bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identification and validation of a ferroptosis-related signature for prediction of the prognosis and tumor microenvironment in patients with chromophobe renal cell carcinoma
Authors: Liu Shuai , Yao Yu , Hou Mingyu , Mei Jingchang , Sun Lijiang , Zhang Guiming 
Published: November 2023

Abstract
Background
Ferroptosis is a novel form of regulated cell death that is different from other forms, which has an important role in tumor growth inhibition. The purpose of this study was to construct and validate a prognostic signature related to ferroptosis in chromophobe renal cell carcinoma (ChRCC) and to explore its role in immune cell infiltration and systemic therapy.

Methods
The gene expression profiles of ChRCC patients obtained from The Cancer Genome Atlas (TCGA) database were used to identify differentially expressed prognostic ferroptosis-related genes (FRGs) by univariate Cox proportional hazards analyses. Ferroptosis molecular subtypes were obtained by consensus clustering analysis. The FRG-based signature in the training set was established by least absolute shrinkage and selection operator analysis and verified in the testing set. The association between molecular subtypes and the prognostic signature and immune microenvironment was explored to predict responses to immunotherapy. Immunohistochemistry was used to verify expression of the FRG-based signature externally.

Results
ChRCC patients were divided into two FRG subtypes. Two FRGs (TFRC and SLC7A11) were identified to construct the prognostic signature. The high-risk group and cluster 2 had worse overall survival than the low-risk group and cluster 1, respectively. The low-risk group and cluster 1 had higher levels of immune cell infiltration and expression of MHC and immune checkpoint molecules than the high-risk group and cluster 2. The risk score was a predictor of overall survival and had a good predictive ability, which was verified in the testing set and evaluated by ROC and calibration curves. The high-risk group had a higher tumor mutation burden. The different sensitivities of targeted drugs in patients with different risks were evaluated. External immunohistochemical analysis showed that TFRC and SLC7A11 were highly expressed in tumor tissues compared with para-cancer normal tissues, and the expression level was significantly associated with a more advanced stage and worse cancer-specific survival.

Conclusions
An FRG signature was identified and validated to predict the clinicopathological features and prognosis of ChRCC. A significant association between the signature and immune cell infiltration, immune checkpoint expression, and drug response is helpful to guide comprehensive treatment of ChRCC.
Self-esteem in new light: a qualitative study of experiences of internet-based cognitive behaviour therapy for low self-esteem in adolescents
Authors: Berg Matilda , Klemetz Helena , Lindegaard Tomas , Andersson Gerhard 
Published: November 2023

Abstract
Background
Low self-esteem is common and can be impairing for adolescents. Treatments that primarily target low-esteem are lacking. Internet-delivered cognitive behaviour therapy (ICBT) is a treatment that can be used for adolescents but ICBT is yet to be evaluated for low self-esteem using qualitative methods. The aim of this study was to investigate experiences of participating in a novel ICBT treatment for adolescents suffering from low self-esteem.

Method
Fifteen adolescent girls who had received ICBT consented to participate in a semi-structured qualitative telephone interview at post-treatment. Data were analysed and categorised using inductive Thematic Analysis.

Results
Four overarching themes were identified; (1) Increased awareness and agency in difficult situations, (2) Enhanced self-image, (3) Unique but not alone, and (4) Widened understanding and new perspectives. Participants reported positive changes in their thinking and behaviour, as well as helpful learning experiences in relation to themselves and their self-esteem. For instance, participants described a more self-accepting attitude, learned how to manage negative thoughts, and experienced an increased sense of connection to others.

Conclusion
The results suggest that ICBT is experienced as helpful and will inform further use and development of ICBT for low self-esteem. Future studies should validate and further evaluate experiences of ICBT for low self-esteem in other settings and in particular for boys as the study only include female participants.
Using sequential bone cutting to titrate soft tissue balance in total knee arthroplasty effectively minimizes soft tissue release
Authors: Chen Mingxue , Yang Dejin , Shao Hongyi , Rui Shouwei , Cao Yuefeng , Zhou Yixin 
Published: November 2023

Abstract
Background
Achieving soft tissue balance while maintaining limb alignment within acceptable boundaries is crucial for successful total knee arthroplasty (TKA). We proposed a sequential bone cutting (SBC) technique to titrate the soft tissue balance in robot-assisted TKA to achieve the desired balance with minimum soft tissue release.

Methods
In total, 106 robot-assisted TKAs using the SBC technique were included. The preoperative hip-knee-ankle angle (HKA) was < 10° in 76 and ≥ 10° in 30 knees. The gaps were initially balanced with the help of the pre-resection balancing provided by the robotic system. Soft tissue balance and alignment were quantitatively measured after the initial bone cutting and final bone cutting. Additional adjustments (bone recuts and soft tissue releases) required to address soft tissue imbalance after initial bone cutting were recorded. The frequencies of soft tissue releases, soft tissue balance, and resultant alignment ≤ 3° were compared between non-severe (HKA < 10°) and severe deformity (HKA ≥ 10°) groups.

Results
Soft tissue balance was achieved in 45 knees (42.5%) after initial bone cutting and in 93 knees (87.7%) after final balancing. The postoperative alignment was within 3° from neutral in 87 knees (82.1%) and 3–5° in 17 knees (16.0%). For unbalanced knees (n = 61) after initial bone cutting, soft tissue release was avoided by SBC in 37 knees (60.7%) and was deemed necessary in 24 knees (39.3%). Soft tissue release was more likely to be avoided in the non-severe deformity cohort (86.8% [33 of 38]) than in the severe deformity cohort (17.4% [4 of 23]; p < 0.001). The non-severe deformity cohort showed a significantly higher rate of resultant alignment ≤ 3° from neutral than the severe deformity cohort (90.8% vs. 60.0%; p < 0.001).

Conclusion
Pre-resection balancing is inappropriate to ensure soft tissue balance. The SBC technique is effective in minimizing soft tissue release while maintaining overall alignment within acceptable boundaries.
Comparison of endoscopic bilateral areolar and robotic-assisted bilateral axillo-breast approach thyroidectomy in differentiated thyroid carcinoma: a propensity-matched retrospective cohort study
Authors: Fu Xiaokang , Ma Yunhan , Hou Yiqi , Liu Yuan , Zheng Luming 
Published: November 2023

Abstract
Background
Robot-assisted and endoscopic thyroidectomy are superior to conventional open thyroidectomy in improving cosmetic outcomes and postoperative quality of life. The procedure of these thyroidectomies was similar in terms of surgical view, feasibility, and invasiveness. However, it remains uncertain whether the robotic-assisted bilateral axilla-breast approach (BABA) was superior to the endoscopic bilateral areolar approach (BAA) thyroidectomy. This study aimed to investigate the clinical benefit of these two surgical procedures to evaluate the difference between these two surgical procedures by comparing the pathological and surgical outcomes of endoscopic BAA and robotic-assisted BABA thyroidectomy in differentiated thyroid carcinoma.

Methods
From November 2018 to September 2021, 278 patients with differentiated thyroid carcinoma underwent BABA robot-assisted, and 49 underwent BAA approach endoscopic thyroidectomy. Of these patients, we analyzed 42 and 135 patients of endoscopic and robotic matched pairs using 1:4 propensity score matching and retrospective cohort study methods. These two groups were retrospectively compared by surgical outcomes, clinicopathological characteristics, and postoperative complications.

Results
The mean operation time was significantly longer in the EG than in the RG (p < 0.001), The number of retrieved lymph nodes was significantly lower in the ET group than in the RT group (p < 0.001). The mean maximum diameter of the thyroid was more expansive in the EG than in the RG (p = 0.04). There were no significant differences in the total drainage amount and drain insertion days between the two groups (p = 0.241, p = 0.316, respectively). Both groups showed that cosmetic satisfaction (p = 0.837) and pain score (p = 0.077) were similar. There were no significant differences in complication frequencies.

Conclusion
Robotic and endoscopic thyroidectomy are similar minimally invasive thyroid surgeries, each with its advantages, both of which can achieve the expected surgical outcomes.

Trial registration
Retrospectively registered.
Double J stent combined with pyelostomy tube in pediatric laparoscopic pyeloplasty: a 5-year clinical experience in a single center
Authors: Chen Zhiqiang , Wang Yunjin , Wu Changwei , Chen Hong , Cui Xu , Zhou Chaoming 
Published: November 2023

AbstractObjectiveTo compare the outcome of using a double J (DJ) stent combined with pyelostomy tube with a DJ stent alone in laparoscopic pyeloplasty (LP) for pediatric ureteropelvic junction obstruction (UPJO).MethodsA retrospective review of all patients with UPJO treated with LP between January 2017 and November 2021 was conducted in our center. According to different postoperative drainage methods patients were divided into a DJ stent group (52 cases) and a DJ stent combined with pyelostomy tube group (combination group, 41 cases). Operative time, bleeding volume, perirenal drainage stent removal time, postoperative hospital stay, postoperative complications, and renal function recovery were compared between the two groups. Renal ultrasound and diuretic renogram (DR) were used for preoperative and postoperative follow-up.ResultsA total of 52 patients were in the DJ stent group and 41 patients in the combination group. The mean hospital stay was 6.46 ± 2.66 days in the DJ stent group and 5.22 ± 1.63 days in the combination group (p < 0.05). Postoperative complications developed in 14 out of 52 patients in the DJ stent group (26.9%), while complications developed in 8 out of 41 patients in the combination group (19.5%) (p > 0.05). Non-catheter-related complications developed in 10/52 patients in the DJ stent group (19.2%) and only 1/41 patients in the combination group (2.4%) (p < 0.05). The renal function and renal cortex thickness in both groups were improved.ConclusionBoth the DJ stent drainage and the DJ stent combined with pyelostomy drainage are safe and effective. We should fully consider the patient’s preoperative and intraoperative conditions and choose appropriate drainage methods. A DJ stent combined with pyelostomy tube can reduce non-catheter related complications, facilitate postoperative recovery, and the hospital stay was significantly shorter than the DJ stent group. However, it is necessary to pay attention to the nursing treatment of the pyelostomy tube and guard against the occurrence of pyelostomy tube shedding.
Neutrophil-to-lymphocyte ratio as a promising non-invasive biomarker for symptom assessment and diagnosis of interstitial cystitis/bladder pain syndrome
Authors: Ke Hanwei , Zhu Lin , Wang Qi , Xu Kexin 
Published: November 2023

Abstract
Background
Our study aims to investigate the association between the serum neutrophil-to-lymphocyte ratio (NLR) and interstitial cystitis (IC), as well as to explore whether NLR can serve as a diagnostic marker to distinguish IC from overactive bladder (OAB). We postulate that elevated NLR levels are intricately linked to the onset and clinical presentation of IC, and that the NLR profiles in OAB patients exhibit discernible disparities from those of IC patients.

Methods
In a retrospective analysis, we scrutinized the medical records of 70 women diagnosed with IC/BPS, 20 women diagnosed with OAB, and a randomly selected cohort of 150 healthy women who underwent physical examinations during the same temporal frame. A comprehensive panel of blood tests was administered to all participants, and NLR was determined through the calculation of the neutrophil-to-lymphocyte proportion. Additionally, symptom assessment questionnaires and urination diaries were collected from IC/BPS patients.

Results
NLR levels exhibited significant distinctions among the IC/BPS, Normal, and OAB groups (P < 0.001). Within the IC/BPS group, Hunner type interstitial cystitis (HIC) demonstrated notably divergent NLR levels in comparison to non-Hunner type interstitial cystitis (NHIC) (p = 0.001). Additionally, we observed positive correlations between NLR and Nighttime voids (r = 0.268, p = 0.029), ICPI (r = 0.327, p = 0.007), ICSI (r = 0.369, p = 0.002), PUF Symptom Scale (r = 0.263, p = 0.032), and PUF (r = 0.297, p = 0.015). The receiver operating characteristic (ROC) analysis yielded an area under the curve (AUC) of 0.765 for NLR in distinguishing IC/BPS from the Normal group, and an AUC of 0.707 in discerning IC from OAB. Furthermore, the AUC of NLR was 0.723 for identifying HIC and NHIC patients.

Conclusions
Our study unveils the prospective utility of serum NLR as a promising biomarker for both diagnostic and symptom evaluation purposes in IC/BPS patients. It effectively demarcates this condition from OAB, which presents with similar clinical features. Consequently, NLR demonstrates potential as a non-invasive diagnostic instrument to distinguish between the subtypes of IC, particularly HIC and NHIC, which manifest similar symptoms within the IC/BPS spectrum.
Comparative diagnostic accuracy of the IOTA SRR and LR2 scoring systems for discriminating between malignant and Benign Adnexal masses by junior physicians in Chinese patients: a retrospective observational study
Authors: Tian Cai , Wen Shu-Bin , Zhao Cong-Ying , Yan Xiao-Nan , Du Jie-Xian 
Published: November 2023

Abstract
Background
The accuracy of ultrasound in distinguishing benign from malignant adnexal masses is highly correlated with the experience of ultrasound physicians. In China, most of ultrasound differentiation is done by junior physicians.

Purpose
To compare the diagnostic performance of the International Ovarian Tumour Analysis (IOTA) Simple Rules Risk (SRR) and IOTA Logistic Regression Model 2 (LR2) scoring systems in Chinese patients with adnexal masses.

Methods
Retrospective analysis of ovarian cancer tumor patients who underwent surgery at a hospital in China from January 2016 to December 2021. Screening patients with at least one adnexal mass on inclusion and exclusion criteria. Two trained junior physicians evaluated each mass using the two scoring systems. A receiver operating characteristic curve was used to test the diagnostic performance of each system.

Results
A total of 144 adnexal masses were retrospectively collected. Forty masses were histologically diagnosed as malignant. Compared with premenopausal women, postmenopausal women had a much higher rate of malignant masses. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) of the SRR was 97.5% (95% CI: 86.8 -99.9%), 82.7% (95% CI: 74.0 -89.4%), 68.4% (95% CI: 58.7 -76.8%) and 98.9% (95% CI: 92.5 -99.8%). The sensitivity, specificity, PPV, NPV of the LR2 were 90.0% (95% CI: 76.5 -97.2%), 89.4% (95% CI: 81.9 -94.6%), 76.6% (95% CI: 65.0 -85.2%), and 95.9% (95% CI: 90.2 -98.3%). There was good agreement between two scoring systems, with 84.03% total agreement and a kappa value of 0.783 (95% CI: 0.70-0.864). The areas under the curve for predicting malignant tumours using SRR and LR2 were similar for all patients (P > 0.05 ).

Conclusion
The two scoring systems can effectively distinguish benign from malignant adnexal masses. Both scoring systems have high diagnostic efficacy, and diagnostic efficacy is stable, which can provide an important reference for clinical decision making.
Factors affecting quality of life in women with breast cancer: a path analysis
Authors: Faroughi Farnaz , Fathnezhad-Kazemi Azita , Sarbakhsh Parvin 
Published: November 2023

Abstract
Background
Breast cancer may negatively affect people’s quality of life. We investigated the predictors of quality of life in women with breast cancer with the mediating role of resilience.

Method
In a cross-sectional design, 218 patients completed a survey referring to the Valiasr International Hospital Oncology Center in Tabriz, Iran. Four validated self-report measures assessed HRQoL as measured by the SF-12, Resilience, Hope, and Perceived Social Support (MSPs). The mediating roles of resilience between HRQoL and the fitness of the proposed model were investigated using path analysis. SPSS version 24 software and Lisrel 8.8 software were used for data analysis.

Results
The results of path analysis showed that the final model had a good fit to the data (Chi-Square/ degrees of freedom (Normed Chi2) = 2.08, RMSEA = 0.014, goodness fit index = 0.99, both comparative fit index = 0.99 both CFI = 0.99 and IFI = 1). In this model, age and psychosocial factors predicted health-related quality of life.

Conclusions
Age and psychosocial factors especially social support are important components in predicting health-related quality of life among those suffering from breast cancer.
Practice of defensive medicine among surgeons in Ethiopia: cross-sectional study
Authors: Assefa Eskinder Amare , Teferi Yonas Ademe , Alemu Birhanu Nega , Genetu Abraham 
Published: November 2023

Abstract
Background
Defensive medicine is physicians’ deviation from standard medical care which is primarily intended either to reduce or avoid medico legal litigation. Although the Federal Ethics Committee review in Ethiopia has shown that applications for medical/surgical error investigation claims are increasing at an alarming rate, there is no study to date done to estimate the degree of defensive practice done by the physicians with an intention of avoiding this increasing legal claim. This study assessed the practice of defensive medicine among highly litigious disciplines (surgery) and described factors associated with its practice.

Methods
Cross sectional quantitative study using online survey questionnaires was conducted to assess the degree of defensive practice and six factors (age, years of experience, specialty, monthly income, place of practice and previous medico legal history) associated with its practice were assessed among surgeons working in Ethiopia.

Results
A total of 430 surgeons directly received an online survey questionnaire and 236 of them successfully completed the questionnaire making the response rate 51.2%. Nearly half of the study participants (51.7%) were aware of the concept of defensive medicine and 174 (74%) reported performing one form of defensive practice. Twenty-nine (12.3%) of the participants have legal dispute history, though only 1.3% of them ended up in penalty. Avoiding high risk procedures was the commonest defensive act performed by 60% of the participants, followed by ordering tests unnecessarily (52.1%). Multinomial logistic regression model showed that there was no association between age of the participant, place of practice, year of experience and defensive practice. This model also showed that cardiothoracic and vascular surgeons perform less defensively than surgeons with other specialty with P value of 0.02.

Conclusion
The practice of defensive medicine is widespread among surveyed Ethiopian surgeons and further studies are required to objectively estimate the effect of defensive practice on the health care system of the country. Policy makers need to develop strategy towards decreasing this high rate of defensive practice.
Polygenic risk for triglyceride levels in the presence of a high impact rare variant
Authors: Ying Shengjie , Heung Tracy , Thiruvahindrapuram Bhooma , Engchuan Worrawat , Yin Yue , Blagojevic Christina , Zhang Zhaolei , Hegele Robert A. , Yuen Ryan K. C. , Bassett Anne S. 
Published: November 2023

Abstract
Background
Elevated triglyceride (TG) levels are a heritable and modifiable risk factor for cardiovascular disease and have well-established associations with common genetic variation captured in a polygenic risk score (PRS). In young adulthood, the 22q11.2 microdeletion conveys a 2-fold increased risk for mild-moderate hypertriglyceridemia. This study aimed to assess the role of the TG-PRS in individuals with this elevated baseline risk for mild-moderate hypertriglyceridemia.

Methods
We studied a deeply phenotyped cohort of adults (n = 157, median age 34 years) with a 22q11.2 microdeletion and available genome sequencing, lipid level, and other clinical data. The association between a previously developed TG-PRS and TG levels was assessed using a multivariable regression model adjusting for effects of sex, BMI, and other covariates. We also constructed receiver operating characteristic (ROC) curves using logistic regression models to assess the ability of TG-PRS and significant clinical variables to predict mild-moderate hypertriglyceridemia status.

Results
The TG-PRS was a significant predictor of TG-levels (p = 1.52E-04), along with male sex and BMI, in a multivariable model (pmodel = 7.26E-05). The effect of TG-PRS appeared to be slightly stronger in individuals with obesity (BMI ≥ 30) (beta = 0.4617) than without (beta = 0.1778), in a model unadjusted for other covariates (p-interaction = 0.045). Among ROC curves constructed, the inclusion of TG-PRS, sex, and BMI as predictor variables produced the greatest area under the curve (0.749) for classifying those with mild-moderate hypertriglyceridemia, achieving an optimal sensitivity and specificity of 0.746 and 0.707, respectively.

Conclusions
These results demonstrate that in addition to significant effects of sex and BMI, genome-wide common variation captured in a PRS also contributes to the variable expression of the 22q11.2 microdeletion with respect to elevated TG levels.