bluuebunny/crossref_metadata_2025_split huggingface dataset:
Early clinical outcomes of one-stage total hip arthroplasty for the treatment of advanced hip tuberculosis
Authors: Chen Chang , Yin Yiran , Xu Huan , Chen Ge 
Published: March 2021

Objective: To investigate the clinical efficacy of one-stage total hip arthroplasty (THA) for treating the advanced hip tuberculosis. Methods: A retrospective study was conducted from July 2013 to June 2018, including 19 patients with advanced hip tuberculosis. All patients underwent total hip arthroplasty through posterior approach, and the surgical efficacy was evaluated. Results: Nineteen patients were followed up from 24 months to 48 months, the mean follow-up were 32.1 months. All the incisions healed in grade A. There were no aseptic loosening, dislocation or recurrence of hip tuberculosis after operation. At the last follow-up, the Harris score of the patients was (89.3 ± 6.7), which was significantly higher than (38.2 ± 10.5) of the patients before operation (P < 0.05); the flexion-extension range of motion was (93.6° ± 12.1°), which was significantly larger than (38.2° ± 10.5°) of the patients before operation (P < 0.05). Conclusion: The one-stage total hip arthroplasty with regular antituberculosis treatment can attain satisfactory clinical efficacy in the treatment of advanced hip tuberculosis, which can relieve the joint pain and improve the joint function, without recurrence of hip tuberculosis.
Clinically Reliable Knee Flexion Angle Measured on Stress Radiography for Quantifying Posterior Instability in Posterior Cruciate Ligament Injury
Authors: Ryu Dong Jin , Kwon Kyeu Baek , Jung Eui Yub , Lee Sung-Sahn , Kim Joo Hwan , Jang Min Chang , Wang Joon Ho 
Published: March 2021

Background: After posterior cruciate ligament injury, stress radiography is a common method of quantifying posterior instability, defined as the side-to-side difference in posterior tibial displacement (PTD) between the injured knee and contralateral noninjured knee. However, no study has evaluated the reliability of PTD according to knee flexion angle (KFA) measurements on stress radiographs. Purpose: To evaluate the test-retest reliability of stress radiographic measurements of the KFA in the noninjured knee. In addition, we established a reliable range of KFAs to indicate posterior instability by comparing results with the instability measured at 90° KFA, which is considered the gold standard. Study Design: Cohort study (diagnosis); Level of evidence, 3. Methods: We evaluated patients who had undergone bilateral stress radiographic examinations at least 5 times for ligament injuries between January 2013 and November 2019. All examinations were performed on a Telos device with a 150-N posterior load. A total of 120 knees and 644 stress radiographs were enrolled. We measured the KFA and PTD on stress radiographs and evaluated the reliability of repeated PTD measurement and the correlation between KFA and PTD. Results: The distribution of the actual noninjured knee KFA ranged from 56.9° to 106.7°. Among the 644 radiographs, 155 (24.1%) showed KFAs between 85° and 95°, and 287 (44.6%) showed KFAs between 80° and 85°. A significant correlation was found between KFA and PTD ( P < .001), and the intrapatient intraclass correlation coefficient (ICC) was 0.788. A KFA range of 85° to 92° satisfied the criteria of high ICC (0.885) and nonsignificant correlation between KFA and PTD ( P = .055) and thus was considered a reliable range of KFAs for quantifying posterior instability. We found no significant risk factors for measurement error, including age ( P = .674), sex ( P = .328), height ( P = .957), weight ( P = .248), or body mass index ( P = .257). Conclusion: We found high reproducibility of posterior displacement measurements on Telos stress radiography at a KFA of 85° to 92° in noninjured knees.
Outcomes of older patients with follicular lymphoma using individual data from 5922 patients in 18 randomized controlled trials
Authors: Casulo Carla , Dixon Jesse G. , Ou Fang-Shu , Hoster Eva , Peterson Bruce A. , Hochster Howard S. , Brice Pauline , Ladetto Marco , Hiddemann Wolfgang , Marcus Robert , Kimby Eva , Herold Michael , Nielsen Tina , Morschhauser Franck , Rummel Mathias , Hagenbeek Anton , Vitolo Umberto , Salles Gilles A. , Shi Qian , Flowers Christopher R. 
Published: March 2021

Abstract
Limited data exist to describe the clinical features and outcomes for elderly patients with follicular lymphoma (FL). The Follicular Lymphoma Analysis of Surrogacy Hypothesis (FLASH) group performed a prospectively planned pooled analysis of individual patient data from first-line randomized controlled trials (RCTs) and examined associations between age (≤70 vs &gt;70 years), clinical characteristics, and FL outcomes. We identified 18 multicenter clinical RCTs in the FLASH database that enrolled elderly patients (&gt;70 years). Primary end points were early disease outcomes, CR24 and CR30, and progression-free survival (PFS) at 24 months (PFS24). Secondary end points were PFS and overall survival (OS). We identified 5922 previously untreated FL patients from 18 RCTs. Patients age &gt;70 years (vs ≤70 years) more commonly had elevated lactate dehydrogenase, hemoglobin &lt;12 g/dL, ECOG PS ≥2, and elevated β2-microglobulin. Median follow-up was 5.6 years. Patients &gt;70 years did not differ from patients ≤70 years in rates of CR24, CR30, or PFS24. With a median OS of 14.6 years for all patients, median OS was 7.4 and 15.7 years for patients &gt;70 and ≤70 years of age, respectively (hazard ratio = 2.35; 95% confidence interval = 2.03-2.73; P &lt; .001). Age &gt;70 years was a significant predictor of OS and PFS due to higher rates of death without progression, but not PFS24, CR24, or CR30. FL patients &gt;70 years treated on trials have similar early disease outcomes to younger patients. There is no disease-specific outcome difference between age groups. Age alone should not disqualify patients from standard treatments or RCTs.
Changes in health status, workload, and lifestyle after starting the COVID-19 pandemic: a web-based survey of Japanese men and women
Authors: Suka Machi , Yamauchi Takashi , Yanagisawa Hiroyuki 
Published: March 2021

Abstract
Background
This study aimed to examine the change in health status of the general public after starting the COVID-19 pandemic and its association with changes in workload and lifestyle.

Methods
A web-based survey was conducted in November 2020, about 9 months after starting the COVID-19 pandemic in Japan, among 8000 Japanese men and women aged 25–64 years. Participants asked for the changes after starting the COVID-19 pandemic in health status, workload, daily life, and health behavior. Ordinal logistic regression was performed to elucidate factors associated with deterioration in general health status.

Results
A deterioration in general health status was reported by 17.0% of male and 19.4% of female. There has been a clear shift to sedentary life with decreasing moderate activity and increasing screen time. The multivariate analysis revealed that deteriorated work style, increased burden of housework, decreased moderate activity, increased digital media exposure, and increased body weight were significantly associated with deteriorating health status.

Conclusion
Both men and women have experienced significant changes in workload and lifestyle since the COVID-19 pandemic started. People should be aware of the risks associated with their recent life changes and take self-care measures to prevent serious health consequences.
Phytotoxin sorption to clay minerals
Authors: Schönsee Carina D. , Wettstein Felix E. , Bucheli Thomas D. 
Published: March 2021

Abstract
Background
Phytotoxins of various classes and origin are often found in their cationic form in the soil environment and thus, their overall soil behavior may be strongly affected by all geosorbents presenting cation exchange capacity (CEC). In addition to soil organic carbon (SOC), clays may exhibit great potential as sorbents for cationic organic chemicals. Therefore, 52 compounds of the major phytotoxin classes alkaloids, terpenoids and steroids were investigated with regard to their sorption behavior to the clay minerals kaolinite (low CEC) and montmorillonite (high CEC) by means of continuous flow column sorption experiments as a high-throughput alternative to traditional batch sorption experiments.

Results
In total, sorption coefficients log Dclay [L kg−1] were quantifiable for 26 phytotoxins on kaolinite (log Dclay > 0.1) and 33 on montmorillonite (log Dclay > 0.5). They ranged from 0.14 ± 0.09 for the pyrrolizidine alkaloid senkirkine on kaolinite to 3.05 ± 0.03 for the indole alkaloid brucine on montmorillonite. Although maximum sorbed concentrations lay well below the CEC for both clay minerals, sorption non-linearity was observed in some cases where as little as 0.1% of all cation exchange sites were occupied. Contrary to the expectations, sorption non-linearity could not be wholly explained by saturation of available sorption sites; for protonated tertiary amines with aromatic moieties, cooperative sorption seemingly took place and the results indicated a significant increase in sorption affinities within a very limited concentration range. Comparing montmorillonite and SOC, notable differences in preferences of cationic sorbates were observed between phytotoxins with and without aromatic moieties (e.g., isoquinoline versus pyrrolizidine alkaloids) as well as between N-heterocycles and N-heteroaromatics in particular (e.g., strychnine versus gramine; both indole alkaloids).

Conclusions
Overall, clay sorption seems a result of the interplay of charge location on the sorbent and various structural features of the sorbates. To confirm observed tendencies towards cooperative sorption for certain cationic phytotoxins, further studies with higher concentrations are needed. Nevertheless, obtained sorption coefficients indicate that a high proportion of phytotoxin sorption in soils may be attributed to clay minerals. Thus, clay minerals possess the ability to decrease total cationic phytotoxin environmental mobility.
Nonlinear ridge regression improves cell-type-specific differential expression analysis
Authors: Takeuchi Fumihiko , Kato Norihiro 
Published: March 2021

Abstract
Background
Epigenome-wide association studies (EWAS) and differential gene expression analyses are generally performed on tissue samples, which consist of multiple cell types. Cell-type-specific effects of a trait, such as disease, on the omics expression are of interest but difficult or costly to measure experimentally. By measuring omics data for the bulk tissue, cell type composition of a sample can be inferred statistically. Subsequently, cell-type-specific effects are estimated by linear regression that includes terms representing the interaction between the cell type proportions and the trait. This approach involves two issues, scaling and multicollinearity.

Results
First, although cell composition is analyzed in linear scale, differential methylation/expression is analyzed suitably in the logit/log scale. To simultaneously analyze two scales, we applied nonlinear regression. Second, we show that the interaction terms are highly collinear, which is obstructive to ordinary regression. To cope with the multicollinearity, we applied ridge regularization. In simulated data, nonlinear ridge regression attained well-balanced sensitivity, specificity and precision. Marginal model attained the lowest precision and highest sensitivity and was the only algorithm to detect weak signal in real data.

Conclusion
Nonlinear ridge regression performed cell-type-specific association test on bulk omics data with well-balanced performance. The omicwas package for R implements nonlinear ridge regression for cell-type-specific EWAS, differential gene expression and QTL analyses. The software is freely available from https://github.com/fumi-github/omicwas
Shifts in morphology, gene expression, and selection underlie web loss in Hawaiian Tetragnatha spiders
Authors: Berger Cory A. , Brewer Michael S. , Kono Nobuaki , Nakamura Hiroyuki , Arakawa Kazuharu , Kennedy Susan R. , Wood Hannah M. , Adams Seira A. , Gillespie Rosemary G. 
Published: March 2021

AbstractBackgroundA striking aspect of evolution is that it often converges on similar trajectories. Evolutionary convergence can occur in deep time or over short time scales, and is associated with the imposition of similar selective pressures. Repeated convergent events provide a framework to infer the genetic basis of adaptive traits. The current study examines the genetic basis of secondary web loss within web-building spiders (Araneoidea). Specifically, we use a lineage of spiders in the genusTetragnatha(Tetragnathidae) that has diverged into two clades associated with the relatively recent (5 mya) colonization of, and subsequent adaptive radiation within, the Hawaiian Islands. One clade has adopted a cursorial lifestyle, and the other has retained the ancestral behavior of capturing prey with sticky orb webs. We explore how these behavioral phenotypes are reflected in the morphology of the spinning apparatus and internal silk glands, and the expression of silk genes. Several sister families to the Tetragnathidae have undergone similar web loss, so we also ask whether convergent patterns of selection can be detected in these lineages.ResultsThe cursorial clade has lost spigots associated with the sticky spiral of the orb web. This appears to have been accompanied by loss of silk glands themselves. We generated phylogenies of silk proteins (spidroins), which showed that the transcriptomes of cursorialTetragnathacontain all major spidroins except for flagelliform. We also found an uncharacterized spidroin that has higher expression in cursorial species. We found evidence for convergent selection acting on this spidroin, as well as genes involved in protein metabolism, in the cursorialTetragnathaand divergent cursorial lineages in the families Malkaridae and Mimetidae.ConclusionsOur results provide strong evidence that independent web loss events and the associated adoption of a cursorial lifestyle are based on similar genetic mechanisms. Many genes we identified as having evolved convergently are associated with protein synthesis, degradation, and processing, which are processes that play important roles in silk production. This study demonstrates, in the case of independent evolution of web loss, that similar selective pressures act on many of the same genes to produce the same phenotypes and behaviors.
Characterization of cotton ARF factors and the role of GhARF2b in fiber development
Authors: Zhang Xiufang , Cao Junfeng , Huang Chaochen , Zheng Zishou , Liu Xia , Shangguan Xiaoxia , Wang Lingjian , Zhang Yugao , Chen Zhiwen 
Published: March 2021

AbstractBackgroundCotton fiber is a model system for studying plant cell development. At present, the functions of many transcription factors in cotton fiber development have been elucidated, however, the roles of auxin response factor (ARF) genes in cotton fiber development need be further explored.ResultsHere, we identify auxin response factor (ARF) genes in three cotton species: the tetraploid upland cottonG. hirsutum, which has 73 ARF genes, and its putative extent parental diploidsG. arboreumandG. raimondii, which have 36 and 35 ARFs, respectively. Ka and Ks analyses revealed that inG. hirsutum ARFgenes have undergone asymmetric evolution in the two subgenomes. The cotton ARFs can be classified into four phylogenetic clades and are actively expressed in young tissues. We demonstrate thatGhARF2b, a homolog of the ArabidopsisAtARF2, was preferentially expressed in developing ovules and fibers. Overexpression ofGhARF2bby a fiber specific promoter inhibited fiber cell elongation but promoted initiation and, conversely, its downregulation by RNAi resulted in fewer but longer fiber. We show that GhARF2b directly interacts with GhHOX3 and represses the transcriptional activity of GhHOX3 on target genes.ConclusionOur results uncover an important role of the ARF factor in modulating cotton fiber development at the early stage.
Video as an alternative to in-person consultations in outpatient renal transplant recipient follow-up: a qualitative study
Authors: Varsi Cecilie , Stenehjem Aud-Eldrid , Børøsund Elin , Solberg Nes Lise 
Published: March 2021

Abstract
Background
Renal transplant recipients have to see a nephrologist for regular follow-up for the rest of their lives. To reduce the burden for the patients, video consultation can be an alternative to traditional in-person hospital consultations. The aim of the current study was, from the perspectives of patients and health care providers, to investigate the perceived benefits and challenges of using video consultations in outpatient renal transplant recipient follow-up.

Methods
Patients (i.e., renal transplant recipients; n = 18) alternated between regular in-person follow-up consultations and video consultations. Patients and health care providers were then invited to participate in semi-structured interviews. The interviews were analyzed using thematic analysis.

Results
Patients interviewed (n = 15) were median 53 years old (range 37–64) and 53% female. The video consultation solution used in the study turned out to have major technical deficiencies. Despite the technical challenges, however, the majority of the patients reported appreciating being able to alternate between video and in-person hospital consultations. Main benefits reported included not needing to travel to the hospital and thereby saving time, less focus on being chronically ill and potential economic benefits for patients and society. The health care providers (n = 3) also valued the benefits provided by the use of video consultations, but described the reoccurring technical challenges as disruptive. The fact that patients were in a stable phase of their health condition and already had an established, trusting relationship with their nephrologist, acted as facilitators for success. Possible challenges and harms described included concerns related to security, confidentiality and interruptions, as well as the potential need for physical examinations.

Conclusions
Benefits from using video consultations as an alternative to in-person consultations may outweigh potential technological challenges for patients as well as health care providers. A long-lasting mutually trusting relationship between patient and provider may be an important prerequisite for the experienced benefits of using video consultation. Findings also indicate that starting such care delivery changes in a small-scale, with a few selected patients in a stable phase of their condition, may be an important factor for success.
Hazardous alcohol use is associated with greater pain interference and prescription opioid misuse among persons living with HIV and chronic pain
Authors: Ngo Belle , Liebschutz Jane M. , Cheng Debbie M. , Colasanti Jonathan A. , Merlin Jessica S. , Armstrong Wendy S. , Forman Leah S. , Lira Marlene C. , Samet Jeffrey H. , del Rio Carlos , Tsui Judith I. 
Published: March 2021

Abstract
Background
Alcohol use is common among persons living with HIV (PLWH), who often experience chronic pain, yet its impact on pain and opioid misuse is not fully characterized.

Methods
We assessed associations between hazardous alcohol use and pain interference, defined as the self-reported impact of pain on daily living, pain severity, and risk for opioid misuse among PLWH who were on long-term opioid therapy (LTOT). A cohort was recruited as part of the “Targeting Effective Analgesia in Clinics for HIV” (TEACH) study, a randomized controlled trial to improve LTOT in HIV clinics. The Alcohol Use Disorders Test (AUDIT), Brief Pain Inventory (BPI) and the Current Opioid Misuse Measure (COMM) were administered at both baseline and 12-months. Linear mixed and generalized estimating equation models, incorporating data from both time points, evaluated associations between hazardous alcohol use (AUDIT ≥8) and: pain interference (0–10), pain severity (0–10), and opioid misuse risk (COMM ≥13), adjusting for age, gender, depressive symptoms, use of non-alcohol substances, time-point, and study-arm.

Results
The sample was comprised of 166 participants, of which 31 (19%) reported hazardous alcohol use. The majority were male (65%), black (72%), and the mean age was 54 (range: 29–77). Hazardous alcohol use was significantly associated with higher pain interference (adjusted mean difference [AMD]: 1.02; 95% CI: 0.08, 1.96) and higher odds of opioid misuse risk (AOR: 3.73, 95% CI: 1.88–7.39), but not pain severity (AMD: 0.47, 95% CI: − 0.35, 1.29).

Conclusions
Hazardous alcohol use was associated with greater functional impairment in daily living from their pain and higher odds for prescription opioid misuse in this study of PLWH on LTOT. Providers should be attentive to alcohol use among PLWH who are prescribed opioids given associations with pain and opioid misuse.

Trial registration
ClinicalTrials.govNCT02564341 (Intervention, September 30, 2015) and NCT02525731 (Patient Cohort, August 17, 2015). Both prospectively registered.
An innovative approach to improve the detection and treatment of risk factors in poor urban settings: a feasibility study in Argentina
Authors: Rosana Poggio , Danaei Goodarz , Gutierrez Laura , Cavallo Ana , Lopez María Victoria , Irazola Vilma 
Published: March 2021

Abstract
Background
The effective management of cardiovascular (CVD) prevention among the population with exclusive public health coverage in Argentina is low since less than 30% of the individuals with predicted 10-year CVD risk ≥10% attend a clinical visit for CVD risk factors control in the primary care clinics (PCCs).

Methods
We conducted a non-controlled feasibility study using a mixed methods approach to evaluate acceptability, adoption and fidelity of a multi-component intervention implemented in the public healthcare system. The eligibility criteria were having exclusive public health coverage, age ≥ 40 years, residence in the PCC’s catchment area and 10-year CVD risk ≥10%. The multi-component intervention addressed (1) system barriers through task shifting among the PCC’s staff, protected medical appointments slots and a new CVD form and (2) Provider barriers through training for primary care physicians and CHW and individual barriers through a home-based intervention delivered by community health workers (CHWs).

Results
A total of 185 participants were included in the study. Of the total number of eligible participants, 82.2% attended at least one clinical visit for risk factor control. Physicians intensified drug treatment in 77% of participants with BP ≥140/90 mmHg and 79.5% of participants with diabetes, increased the proportion of participants treated according to GCP from 21 to 32.6% in hypertensive participants, 7.4 to 33.3% in high CVD risk and 1.4 to 8.7% in very high CVD risk groups. Mean systolic and diastolic blood pressure were lower at the end of follow up (156.9 to 145.4 mmHg and 92.9 to 88.9 mmHg, respectively) and control of hypertension (BP < 140/90 mmHg) increased from 20.3 to 35.5%.

Conclusion
The proposed CHWs-led intervention was feasible and well accepted to improve the detection and treatment of risk factors in the poor population with exclusive public health coverage and with moderate or high CVD risk at the primary care setting in Argentina. Task sharing activities with CHWs did not only stimulate teamwork among PCC staff, but it also improved quality of care. This study showed that community health workers could have a more active role in the detection and clinical management of CVD risk factors in low-income communities.