Miracle-dz/UniFAR-FTUs huggingface dataset:
Polymer dynamics via cliques: New conditions for approximations

Abstract polymer models are systems of weighted objects, called polymers, equipped with an incompatibility relation. An important quantity associated with such models is the partition function, which is the weighted sum over all sets of compatible polymers. Various approximation problems reduce to approximating the partition function of a polymer model. Central to the existence of such approximation algorithms are weight conditions of the respective polymer model. Such conditions are derived either via complex analysis or via probabilistic arguments. We follow the latter path and establish a new condition---the clique dynamics condition---, which is less restrictive than the ones in the literature. We introduce a new Markov chain where the clique dynamics condition implies rapid mixing by utilizing cliques of incompatible polymers that naturally arise from the translation of algorithmic problems into polymer models. This leads to improved parameter ranges for several approximation algorithms, such as a factor of at least $2^{1/\alpha}$ for the hard-core model on bipartite $\alpha$-expanders.
Return to Play Following Isolated and Combined Anterior Cruciate Ligament Reconstruction: 25+ Years of Experience Treating National Football League Athletes

Background: The first case series to report on return to play (RTP) in National Football League (NFL) players after primary anterior cruciate ligament (ACL) reconstruction (ACLR) published an RTP rate of 63%. Other studies that have attempted to estimate RTP after ACLR in these elite athletes have been largely based on secondary sources. This study is the second to report the authors’ own results in treating ACL injuries in NFL players spanning a study period of 25+ years. Purpose: To report the senior authors’ experience treating ACL injuries in NFL players as well as revisit the concept of RTP as it is currently used to measure successful surgical outcomes in professional athletes. Study Design: Case series; Level of evidence, 4. Methods: A total of 47 NFL players were treated at our institution for knee injuries that included a complete tear of the ACL; of these, 41 were primary ACLR and 6 were revision ACLR. Of the primary ACLRs, 6 were classified as ACL plus additional ligament and 3 were classified as multiligament. Return to game play (RTGP) was defined as returning to play in a regular-season game. Successful return to previous participation (RTPP) was defined as return to a level of participation equal to the level the player had reached before injury. Multivariate analysis was used to assess predictors of successful RTPP. Results: Using the RTGP criteria proposed by prior authors, the RTGP after primary ACLR was 73%. Using our proposed RTPP criteria, 87.8% of players successfully returned to the same level of participation after primary ACLR. RTGP percentage for all NFL players after ACLR (including multiligament injuries) was 67.6%, and the overall RTPP for those patients was 87.8%. In multivariate analysis, age ≤25 years was predictive of successful RTPP. High draft picks and offensive players played more seasons after primary ACLR. ACL graft rupture occurred in 4.3% of this cohort. Contralateral ACL tear occurred in 8.5%. Conclusion: Regardless of which definition is used to measure a successful outcome after ACLR surgery, the findings of this study suggest that successful return after primary ACLR in NFL athletes is higher than previously reported. While concomitant reconstruction of a single collateral ligament did not affect RTPP, revision ACLR or bicruciate plus collateral ligament reconstruction was associated with a lower RTPP rate. Age ≤25 years predicted successful RTPP. The risk of a future ACL tear of either knee after index reconstruction was approximately 13%.
Hypertension Care Coordination and Feasibility of Involving Female Community Health Volunteers in Hypertension Management in Kavre District, Nepal: A Qualitative Study

Background: Hypertension and related complications are major contributors to morbidity and mortality in Nepal. Community health workers have been proposed as promising health cadres to meet the growing healthcare demand for non-communicable disease management in other developing countries. Objective: We aimed to explore existing workflows, needs and challenges for hypertension care coordination and to assess the feasibility of establishing a Female Community Health Volunteer (FCHV)-based hypertension management program in Kavre, Nepal. Design: We conducted one focus group discussion with eight FCHVs and twenty-three in-depth interviews with four FCHVs not attending FGD, nine individuals with hypertension, six health workers, and four health officials in two village development committees of Kavre District, Nepal. Applied thematic analysis was performed using NVivo 12. Results: Health literacy related to hypertension was low among both community members and FCHVs. Delay in treatment initiation and loss to follow-up were common patterns despite anti-hypertensive medication compliance. Major health system-related barriers included underutilization of primary healthcare institutions, communication gaps and lack of grass-roots level educational campaigns. Community pharmacies, monthly health camps and increasing governmental attention to NCDs were favorable for improving hypertension management. This study also supports that FCHVs should be provided with adequate training and financial incentives to promote hypertension education, screening and referral in their catchments. Conclusions: Barriers and facilitators identified in this study provide important implications for future hypertension management in Nepal. We recommend hypertension education and screening across Nepal at a grass-root level through FCHVs. Providing professional training and proper financial incentives for FCHVs are warranted. Highlights: Health literacy related to hypertension was low among both community members and Female Community Health Volunteers in Nepal. Delay in treatment initiation and loss to follow-up were common despite relatively high anti-hypertensive medication compliance. Health system-related barriers in research sites included underutilization of primary healthcare institutions, communication gaps, and lack of grass-roots level educational campaigns. Female Community Health Volunteers should be provided with adequate training and financial incentives to promote hypertension management.
Characterizing benefit from temozolomide in MGMT promoter unmethylated and methylated glioblastoma: a systematic review and meta-analysis

Abstract Background The current standard of care for the management of patients with newly diagnosed glioblastoma (GBM) includes maximal safe resection followed by radiotherapy (RT) with concurrent and adjuvant temozolomide (TMZ). While it is well established that TMZ has better efficacy in patients with MGMT promoter methylation, it remains an area of debate whether TMZ should be omitted when treating GBM patients with unmethylated MGMT. Methods We conducted a systematic review and meta-analysis to provide separate estimates of median overall survival (OS) and progression-free survival (PFS) for patients with methylated and unmethylated GBM treated with RT with or without TMZ. We searched multiple databases from inception to January 13, 2020. Results The median OS for patients with unmethylated GBM treated with RT/TMZ pooled from 5 phase III studies (N = 655) was 14.11 months (95% confidence interval [CI], 13.18–15.04) with a median PFS of 4.99 months (95% CI, 4.25–5.72). In contrast, the median OS for patients with methylated GBM pooled from 6 studies (N = 753) was 24.59 months (95% CI, 22.19–26.99) with a median PFS pooled from 7 studies (N = 805) of 9.51 months (95% CI, 7.41–11.61). There is a paucity of prospective data pertaining to OS/PFS in unmethylated patients treated with RT only and therefore a direct comparison was not possible. Conclusions This meta-analysis provides estimates of survival for patients with MGMT methylated or unmethylated GBM treated with RT/TMZ. Further research is needed to delineate whether TMZ should be withheld for patients with unmethylated GBM outside of the setting of clinical trials.
Uveal melanoma: progress in molecular biology and therapeutics

Uveal melanoma (UM) is the most common intraocular malignancy in adults. So far, no systemic therapy or standard treatment exists to reduce the risk of metastasis and improve overall survival of patients. With the increased knowledge regarding the molecular pathways that underlie the oncogenesis of UM, it is expected that novel therapeutic approaches will be available to conquer this disease. This review provides a summary of the current knowledge of, and progress made in understanding, the pathogenesis, genetic mutations, epigenetics, and immunology of UM. With the advent of the omics era, multi-dimensional big data are publicly available, providing an innovation platform to develop effective targeted and personalized therapeutics for UM patients. Indeed, recently, a great number of therapies have been reported specifically for UM caused by oncogenic mutations, as well as other etiologies. In this review, special attention is directed to advancements in targeted therapies. In particular, we discuss the possibilities of targeting: GNAQ/GNA11, PLCβ, and CYSLTR2 mutants; regulators of G-protein signaling; the secondary messenger adenosine diphosphate (ADP)-ribosylation factor 6 (ARF6); downstream pathways, such as those involving mitogen-activated protein kinase/MEK/extracellular signal-related kinase, protein kinase C (PKC), phosphoinositide 3-kinase/Akt/mammalian target of rapamycin (mTOR), Trio/Rho/Rac/Yes-associated protein, and inactivated BAP1; and immune-checkpoint proteins cytotoxic T-lymphocyte antigen 4 and programmed cell-death protein 1/programmed cell-death ligand 1. Furthermore, we conducted a survey of completed and ongoing clinical trials applying targeted and immune therapies for UM. Although drug combination therapy based on the signaling pathways involved in UM has made great progress, targeted therapy is still an unmet medical need.
Structural insights into the architecture and assembly of eukaryotic flagella

Cilia and flagella are slender projections found on most eukaryotic cells including unicellular organisms such as Chlamydomonas, Trypanosoma and Tetrahymena, where they serve motility and signaling functions. The cilium is a large molecular machine consisting of hundreds of different proteins that are trafficked into the organelle to organize a repetitive microtubule-based axoneme. Several recent studies took advantage of improved cryo-EM methodology to unravel the high-resolution structures of ciliary complexes. These include the recently reported purification and structure determination of axonemal doublet microtubules from the green algae Chlamydomonas reinhardtii, which allows for the modeling of more than 30 associated protein factors to provide deep molecular insight into the architecture and repetitive nature of doublet microtubules. In addition, we will review several recent contributions that dissect the structure and function of ciliary trafficking complexes that ferry structural and signaling components between the cell body and the cilium organelle.
Ownership and Usage of Mobile Devices Among Ophthalmology Residents and Attending Physicians: Identifying the Generation Gap

Background Ophthalmology residents strongly rely on digital technology in training. This characteristic may not be shared by their teachers, attending physicians. Therefore, the aim of this study was to describe the ownership and usage of mobile devices among Saudi ophthalmology residents and their attending physicians and to compare ownership and usage patterns between both groups. Methods A survey was conducted to determine the rates of ownership of mobile devices and the patterns of usage among Saudi ophthalmology residents and their attending physicians. The survey was sent to 305 eligible participants. Results The overall response rate was 81%. The mean age of residents and attendings was 27.4 and 48.6 years, respectively. The ownership of mobile phones was higher among attendings (1.21 ± 0.4 vs 1.36 ± 0.5, p = 0.02), whereas the ownership of tablets was higher among residents (1 ± 0.6 vs 0.7 ± 0.6, p = 0.01). Residents utilized mobile devices to access online educational resources more frequently compared to attendings. A statistically significant difference between residents and attendings was reported in the utilization of wikis (91% vs 46%), e-books (90% vs 54%), file sharing sites (84% vs 52%), and vodcasts (78% vs 58%). Both groups also differed with regards to reasons of utilization. While residents most commonly used mobile devices to answer clinical questions on demand (87%) and to acquire basic knowledge (84%), the main reasons of utilization cited by attendings were to look up controversial issues (77%) and to connect with peers (72%). Conclusion The two studied groups differ from each other in the type of devices owned, reasons for usage, and frequency of utilization. The difference in behavior between educators and their students can lead to a generation gap that halts the progress of residents’ training.
Investigation of the potential regulator proteins associated with the expression of major surface protein and dentilisin in Treponema denticola

ABSTRACT Objective Treponema denticola is involved in ‘chronic’ periodontitis pathogenesis. The mechanism underlying the regulation of the expression of its virulence factors, such as major surface protein (Msp) and prolyl-phenylalanine specific protease (dentilisin) is yet to be clarified. We determined the gene expression profiles of Msp- and dentilisin-deficient mutants of T. denticola to identify the regulation network of gene expression concomitant with the inactivation of these virulence genes. Methods Gene expression profiles of T. denticola ATCC 35405 (wild type), dentilisin-deficient mutant K1, and msp-deficient mutant DMSP3 were determined using DNA microarray analysis and quantitative real-time reverse transcription PCR (qRT-PCR). Msp and dentilisin protein levels were determined by immunoblotting and proteolytic activity assays. Results In addition to several differentially expressed genes, dentilisin expression was reduced in DMSP3; msp expression was significantly reduced in K1 (p < 0.05), both at the gene and protein levels. To identify the regulatory system involved, the expression levels of the potential regulators whose expression showed changes in the mutants were evaluated using qRT-PCR. Transcriptional regulators TDE_0127 and TDE_0814 were upregulated in K1, and the potential repressor, TDE_0344, was elevated in DMSP3. Conclusions Dentilisin and Msp expression were interrelated, and gene expression regulators, such as TDE_0127, may be involved in their regulation.
Transcriptome Analysis of Dorsal Root Ganglion in Rats with Knee Joint Inflammation

Background Rheumatoid arthritis (RA) leads to pain through alteration of gene expression. Although gene expression alteration in knee cartilage or peripheral blood from RA patients has been identified using microarray, it remains unclear whether long non-coding RNA (lncRNA)-mediated gene regulation occurs in primary sensory neurons of dorsal root ganglia (DRG) during RA-like joint inflammation. In the present study, we aimed to analyze lncRNA and related mRNA profiles in the DRG in a knee joint inflammation rat model. Methods Complete Freund’s adjuvant (CFA) was injected in the rat knee joint for preparing the joint inflammation model. A lncRNA-mRNA microarray of rat DRG was employed for transcriptome analysis. Functional roles of differentially expressed lncRNAs and their related mRNAs in the injured DRG were delineated by bioinformatic analysis. Results We observed that expression levels of 9000 lncRNAs were altered on day 7 post-CFA, of which 45.17% were up-regulated and 54.83% were down-regulated. Specifically, 69 lncRNAs (42 up and 27 down) were significantly regulated. We also observed that expression levels of 13,744 mRNAs were altered on day 7 post-CFA, of which 49.67% were up-regulated and 50.33% were down-regulated. Specifically, 102 mRNAs (51 up and 51 down) were significantly regulated. Using quantitative real-time PCR, we verified the changes in differentially expressed lncRNAs in the injured DRG. Conclusion These results suggest that microarray-based RNA sequencing can be used to identify altered lncRNAs and relevant mRNAs in the DRG of rats with knee joint inflammation.
Intermediate-High Risk Pulmonary Embolism: The Use of Riociguat and Inferior Vena Cava Filter in a Situation of Recurrent Embolism following Insufficient Anticoagulation and Fibrinolytic Therapy

Pulmonary embolism (PE) is associated with serious morbidity and mortality. In this case report, we describe a hemodynamically stable patient with submassive PE and a large thrombus in the inferior vena cava (IVC) protruding into the right atrium (RA), complicated by severe respiratory failure, elevated troponin T (TnT), and right ventricular (RV) dysfunction. The patient was stratified as intermediate-high risk of early death. Important issues regarding the initial choice of anticoagulation, rescue thrombolytic therapy, and benefits of adding riociguat to stimulate the nitric oxide-soluble guanylate cyclase-cyclic guanosine monophosphate (NO-sGC-cGMP) pathway to improve the RV function are discussed. Finally, we address appropriate timing and the use of IVC filter in a situation of recurrent PE following anticoagulation and fibrinolytic therapy.
HIV/AIDS knowledge among Iranian Health Care Workers

Summary Background HIV/AIDS remains a major public health concern globally and Health Care Workers (HCWs) are in the frontline of preventing and providing care in the health care system. The aim of this study was to evaluate HIV/AIDS knowledge among Iranian HCWs. Methodology This cross-sectional study was conducted among 200 HCWs who were randomly selected from health care centers in Kermanshah city, west of Iran, 2018. HCWs filled out a self-administered questionnaire including the socio-demographic characteristics and HIV/AIDS knowledge items. Data were analyzed by SPSS version 16 using bivariate correlations, t-test, and ANOVA statistical tests. Results The mean score of HIV/AIDS knowledge was 29.73 [95% CI: 28.79, 30.67], ranged from 0 to 40 (74.3% of total percent). There was no significant association and correlation between HIV/AIDS knowledge and sex, education level, marital status, age and job history. Up to 50% had inadequate knowledge about HIV/AIDS status and transmission in Iran. Conclusions HCWs HIV/AIDS knowledge was average and it seems need to be educating regarding HIV/AIDS status and transmission in Iran.
Analgesic and Antiallodynic Effects of 4-Fluoro-N-(4-Sulfamoylbenzyl) Benzene Sulfonamide in a Murine Model of Pain

Introduction Physical, chemical, thermal injuries along with infectious diseases lead to acute pain with associated inflammation, being the primary cause of hospital visits. Moreover, neuropathic pain associated with diabetes is a serious chronic disease leading to high morbidity and poor quality of life. Objective Earlier multiple sulphonamides have been reported to have an antinociceptive and antiallodynic profile. 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide (4-FBS), a synthetic sulfonamide with reported carbonic anhydrase inhibitory activity, was investigated for its potential effects in mice model of acute and diabetic neuropathic pain. Methods and Results 4-FBS was given orally (p.o.) one hour before the test and then mice were screened for antinociceptive activity by using the tail immersion test, which showed significant antinociceptive effect at both 20 and 40 mg/kg doses. To explore the possible mechanisms, thermal analgesia of 4-FBS was reversed by the 5HT3 antagonist ondansetron 1mg/kg intraperitoneally (i.p.) and by the µ receptor antagonist naloxone (1 mg/kg i.p.), implying possible involvement of serotonergic and opioidergic pathways in the analgesic effect of 4-FBS. Diabetes was induced in mice by a single dose of streptozotocin (STZ) 200 mg/kg i.p. After two weeks, animals first became hyperalgesic and progressively allodynic in the fourth week, which was evaluated through behavioral parameters like thermal and mechanical tests. 4-FBS at 20 and 40 mg/kg p.o. significantly reversed diabetes-induced hyperalgesia and allodynia at 30, 60, 90, and 120 minutes. Conclusion These findings are significant and promising while further studies are warranted to explore the exact molecular mechanism and the potential of 4-FBS in diabetic neuropathic pain.
Symptom Clusters in Patients with End-Stage Renal Disease Undergoing Hemodialysis

Background End-stage renal disease (ESRD) patients undergoing hemodialysis have to face many symptoms from disease progression and treatment. These symptoms cause suffering and affect physical, psychological, emotional, social, and spiritual of the patients, resulting in decreased quality of life and might increase the death rate of these patients. Therefore, the study of symptoms in ESRD patients undergoing hemodialysis will lead to effective symptom management and maximize benefits for the patients. The purpose of this study was to explore the symptom clusters of ESRD patients undergoing hemodialysis. Materials and Methods The sample of this descriptive study consisted of 150 ESRD patients undergoing hemodialysis from two dialysis centre of the university hospital and specialized kidney hospital in Bangkok. The instruments consisted of Personal Information Questionnaire (PIQ) and Dialysis Symptom Index-THAI (DSI-THAI). The data were analyzed by exploratory factor analysis. Results The 8 clusters of symptoms were found: 1) gastrointestinal, 2) musculoskeletal and fluid volume 3) neurological 4) irritation of the mucous membranes and skin 5) depression 6) sleep disturbance 7) sexual 8) anemic. Conclusion The results of this study can be raised awareness and used as the information for the health-care provider to develop the intervention to manage unpleasant symptoms which lead to improving the quality of life.