma. Detailed airway information is necessary to re-establish the normal functioning of the airway.

PATIENT CONCERNS

A 78-year-old woman with severe dyspnea and hypercarbia was scheduled for surgery to resolve airway obstruction, previously known as supraglottic stenosis.

DIAGNOSES

To determine the exact internal shape of the stenotic lesion, we reconstructed three dimensional computed tomography (CT) images depicted a tubular supraglottic stenosis.

INTERVENTIONS

The patient underwent tracheotomy under monitored anesthesia care and local anesthesia, followed by general anesthesia. For long-term management of the patient, the otorhinolaryngologist excised the supraglottic stricture via micro-laryngeal surgery using a CO2 laser and applied mitomycin to prevent further obstruction.

OUTCOMES

The patient recovered uneventfully after anesthesia, and symptom due to supraglottic stenosis was improved.

LESSONS

During airway management of patients with postlaryngectomy supraglottic stenosis, three-dimensional reconstructed computed tomography images facilitate airway configuration in addition to endoscopy and other radiological findings.

Thin-Slice Pituitary MRI with Deep Learning-Based Reconstruction for Preoperative Prediction of Cavernous Sinus Invasion by Pituitary Adenoma: A Prospective Study

BACKGROUND AND PURPOSE

Accurate radiologic prediction of cavernous sinus invasion by pituitary adenoma remains challenging. We aimed to assess whether 1-mm-slice-thickness MRI with deep learning-based reconstruction can better predict cavernous sinus invasion by pituitary adenoma preoperatively and to estimate the depth of invasion and degree of contact in relation to the carotid artery, compared with 3-mm-slice-thickness MRI.

MATERIALS AND METHODS

This single-institution, prospective study included 67 consecutive patients (mean age, 53 [SD, 12] years; 28 women), between January and August 2020, who underwent a combined contrast-enhanced T1-weighted imaging protocol of 1-mm-slice-thickness MRI + deep learning-based reconstruction and 3-mm-slice-thickness MRI. An expert neuroradiologist who was blinded to the imaging protocol determined cavernous sinus invasion using the modified Knosp classification on 1-mm-slice-thickness MRI + deep learning-based reconstruction and 3-mm-slice-thickness MRI, respectively. Reference standards were established by the consensus of radiologic, intraoperative, pathologic, and laboratory findings. The primary end point was the diagnostic performance of each imaging protocol, and the secondary end points included depth of invasion and degree of contact in relation to the carotid artery.

RESULTS

The diagnostic performance of 1-mm-slice-thickness MRI + deep learning-based reconstruction (area under the curve, 0.79; 95% CI, 0.69 - 0.89) in predicting cavernous sinus invasion by pituitary adenoma was higher than that of 3-mm-slice-thickness MRI (area under the curve, 0.61; 95% CI, 0.52-0.70; P < .001). One-millimeter-slice-thickness MRI + deep learning-based reconstruction demonstrated greater depth of invasion by pituitary adenomas from the medial intercarotid line than 3-mm-slice-thickness MRI (4.07 versus 3.12 mm, P < .001). A higher proportion of cases were in a greater degree of contact with the intracavernous ICA with 1-mm-slice-thickness MRI + deep learning-based reconstruction than with 3-mm-slice-thickness MRI (total encasement, 37.3% versus 13.4%, P < .001; >270°, 38.8% versus 16.4%, P < .001).

CONCLUSIONS

Compared with 3-mm-slice-thickness MRI, 1-mm-slice-thickness MRI + deep learning-based reconstruction showed a higher diagnostic performance in preoperatively predicting cavernous sinus invasion by pituitary adenomas and demonstrated a greater depth and degree of contact in relation to the carotid artery.

Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at sqrt[s_{NN}]=5.02 TeV

The first evidence for X(3872) production in relativistic heavy ion collisions is reported. The X(3872) production is studied in lead-lead (Pb-Pb) collisions at a center-of-mass energy of sqrt[s_{NN}]=5.02  TeV per nucleon pair, using the decay chain X(3872)→J/ψπ^{+}π^{-}→μ^{+}μ^{-}π^{+}π^{-}. The data were recorded with the CMS detector in 2018 and correspond to an integrated luminosity of 1.7  nb^{-1}. The measurement is performed in the rapidity and transverse momentum ranges |y|<1.6 and 15<p_{T}<50  GeV/c. The significance of the inclusive X(3872) signal is 4.2 standard deviations. The prompt X(3872) to ψ2S yield ratio is found to be ρ^{Pb-Pb}=1.08±0.49(stat)±0.52(syst), to be compared with typical values of 0.1 for pp collisions. This result provides a unique experimental input to theoretical models of the X(3872) production mechanism, and of the nature of this exotic state.

Validation of the Anti-Inflammatory Effect of Tenebrio Molitor Larva Oil in a Colitis Mouse Model

Ulcerative colitis is caused by various external factors and is an inflammatory disease that causes decreased intestinal function. Tenebrio molitor larvae contain more than 30 % fat, and the fat component consists of 45 % oleic acid, 20 % linoleic acid and 20 % polyunsaturated fatty acids. In this study, after administering Tenebrio molitor larva oil (TMLO) in a dextran sodium sulphate (DSS)-induced ulcerative colitis mouse model, the pathological findings and inflammatory markers of colitis were analysed to assess whether a colitis mitigation effect was achieved. In the TMLO-administered group, the colon length increased, the spleen weight decreased, and the body weight increased compared with that in the DSS group. In addition, the disease activity index level decreased, the mRNA expression level of inflammatory cytokines in the colon decreased, and the myeloperoxidase activity level significantly decreased. Also, the activity of the NF-κB pathway involved in the regulation of the inflammatory response was lower in the TMLO group than in the DSS group. Taken together, these results suggest that TMLO suppresses occurrence of acute ulcerative colitis in the DSS mouse model. Therefore, TMLO has the potential to be developed as a health food for the prevention and treatment of ulcerative colitis.

Single-shot measurement of longitudinal phase space beam profile in an electron storage ring

A novel scheme to measure the longitudinal emittance and phase space profile in an electron storage ring by using correlations between time and the vertical coordinate, and between energy and the horizontal coordinate, is proposed. This longitudinal profile measurement scheme will help to demonstrate recent results of advanced studies for manipulating the longitudinal beam profile and for investigating beam instability in an electron storage ring.