bluuebunny/crossref_metadata_2025_split huggingface dataset:
Locking retrograde nail, non-locking retrograde nail and plate fixation in the treatment of distal third femoral shaft fractures: radiographic, bone densitometry and clinical outcomes
Authors: Meccariello Luigi , Bisaccia Michele , Ronga Mario , Falzarano Gabriele , Caraffa Auro , Rinonapoli Giuseppe , Grubor Predrag , Pace Valerio , Rollo Giuseppe 
Published: August 2021

Abstract
Background
Distal third femoral shaft fractures are characterized by increasing incidence and complexity and are still considered a challenging problem (high morbidity and mortality). No consensus on best surgical option has been achieved. This study aims to investigate radiographic, mineral bone densitometry and clinical outcomes of locking retrograde intramedullary (LRN) nailing, non-locking retrograde intramedullary nailing and anatomical locking plate to surgically treat distal third femoral shaft fractures in young adults. Our hypothesis was that there is no significant statistical difference among the surgical options in terms of results (radiographic, bone densitometry and outcomes assessment).

Methods
Retrospective study: 90 patients divided into three groups (group 1 LRN, group 2 NLRN, group 3 plating). Average age was respectively 42.67 (± 18.32), 44.27 (± 15.11) and 42.84 (± 18.32) years. Sex ratio F:M was respectively 2.75, 2.33 and 2.00. AO Classification, KOOS, NUSS and RUSH score, VAS, DEXA scans and plain radiographs were used. Evaluation endpoint: 12 months after surgery.

Results
There were no statistical differences in terms of surgery time, transfusions, and wound healing. Results were similar with regard to average time of bone healing, RUSH scores, VAS, KOOS, regression between RUSH and VAS, average correlation clinical–radiographic results and patients outcomes.

Conclusions
Our results showed no statistical difference in the use of LNR, NLNR and plating for treatment of distal third femur shaft fractures in terms of radiographic, bone densitometry and clinical outcomes. Good subjective and objective results are provided by all three techniques. The choice among the studied techniques must be based on surgeons’ experience, indications and subjective patients’ aspects. The absence of relevant similar data in the published literature does not allow definitive validation (or rejection) of our hypothesis. A more powered study with a bigger cohort is needed for definitive validation.
Anti-inflammatory protein TNFα-stimulated gene-6 (TSG-6) reduces inflammatory response after brain injury in mice
Authors: Mutoji Kazadi Nadine , Sun Mingxia , Nash Amanda , Puri Sudan , Hascall Vincent , Coulson-Thomas Vivien J. 
Published: August 2021

Abstract
Background
Current research suggests that the glial scar surrounding penetrating brain injuries is instrumental in preserving the surrounding uninjured tissue by limiting the inflammatory response to the injury site. We recently showed that tumor necrosis factor (TNF)-stimulated gene-6 (TSG-6), a well-established anti-inflammatory molecule, is present within the glial scar. In the present study we investigated the role of TSG-6 within the glial scar using TSG-6 null and littermate control mice subjected to penetrating brain injuries.

Results
Our findings show that mice lacking TSG-6 present a more severe inflammatory response after injury, which was correlated with an enlarged area of astrogliosis beyond the injury site.

Conclusion
Our data provides evidence that TSG-6 has an anti-inflammatory role within the glial scar.
Perimyocarditis following first dose of the mRNA-1273 SARS-CoV-2 (Moderna) vaccine in a healthy young male: a case report
Authors: Hasnie Ammar A. , Hasnie Usman A. , Patel Nirav , Aziz Muhammad U. , Xie Min , Lloyd Steven G. , Prabhu Sumanth D. 
Published: August 2021

Abstract
Background
Half of U.S. adults have received at least one dose of the COVID-19 vaccines produced by either Pfizer, Moderna, or Johnson and Johnson, which represents a major milestone in the ongoing pandemic. Given the emergency use authorizations for these vaccines, their side effects and safety were assessed over a compressed time period. Hence, ongoing monitoring for vaccine-related adverse events is imperative for a full understanding and delineation of their safety profile.

Case presentation
An 22-year-old Caucasian male presented to our hospital center complaining of pleuritic chest pain. Six months prior he had a mild case of COVID-19, but was otherwise healthy. He had received his first dose of the Moderna vaccine three days prior to developing symptoms. Laboratory analysis revealed a markedly elevated troponin and multiple imaging modalities during his hospitalization found evidence of wall motion abnormalities consistent with a diagnosis of perimyocarditis. He was started on aspirin and colchicine with marked improvement of his symptoms prior to discharge.

Conclusions
We present a case of perimyocarditis that was temporally related to COVID-19 mRNA vaccination in an young male with prior COVID-19 infection but otherwise healthy. Our case report highlights an albeit rare but important adverse event for clinicians to be aware of. It also suggests a possible mechanism for the development of myocardial injury in our patient.
Does Case Management Provide Support for Staff Facing Frequent Users of Emergency Departments? A Comparative Mixed-Method Evaluation of ED Staff Perception
Authors: von Allmen Michael , Grazioli Véronique S. , Kasztura Miriam , Chastonay Oriane , Moullin Joanna C. , Hugli Olivier , Daeppen Jean-Bernard , Bodenmann Patrick 
Published: August 2021

Abstract
Objective
Frequent users of emergency departments (FUED) account for a disproportionate number of emergency department (ED) visits and contribute to a wide range of challenges for ED staff. While several research has documented that case management (CM) tailored to FUED leads to a reduction in ED visits and a better quality of life (QoL) among FUED, whether there is added value for ED staff remains to be explored. This study aimed to compare, among staff in two academic EDs in Switzerland (one with and one without CM), the FUED-related knowledge, perceptions of the extent of the FUED issue, FUED-related work challenges and FUEDs’ legitimacy to use ED.

Method
Mixed methods were employed. First, ED physicians and nurses (N = 253) of the two EDs completed an online survey assessing their knowledge and perceptions of FUEDs. Results between healthcare providers working in an ED with CM to those working in an ED without CM were compared using independent two-sided T-tests. Next, a sample of participants (n = 16) took part in a qualitative assessment via one-to-one interviews (n = 6) or focus groups (n = 10).

Results
Both quantitative and qualitative results documented that the FUED-related knowledge, the extent FUED were perceived as an issue and perceived FUEDs’ legitimacy to use ED were not different between groups. The level of perceived FUED-related challenges was also similar between groups. Quantitative results showed that nurses with CM experienced more challenges related to FUED. Qualitative exploration revealed that lack of psychiatric staff within the emergency team and lack of communication between ED staff and CM team were some of the explanations behind these counterintuitive findings.

Conclusion
Despite promising results on FUEDs’ QoL and frequency of ED visits, these preliminary findings suggest that CM may provide limited support to ED staff in its current form. Given the high burden of FUED-related challenges encountered by ED staff, improved communication and FUED-related knowledge transfer between ED staff and the CM team should be prioritized to increase the value of a FUED CM intervention for ED staff.
Supplemental bifid triple viable capsule treatment improves inflammatory response and T cell frequency in ulcerative colitis patients
Authors: Li Shuying , Yin Yan , Xiao Dan , Zou Yong 
Published: August 2021

Abstract
Background
Ulcerative colitis is a common non-specific chronic disease. Supplementing probiotics has become an important method for the treatment of ulcerative colitis. This study aimed to explore the effect of supplementing bifid triple viable capsules on background mesalazine plus somatostatin on plasma inflammatory factors and T cell frequency in ulcerative colitis patients.

Methods
A total of 130 ulcerative colitis patients admitted to our hospital from August 2018 to March 2020 were included and divided into the experimental group (65 patients with mesalazine plus somatostatin and bifid triple viable capsules for treatment) and the control group (65 patients treated with mesalazine plus somatostatin) using the random number table method. Bifid triple viable bacteria capsules were given orally, 420 mg each time, with 3 times a day for 2 months.

Results
Before treatment, the plasma levels of IL-6, IL-8, hs-CRP, TNF-α, D-lactic acid, and endotoxin (ET), CD4+, CD8+, CD4/CD8 ratio, diamine oxidase (DA0), emotional ability, social ability, intestinal and systemic symptoms were not significantly different between the two groups (all P > 0.05). After treatment, the plasma levels of IL-6, IL-8, hs-CRP, and TNF-α decreased in both groups, and were lower in the experimental group than those in the control group (all P < 0.05). The levels of CD4+ and CD4/CD8 ratio increased, and were higher in the experimental group than those in the control group (P < 0.05); the CD8+ levels were reduced, and were lower in the experimental group than those in the control group (P < 0.05). The plasma D-lactic acid, ET, and DA0 levels were decreased, and were lower in the experimental group than those in the control group; emotional ability, social ability, intestinal and systemic symptoms were improved, and were higher in the experimental group than those in the control group (all P < 0.05). During the course of treatment, 2 cases of abdominal discomfort and 1 case of rash occurred in the experimental group, with an adverse event rate of 4.62% (3/65); 3 cases of abdominal discomfort and 2 cases of rash occurred in the control group, with an adverse event rate of 7.69% (5/65).

Conclusion
The supplementary treatment of bifid triple viable capsules can effectively enhance the curative effect in ulcerative colitis patients, reduce plasma inflammatory factors, and regulate T cell frequency, which is worthy of clinical application.
Longitudinal measurement invariance of the patient health questionnaire in a German sample
Authors: Moehring Anne , Guertler Diana , Krause Kristian , Bischof Gallus , Rumpf Hans-Juergen , Batra Anil , Wurm Susanne , John Ulrich , Meyer Christian 
Published: August 2021

Abstract
Background
The Patient Health Questionnaire-8 (PHQ-8) is a screening questionnaire of depressive symptoms. However, it is unknown whether it is equivalent across time and between groups of individuals. The aim of our paper was to test whether the PHQ-8 has the same meaning in two groups of individuals over time.

Methods
Primary care patients were proactively recruited from three German cities. PHQ-8 data from a baseline assessment (n = 588), two assessments during the intervention (n = 246/225), and a six (n = 437) and 12 months (n = 447) follow-up assessment were first used to examine the factor structure of the PHQ-8 by confirmatory factor analysis (CFA). The best fitting factor solution was then used to test longitudinal invariance across time and between intervention and control group by Multiple Group CFA.

Results
A two-factor structure consistently showed the best model fit. Only configural longitudinal invariance was evidenced when the baseline assessment was included in the analysis. Without the baseline assessment, strict longitudinal invariance was shown across the intervention and the follow-up assessments. Scalar invariance was established between the intervention and control group for the baseline assessment and strict invariance between groups and across the 6- and 12-month follow-up assessments.

Conclusions
The lack of longitudinal invariance might be attributed to various differences between the baseline assessments and all following assessments, e.g., assessment mode (iPad vs telephone), potential changes in symptom perception, and setting.

Trial registration
DRKS00011635, date of trial registration: 20.01.2017; DRKS00011637, date of trial registration: 25.01.2017.
Immediate and 6-week effects of wearing a knee sleeve following anterior cruciate ligament reconstruction: a cross-over laboratory and randomised clinical trial
Authors: Sole Gisela , Lamb Peter , Pataky Todd , Klima Stefan , Navarre Pierre , Hammer Niels 
Published: August 2021

AbstractBackgroundRehabilitation following anterior cruciate ligament (ACL) reconstructions is based mainly on comprehensive progressive exercise programmes using a multi-dimensional approach. Elastic knee sleeves may be useful adjuncts to rehabilitation. The aim of this study was to determine the immediate and 6-week effects of wearing a knee sleeve on person-reported outcomes and function in participants who had undergone an ACL reconstruction and who had residual self-reported functional limitations.MethodsIndividuals with ACL reconstruction in the previous 6 months to 5 years were recruited. Immediate effects of a commercially-available elastic knee sleeve on single-leg horizontal hop distance were explored using a cross-over design. Following this first session, participants were randomised into a Control Group and a Sleeve Group who wore the sleeve for 6 weeks, at least 1 h daily. Outcome measures for the randomised clinical trial (RCT) were the International Knee Documentation Classification Subjective Knee Form (IKDC-SKF) score, the single-leg horizontal hop distance, and isokinetic quadriceps and hamstring peak torque. Linear mixed models were used to determine random effects. Where both limbs were measured at multiple time points, a random measurement occasion effect nested within participant was used.ResultsThirty-four individuals (16 women) with ACL reconstruction completed the cross-over trial. Hop distance for the injured side during the sleeve condition increased by 3.6 % (95 % CI 0.4–6.8 %,p = 0.025). There was no evidence of differential changes between groups for the IKDC-SKF (Sleeve Groupn = 15; Control Groupn = 16;p = 0.327), or relative improvement in the injured side compared to the uninjured side for the physical performance measures (Sleeve Groupn = 12, Control Groupn = 12; three-way interactionp = 0.533 [hop distance], 0.381 [quadriceps isokinetic peak torque], and 0.592 [hamstring isokinetic peak torque]).ConclusionsSingle-leg hop distance of the ACL reconstructed side improved when wearing a knee sleeve. Wearing the knee sleeve over 6 weeks did not lead to enhanced improvements in self-reported knee function, hop distance and thigh muscle strength compared to the control group.Trial registrationThe trial was prospectively registered with the Australia New Zealand Clinical Trials Registry No:ACTRN12618001083280, 28 June 2018.
Endogenous estrogen exposure and chronic kidney disease; a 15-year prospective cohort study
Authors: Farahmand Maryam , Ramezani Tehrani Fahimeh , Khalili Davood , Cheraghi Leila , Azizi Fereidoun 
Published: August 2021

Abstract
Background
Despite strong evidence demonstrating the role of estrogen as a protective factor for kidney function in women, limited data are available regarding the influence of endogenous estrogen exposure (EEE) on chronic kidney disease (CKD). The present study aimed to assess the incidence of CKD in women with various levels of EEE.

Methods
In a prospective population-based study over a 15-year follow-up, a total of 3043 eligible women aged 30–70 years, participating in Tehran-Lipid and Glucose-Study were recruited and divided into two groups (EEE < 11 and EEE ≥ 11 years). EEE calculated based on age at menarche, age at menopause, number and duration of pregnancies, lactation, and duration of oral contraceptive use after excluding the progesterone dominant phase of the menstrual cycle. Cox’s proportional hazards model was applied to estimate the hazard ratio of CKD between the study groups, after adjusting for confounders.

Results
The total cumulative incidence rate of CKD was 50.1 per 1000 person years; 95% CI: 47.7–52.6); this was 53.9 (95%CI, 50.2–57.8) and 47.1 (95%CI, 44.0–50.4) per 1000 person years in women with EEE < 11 and EEE ≥ 11 years, respectively. The model adjusted for age, BMI, smoking, hypertension, and diabetes showed that the hazard ratio (HR) of incidence CKD in women with EEE < 11 compare to those with EEE ≥ 11 years in the subgroup of women aged< 45 years was 2.66(95% CI, 2.2, 3.2), whereas, in the subgroup aged ≥45 years, it was 1.22 (95% CI, 1.04, 1.4).

Conclusion
This study shows a higher HR of CKD incidence in women with low EEE levels in their later life. Screening of these women for CKD may be recommended.
Role of obesity and hypertension in the incidence of atrial fibrillation, ischaemic heart disease and heart failure in patients with diabetes
Authors: Sala Lucia La , Pontiroli Antonio E. 
Published: August 2021

AbstractIn a cohort study performed using primary care databases in a General Practitioners Network, Groenewegen et al. report a clear association between diabetes and incidence of the major chronic progressive heart diseases, notably heart failure (Groenewegen et al. in Cardiovasc Diabetol 20:123, 2021). However, no mention is made of body mass index and hypertension in the methods or in the results. Obesity is linked to hypertension and hypertension is a major risk factor for all cardiovascular diseases, and prospective studies have shown that obesity and hypertension contribute significantly to atrial fibrillation in persons with diabetes. The data would be improved by assessing the role of obesity and of hypertension in the incidence of heart diseases in these patients. This would also lead to a better and personalized treatment of patients with diabetes, for instance through weight loss and intensification of treatment of hypertension, to modify the incidence of atrial fibrillation, ischaemic heart disease and heart failure.
Alterations in complex lipids in tumor tissue of patients with colorectal cancer
Authors: Pakiet Alicja , Sikora Kinga , Kobiela Jarek , Rostkowska Olga , Mika Adriana , Sledzinski Tomasz 
Published: August 2021

Abstract
Background
Accumulating evidence indicates alterations in lipid metabolism and lipid composition in neoplastic tissue. Earlier nuclear magnetic resonance studies showed that the contents of major lipid groups, such as triacylglycerols, phospholipids and cholesterol, are changed in colon cancer tissue.

Methods
In this study, a more detailed analysis of lipids in cancer and tumor adjacent tissues from colorectal cancer patients, using liquid chromatography–mass spectrometry, allowed for comparison of 199 different lipids between cancer tissue and tumor adjacent tissue using principal component analysis.

Results
Significant differences were found in 67 lipid compounds between the two types of tissue; many of these lipid compounds are bioactive lipids such as ceramides, lysophospholipids or sterols and can influence the development of cancer. Additionally, increased levels of phospholipids and sphingolipids were present, which are major components of the cell membrane, and increases in these lipids can lead to changes in cell membrane properties.

Conclusions
This study showed that many complex lipids are significantly increased or decreased in colon cancer tissue, reflecting significant alterations in lipid metabolism. This knowledge can be used for the selection of potential molecular targets of novel anticancer strategies based on the modulation of lipid metabolism and the composition of the cell membrane in colorectal cancer cells.
Platelet membrane-camouflaged silver metal-organic framework drug system against infections caused by methicillin-resistant Staphylococcus aureus
Authors: Huang Rong , Cai Guang-Qing , Li Jian , Li Xi-Sheng , Liu Hai-Ting , Shang Xue-Ling , Zhou Jian-Dang , Nie Xin-Min , Gui Rong 
Published: August 2021

AbstractBackgroundDue to the intelligent survival strategy and self-preservation of methicillin-resistantStaphylococcus aureus(MRSA), many antibiotics are ineffective in treating MRSA infections. Nano-drug delivery systems have emerged as a new method to overcome this barrier. The aim of this study was to construct a novel nano-drug delivery system for the treatment of MRSA infection, and to evaluate the therapeutic effect and biotoxicity of this system. We prepared a nano silver metal-organic framework using 2-methylimidazole as ligand and silver nitrate as ion provider. Vancomycin (Vanc) was loaded with Ag-MOF, and nano-sized platelet vesicles were prepared to encapsulate Ag-MOF-Vanc, thus forming the novel platelet membrane-camouflaged nanoparticles PLT@Ag-MOF-Vanc.ResultsThe synthesized Ag-MOF particles had uniform size and shape of radiating corona. The mean nanoparticle size and zeta potential of PLT@Ag-MOF-Vanc were 148 nm and − 25.6 mV, respectively. The encapsulation efficiency (EE) and loading efficiency (LE) of vancomycin were 81.0 and 64.7 %, respectively. PLT@Ag-MOF-Vanc was shown to be a pH-responsive nano-drug delivery system with good biocompatibility. Ag-MOF had a good inhibitory effect on the growth of three common clinical strains (Escherichia coli,Pseudomonas aeruginosa, andS. aureus). PLT@Ag-MOF-Vanc showed better antibacterial activity against common clinical strains in vitro than free vancomycin. PLT@Ag-MOF-Vanc killed MRSA through multiple approaches, including interfering with the metabolism of bacteria, catalyzing reactive oxygen species production, destroying the integrity of cell membrane, and inhibiting biofilm formation. Due to the encapsulation of the platelet membrane, PLT@Ag-MOF-Vanc can bind to the surface of the MRSA bacteria and the sites of MRSA infection. PLT@Ag-MOF-Vanc had a good anti-infective effect in mouse MRSA pneumonia model, which was significantly superior to free vancomycin, and has no obvious toxicity.ConclusionsPLT@Ag-MOF-Vanc is a novel effective targeted drug delivery system, which is expected to be used safely in anti-infective therapy of MRSA.Graphic abstract