bluuebunny/crossref_metadata_2025 huggingface dataset:
Conceptual questions about meaning: Divergence or complementarity between cultural-Historical positions?
Authors: Coni Santana Ramiro Rodrigues , Ristum Marilena
Published: December 2022

Meaning was a core concept in the development of Lev Vygotsky’s cultural-historical approach. Considering the incompleteness of his work, other authors have adopted different directions in the seminal discussion on meaning as a unit of thought and language. Based on Rychlak’s ideas, this paper proposes dialogues between three culturally based authors—González Rey, Jaan Valsiner, and Jerome Bruner—reviewing relations of complementarity and synthesis to understand the concept of meaning. We call attention to the uniqueness of each theoretical approach, avoiding the simplification of their assumptions or the intention of reducing them as if they only dealt with the same concept with different words. The comparison between authors brings about a notion of cultural, historical, narrative meaning grounded on the singular-collective dialectic, endowed with an affective dimension, and the access to which implies the adoption of a qualitative and idiographic methodology. Based on common grounds, we coordinated different understandings, and attempted to devise a concept comprising inter-focus features, while meeting the criteria for a satisfactory theoretical formulation, such as its capacity of description, explanation, and prediction, its logical consistency, its perspective or possibility of generalization, its innovation, inventiveness or fruitful heuristic and, ultimately, its simplicity or parsimony.
Systematic review of research on women and educational leadership in Mainland China, Hong Kong and Taiwan
Authors: Wang Ting , Gao Siyao
Published: December 2022

The purpose of this systematic review is to further our understanding of women and educational leadership knowledge production from three Chinese societies and to contribute to the development of a more diverse global knowledge base in gender and educational leadership and management. A total of 341 articles were identified from 4 electronic databases. We conducted a systematic review of 24 eligible articles that focused on women and educational leadership in Mainland China, Hong Kong and Taiwan, utilised empirical research designs and were published in peer-reviewed English-language journals between 2000 and 2021. This review synthesised six overarching themes, including the underrepresentation of women leaders in schools and universities; barriers for women's career advancement; impact of social-cultural contexts on gender-related leadership; gender stereotypes and gender dynamics; gender-based variation in leadership behaviours; and gender equity legislation and policies. The review reveals that underrepresentation of female leaders is a pervasive problem in both schools and universities across three Chinese societies. Substantial gaps still exist between policies and practices. The study highlights systemic barriers and lack of organisational enablers for women's career advancement. The implications and directions for future studies are discussed.
An Ethics and Social-Justice Approach to Collecting and Using Demographic Data for Psychological Researchers
Authors: Call Christine C. , Eckstrand Kristen L. , Kasparek Steven W. , Boness Cassandra L. , Blatt Lorraine , Jamal-Orozco Nabila , Novacek Derek M. , Foti Dan ,   Scholars for Elevating Equity and Diversity (SEED)
Published: December 2022

The collection and use of demographic data in psychological sciences has the potential to aid in transforming inequities brought about by unjust social conditions toward equity. However, many current methods surrounding demographic data do not achieve this goal. Some methods function to reduce, but not eliminate, inequities, whereas others may perpetuate harmful stereotypes, invalidate minoritized identities, and exclude key groups from research participation or access to disseminated findings. In this article, we aim to (a) review key ethical and social-justice dilemmas inherent to working with demographic data in psychological research and (b) introduce a framework positioned in ethics and social justice to help psychologists and researchers in social-science fields make thoughtful decisions about the collection and use of demographic data. Although demographic data methods vary across subdisciplines and research topics, we assert that these core issues—and solutions—are relevant to all research within the psychological sciences, including basic and applied research. Our overarching aim is to support key stakeholders in psychology (e.g., researchers, funding agencies, journal editors, peer reviewers) in making ethical and socially-just decisions about the collection, analysis, reporting, interpretation, and dissemination of demographic data.
Therapy selection for Hodgkin lymphoma in sickle cell disease: balancing risks and benefits
Authors: Fraley Claire E. , McKinney Christopher , Nuss Rachelle , Franklin Anna R. K.
Published: December 2022

Advances in treatment have reduced mortality from Hodgkin lymphoma; therefore, greater attention should be focused on minimizing the late effects. A variety of risk-adapted treatment regimens exist that prioritize disease presentation but not patient-specific comorbidities. Herein, we describe a patient with sickle cell disease diagnosed with Hodgkin lymphoma and the considerations made in treatment planning to minimize therapy-related acute toxicity and late effects that overlap with the patient’s preexisting sickle cell disease complications.
Generation of a humanized afucosylated BAFF-R antibody with broad activity against human B-cell malignancies
Authors: Dong Zhenyuan , Song Joo Y. , Thieme Elana , Anderson Aaron , Oh Elizabeth , Cheng Wesley A. , Kuang Benjamin Z. , Lee Vincent , Zhang Tiantian , Wang Zhe , Szymura Szymon , Smith D. Lynne , Zhang Jianbing , Nian Weihong , Zheng Xintong , He Feng , Zhou Qing , Cha Soung-chul , Danilov Alexey V. , Qin Hong , Kwak Larry W.
Published: December 2022

B-cell activating factor receptor (BAFF-R) is a mature B-cell survival receptor, which is highly expressed in a wide variety of B-cell malignancies but with minimal expression in immature B cells. These properties make BAFF-R an attractive target for therapy of B-cell lymphomas. We generated a novel humanized anti BAFF-R monoclonal antibody (mAb) with high specificity and potent in vitro and in vivo activity against B-cell lymphomas and leukemias. The humanized variants of an original chimeric BAFF-R mAb retained BAFF-R binding affinity and antibody-dependent cellular cytotoxicity (ADCC) against a panel of human cell lines and primary lymphoma samples. Furthermore, 1 humanized BAFF-R mAb clone and its afucosylated version, glycoengineered to optimize the primary mechanism of action, prolonged survival of immunodeficient mice bearing human tumor cell lines or patient-derived lymphoma xenografts in 3 separate models, compared with controls. Finally, the tissue specificity of this humanized mAb was confirmed against a broad panel of normal human tissues. Taken together, we have identified a robust lead-candidate BAFF-R mAb for clinical development.
Inference about quantitative traits under selection: a Bayesian revisitation for the post-genomic era
Authors: Gianola Daniel , Fernando Rohan L. , Schön Chris C.
Published: December 2022

Background

Selection schemes distort inference when estimating differences between treatments or genetic associations between traits, and may degrade prediction of outcomes, e.g., the expected performance of the progeny of an individual with a certain genotype. If input and output measurements are not collected on random samples, inferences and predictions must be biased to some degree. Our paper revisits inference in quantitative genetics when using samples stemming from some selection process. The approach used integrates the classical notion of fitness with that of missing data. Treatment is fully Bayesian, with inference and prediction dealt with, in an unified manner. While focus is on animal and plant breeding, concepts apply to natural selection as well. Examples based on real data and stylized models illustrate how selection can be accounted for in four different situations, and sometimes without success.

Results

Our flexible “soft selection” setting helps to diagnose the extent to which selection can be ignored. The clear connection between probability of missingness and the concept of fitness in stylized selection scenarios is highlighted. It is not realistic to assume that a fixed selection threshold t holds in conceptual replication, as the chance of selection depends on observed and unobserved data, and on unequal amounts of information over individuals, aspects that a “soft” selection representation addresses explicitly. There does not seem to be a general prescription to accommodate potential distortions due to selection. In structures that combine cross-sectional, longitudinal and multi-trait data such as in animal breeding, balance is the exception rather than the rule. The Bayesian approach provides an integrated answer to inference, prediction and model choice under selection that goes beyond the likelihood-based approach, where breeding values are inferred indirectly.

Conclusions

The approach used here for inference and prediction under selection may or may not yield the best possible answers. One may believe that selection has been accounted for diligently, but the central problem of whether statistical inferences are good or bad does not have an unambiguous solution. On the other hand, the quality of predictions can be gauged empirically via appropriate training-testing of competing methods.
Genetic characteristics of colostrum refractive index and its use as a proxy for the concentration of immunoglobulins in Holstein cattle
Authors: Costa Angela , Visentin Giulio , Goi Arianna , De Marchi Massimo , Penasa Mauro
Published: December 2022

Background

Colostral concentration of immunoglobulins (Ig) is crucial for the passive transfer of antibodies from the cow to the new-born calf. Direct determination of Ig by the gold standard radial immunodiffusion method is demanding in terms of time and costs. For this reason, a refractometer is commonly used at the farm level for an indirect estimation of colostrum quality, which is given as the Ig concentration. In this study, colostrum samples were collected from 548 Italian Holstein cows within 6 h of calving. The refractive index (BRIX, %) of these samples was assessed using a portable optical refractometer, as well as the concentration of total protein, IgG, IgA, and IgM by radial immunodiffusion. A four-trait animal model was used to estimate genetic parameters for BRIX and the different immunoglobulin isotypes. A receiver operating characteristic analysis was carried out to evaluate the BRIX diagnostic accuracy.

Results

Colostral BRIX was moderately heritable (0.26) and its genetic and phenotypic correlations with IgG (0.91, 0.78), IgA (0.57, 0.57), and IgM (0.71, 0.61) were all positive and of similar order, although the genetic correlations were generally higher than the phenotypic correlations. Low-quality colostrum samples, defined as those with an IgG concentration lower than 50 g/L, were accurately identified by the refractive index on the BRIX scale, with an area under the curve of 0.90.

Conclusions

The use of a refractometer is recommended on dairy farms to produce a proxy for colostral Ig concentration. BRIX is a useful phenotyping tool that can be used in cattle to improve the quality of colostrum for first feeding of calves through both traditional genetic and genomic strategies. Improving colostrum quality will reduce the incidence of failure of passive transfer of immunity in young stock.
De novo genome assembly and genome skims reveal LTRs dominate the genome of a limestone endemic Mountainsnail (Oreohelix idahoensis)
Authors: Linscott T. Mason , González-González Andrea , Hirano Takahiro , Parent Christine E.
Published: December 2022

Background

Calcareous outcrops, rocky areas composed of calcium carbonate (CaCO3), often host a diverse, specialized, and threatened biomineralizing fauna. Despite the repeated evolution of physiological and morphological adaptations to colonize these mineral rich substrates, there is a lack of genomic resources for calcareous rock endemic species. This has hampered our ability to understand the genomic mechanisms underlying calcareous rock specialization and manage these threatened species.

Results

Here, we present a new draft genome assembly of the threatened limestone endemic land snail Oreohelix idahoensis and genome skim data for two other Oreohelix species. The O. idahoensis genome assembly (scaffold N50: 404.19 kb; 86.6% BUSCO genes) is the largest (~ 5.4 Gb) and most repetitive mollusc genome assembled to date (85.74% assembly size). The repetitive landscape was unusually dominated by an expansion of long terminal repeat (LTR) transposable elements (57.73% assembly size) which have shaped the evolution genome size, gene composition through retrotransposition of host genes, and ectopic recombination. Genome skims revealed repeat content is more than 2–3 fold higher in limestone endemic O. idahoensis compared to non-calcareous Oreohelix species. Gene family size analysis revealed stress and biomineralization genes have expanded significantly in the O. idahoensis genome.

Conclusions

Hundreds of threatened land snail species are endemic to calcareous rock regions but there are very few genomic resources available to guide their conservation or determine the genomic architecture underlying CaCO3 resource specialization. Our study provides one of the first high quality draft genomes of a calcareous rock endemic land snail which will serve as a foundation for the conservation genomics of this threatened species and for other groups. The high proportion and activity of LTRs in the O. idahoensis genome is unprecedented in molluscan genomics and sheds new light how transposable element content can vary across molluscs. The genomic resources reported here will enable further studies of the genomic mechanisms underlying calcareous rock specialization and the evolution of transposable element content across molluscs.
Leaf transcriptome analysis of Medicago ruthenica revealed its response and adaptive strategy to drought and drought recovery
Authors: Wu Rina , Xu Bo , Shi Fengling
Published: December 2022

Background

Drought is one of the main causes of losses in forage crop yield and animal production. Medicago ruthenica (L.) cv. Zhilixing is a high-yielding alfalfa cultivar also known for its high tolerance to drought. We analyzed the transcriptome profile of this cultivar throughout drought stress and recovery and we were able to describe its phased response through the expression profiles of overlapping gene networks and drought-specific genes.

Results

The ABA and auxin signal transduction pathways are overlapping pathways in response to drought and drought recovery in forage crops. Medicago ruthenica (L.) cv. Zhilixing adopts different strategies at different degrees of drought stress. On the 9th day of drought, transcriptional regulations related to osmoregulation are enhanced mainly through increased activities of carbohydrate and amino acid metabolism, while photosynthetic activities were reduced to slow down growth. With drought prolonging, on the 12th day of drought, the synthesis of proline and other stored organic substances was suppressed in general. After recovery, Medicago ruthenica synthesizes flavonoids through the flavonoid biosynthesis pathway to remove accumulated ROS and repair the oxidative damage from water stress. In addition, the regulation of circadian rhythm seems to accelerate the drought recovery process.

Conclusions

Medicago ruthenica adapts to drought by regulating the osmoregulatory system and photosynthesis, which appears to involve the ABA and auxin signaling pathways as key regulators. Furthermore, the synthesis of flavonoids and the regulation of the circadian rhythm can accelerate the recovery process. These results enriched our knowledge of molecular responses to drought and drought recovery in Medicago ruthenica and provide useful information for the development of new legume forage grass varieties with improved adaptability to drought stress.
Postharvest chitosan-arginine nanoparticles application ameliorates chilling injury in plum fruit during cold storage by enhancing ROS scavenging system activity
Authors: Mahmoudi Roghayeh , Razavi Farhang , Rabiei Vali , Palou Lluís , Gohari Gholamreza
Published: December 2022

Background

Plum (Prunus domesticaL.) has a short shelf-life period due to its high respiration rate and is sensitive to low storage temperatures, which can lead to the appearance of chilling injury symptoms. In this investigation, we applied new coating treatments based on chitosan (CTS) and arginine (Arg) to plum fruit (cv. ‘Stanley’).

Results

Fruit were treated with distilled water (control), Arg at 0.25 and 0.5 mM, CTS at 1% (w/v) or Arg-coated CTS nanoparticles (CTS-Arg NPs) at 0.5 and 1% (w/v), and then stored at 1 °C for days. The application of CTS-Arg NPs at 0.5% attenuated chilling injury, which was accompanied by accumulation of proline, reduced levels of electrolyte leakage and malondialdehyde, as well as suppressed the activity of polyphenol oxidase. Plums coated with CTS-Arg NPs (0.5%) showed higher accumulation of phenols, flavonoids and anthocyanins, due to the higher activity of phenylalanine ammonia-lyase, which in turn resulted in higher DPPH scavenging capacity. In addition, CTS-Arg NPs (0.5%) treatment delayed plum weight loss and retained fruit firmness and ascorbic acid content in comparison to control fruit. Furthermore, plums treated with CTS-Arg NPs exhibited lower H2O2accumulation than control fruit due to higher activity of antioxidant enzymes, including CAT, POD, APX and SOD.

Conclusions

The present findings show that CTS-Arg NPs (0.5%) were the most effective treatment in delaying chilling injury and prolonging the shelf life of plum fruit.
Prevalence of the metabolic syndrome and associated factors among inpatients with severe mental illness in Botswana: a cross-sectional study
Authors: Tsima Billy M. , Opondo Philip , Mosepele Mosepele , Mautle Emang , Bilker Warren B. , Gross Robert
Published: December 2022

Introduction

The metabolic syndrome, a cluster of inter-related risk factors for cardiovascular diseases is highly prevalent among individuals with obesity and sedentary lifestyle. Chronic psychiatric disorders such as severe mental illness are associated with increased risk for cardiovascular diseases. We aimed to assess the prevalence and correlates of metabolic syndrome among inpatients with severe mental illness in a resource limited setting with high HIV prevalence.

Methods

This was a cross-sectional study among adult inpatients at a referral psychiatric hospital in Botswana. We used convenience sampling to enrol participants available at the time of the study. The National Cholesterol Education Program Adult Treatment Panel-III (NCEP-ATP III) criteria was used to define the metabolic syndrome. Data were analysed using descriptive statistics as well as multiple logistic regression modelling.

Results

A total of 137 participants were enrolled. Of these, 119 (87%) had complete data for the main analysis. The overall prevalence of metabolic syndrome was 22.6% (95% CI 15.9, 30.6) and did not differ significantly by gender or HIV status. Age was significantly associated with the risk of having the metabolic syndrome while gender, body mass index, HIV status, and days of moderate physical activity were not.

Conclusion

There was a moderately high prevalence of metabolic syndrome. Thus, the management of individuals with severe mental illness in resource limited settings should include assessment of cardiovascular risk and target modifiable risk factors in this population. Consideration for the patient’s age should be made when rationalizing the limited resources available for assessing metabolic syndrome among patients with severe mental illness.
Exploring the impact of indication on variation in rates of intrapartum caesarean section in six Palestinian hospitals: a prospective cohort study
Authors: Zimmo Mohammed W. , Laine Katariina , Hassan Sahar , Bottcher Bettina , Fosse Erik , Ali-Masri Hadil , Zimmo Khaled , Falk Ragnhild Sørum , Lieng Marit , Vikanes Ase
Published: December 2022

Background

Caesarean section rates are rising globally. No specific caesarian section rate at either country-level or hospital-level was recommended. In Palestinian government hospitals, nearly one-fourth of all births were caesarean sections, ranging from 14.5 to 35.6%. Our aim was to assess whether variation in odds for intrapartum caesarean section in six Palestinian government hospitals can be explained by differences in indications.

Methods

Data on maternal and fetal health were collected prospectively for all women scheduled for vaginal delivery during the period from 1st March 2015 to 30th November 2016 in six government hospitals in Palestine. Comparisons of proportions in sociodemographic, antenatal obstetric characteristics and indications by the hospital were tested by χ2 test and differences in means by one-way ANOVA analysis. The odds for intrapartum caesarean section were estimated by logistic regression. The amount of explained variance was estimated by Nagelkerke R square.

Results

Out of 51,041 women, 4724 (9.3%) underwent intrapartum caesarean section. The prevalence of intrapartum caesarean section varied across hospitals; from 7.6 to 22.1% in nulliparous, and from 5.8 to 14.1% among parous women. The most common indications were fetal distress and failure to progress in nulliparous, and previous caesarean section with an additional obstetric indication among parous women. Adjusted ORs for intrapartum caesarean section among nulliparous women ranged from 0.42 (95% CI 0.31 to 0.57) to 2.41 (95% CI 1.70 to 3.40) compared to the reference hospital, and from 0.50 (95% CI 0.40–0.63) to 2.07 (95% CI 1.61 to 2.67) among parous women. Indications explained 58 and 66% of the variation in intrapartum caesarean section among nulliparous and parous women, respectively.

Conclusion

The differences in odds for intrapartum caesarean section among hospitals could not be fully explained by differences in indications. Further investigations on provider related factors as well as maternal and fetal outcomes in different hospitals are necessary.
Prognostic value of a modified systemic inflammation score in breast cancer patients who underwent neoadjuvant chemotherapy
Authors: Jiang Cong , Xiu Yuting , Yu Xiao , Qiao Kun , Zhang Shiyuan , Huang Yuanxi
Published: December 2022

Background and purpose

The modified systemic inflammation score (mSIS) system, which is constructed based on the neutrophil to lymphocyte ratio (NLR) and albumin (Alb), has not been applied to evaluate the prognosis of malignant breast cancer patients who underwent neoadjuvant chemotherapy (NAC). The present study aimed to explore the relationship between the mSIS and overall survival (OS), disease-free survival (DFS) and pathological complete response (pCR).

Methods

A total of 305 malignant breast tumor patients who underwent NAC were incorporated into this retrospective analysis. We determined OS and DFS using K-M survival curves and the log-rank test. The relationship between the mSIS and OS and DFS was evaluated by a Cox regression model. A nomogram was constructed based on Cox regression analysis.

Results

Patients in the mSIS low-risk group had better 5- and 8-year OS rates than those in the mSIS high-risk group (59.8% vs. 77.0%; 50.1% vs. 67.7%; X2 = 8.5, P = 0.0035, respectively). Patients in the mSIS (1 + 2 score) + pCR subgroup had the highest 5- and 8-year OS and disease-free survival (DFS) rates (OS: 55.0% vs. 75.7% vs. 84.8, 42.8% vs. 65.7% vs. 79.8%, X2 = 16.6, P = 0.00025; DFS: 38.8% vs. 54.7% vs. 76.3%, 33.3% vs. 42.3 vs. 72.1%, X2 = 12.4, P = 0.002, respectively). Based on the mSIS, clinical T stage and pCR results, the nomogram had better predictive ability than the clinical TNM stage, NLR and Alb.

Conclusions

mSIS is a promising prognostic tool for malignant breast tumor patients who underwent NAC, and the combination of mSIS and pCR is helpful in enhancing the ability to predict a pCR.
Genetic variant in miR-17-92 cluster binding sites is associated with esophageal squamous cell carcinoma risk in Chinese population
Authors: Shen Yi , Shao Yi , Ruan Xiaoli , Zhu Lingyan , Zang Zhaoping , Wei Tong , Nakyeyune Rena , Wei Wenqiang , Liu Fen
Published: December 2022

Background

Single nucleotide polymorphisms (SNPs) located in microRNA (miRNA) binding sites can affect the interactions between miRNAs and target genes, which is related to cancer susceptibility and tumorigenesis. However, the association between SNPs located in miR-17-92 cluster binding sites and ESCC risk remains unclear. Therefore, we aimed to explore the relationship between polymorphisms in miR-17-92 cluster binding sites and ESCC susceptibility.

Methods

Six SNPs in the binding sites of miR-17-92 cluster were selected using bioinformatics databases, and their association with ESCC risk was investigated in a case-control study (including 488 cases and 512 controls) based on the population from high incidence areas of ESCC in China. We evaluated the SNP-SNP and SNP-smoking interactions using generalized multifactor dimensionality reduction (GMDR). Moreover, the expression of the miR-17-92 cluster and its target genes was determined in ESCC and adjacent normal tissues by quantitative real-time polymerase chain reaction (qRT-PCR). The dual-luciferase reporter assay was conducted to verify the effect of SNPs on the binding affinity between miRNAs and target genes.

Results

We found that the SNP rs1804506 C > T had a significant association with the decreased ESCC risk. The SNP rs1804506 T allele was associated with a significantly decreased risk of ESCC in the additive model (OR = 0.817, 95% CI = 0.681–0.981, P = 0.030). The rs1804506 T allele had more striking effects on reducing ESCC risk in older individuals, female or non-smoker subgroups. We also found a significant interaction effect between rs1366600 and smoking by GMDR methods (P = 0.011). Additionally, the expression levels of miR-19a-3p and TGFBR3 were significantly downregulated in ESCC tissues compared with normal tissues, and the carriers of rs1804506 TT genotype had lower expression level of TGFBR3 than those of rs1804506 CC/CT genotype. Following dual-luciferase reporter assay showed that the rs1804506 T allele reduced the binding of miR-19a-3p and TGFBR3 3′-UTR.

Conclusions

Our findings suggest that the rs1804506 polymorphism in miR-17-92 cluster binding sites contributes to the susceptibility of ESCC, which might provide new clues and scientific evidence for the etiology and biomarkers for the prevention and treatment of ESCC.
Prognostic value and outcome for acute lymphocytic leukemia in children with MLL rearrangement: a case-control study
Authors: Qiu Kun-yin , Zhou Dun-hua , Liao Xiong-yu , Huang Ke , Li Yang , Xu Hong-gui , Weng Wen-jun , Xu Lu-hong , Fang Jian-pei
Published: December 2022

Purpose

To evaluate the prognostic factors and outcome for acute lymphoblastic leukemia (ALL) in children with MLL rearrangement (MLL-r).

Methods

A total of 124 pediatric patients who were diagnosed with ALL were classified into two groups based on the MLL-r status by using a retrospective case-control study method from June 2008 to June 2020.

Results

The prevalence of MLL-r positive in the whole cohort was 4.9%. The complete remission (CR) rate on Day 33 in the MLL-r positive group was not statistically different from the negative group (96.8% vs 97.8%, P = 0.736). Multivariate analysis showed that T-cell, white blood cell counts (WBC) ≥ 50 × 109/L, MLL-AF4, and D15 minimal residual disease (MRD) positive were independent risk factors affecting the prognosis of MLL-r positive children. Stem cell transplantation (SCT) was a favorable independent prognostic factor affecting event-free survival (EFS) in MLL-r positive patients (P = 0.027), and there was a trend toward an independent prognostic effect on overall survival (OS) (P = 0.065). The 10-year predicted EFS for patients with MLL-AF4, MLL-PTD, MLL-ENL, other MLL partner genes, and MLL-r negative cases were 46.67 ± 28.61%, 85.71 ± 22.37%, 75 ± 32.41%, 75 ± 32.41%, and 77.33 ± 10.81%, respectively (P = 0.048). The 10-year predicted OS were 46.67 ± 28.61%, 85.71 ± 22.37%, 75 ± 32.41%, 75 ± 32.41%, and 85.2 ± 9.77%, respectively (P = 0.049). The 124 patients with ALL were followed up and eventually 5 (4%) cases relapsed, with a median relapse time of 3.9 years.

Conclusion

Patients with MLL-r positive ALL have moderate remission rates, but are prone to relapse with low overall survival. The outcome of MLL-r positive ALL was closely related to the partner genes, and clinical attention should be paid to screening for MLL partner genes and combining them with other prognostic factors for accurate risk stratification.
Investigate the relationship between cell-phone over-use scale with depression, anxiety and stress among university students
Authors: Hashemi Shima , Ghazanfari Firoozeh , Ebrahimzadeh Farzad , Ghavi Saeed , Badrizadeh Afsaneh
Published: December 2022

Background

Cell phones have increased dramatically as a new communication technology in the modern world. This study aimed to determine the relationship between cell phone over use scale with depression, anxiety and stress among university students in Khorramabad, Iran.

Methods

In this descriptive-analytical and cross-sectional study, 212 students were randomly selected from the Lorestan University of Medical Sciences by a combination of stratified and clustered random sampling. Data were collected by two standard questionnaires including, Cell-phone Over-use Scale (COS) and Depression, Anxiety and Stress (DASS-21) and were analyzed using SPSS V.22.

Results

Based on the results, 72.2% of the students were exclusively male, which a majority of them were in age of 21–23 years (46.2%), and 92.5% were single. Based on the multiple linear regression and after adjustment for the confounding effect, there was a significant relationship between cell phone over use scale on student’s stress (t = 2.614, P = 0.010), and student’s anxiety (t = 2.209, P = 0.028); however there was not a significant relationship between cell phone over use scale on student’s depression (t = 1.790, P = 0.075).

Conclusions

Harmful use of cell phones can aggravate psychological disorders such as anxiety, stress and depression and by controlling this factor can increase the level of mental health and improve the quality of life in students.

Trial registration

Lorestan University of Medical Sciences. ID: IR.LUMS.REC.1397-1-99-1253.
Augmentation in fragility fractures, bone of contention: a systematic review
Authors: Piccirilli Eleonora , Cariati Ida , Primavera Matteo , Triolo Rebecca , Gasbarra Elena , Tarantino Umberto
Published: December 2022

Background

Osteoporosis is a complex multifactorial disease characterized by reduced bone mass and microarchitectural deterioration of bone tissue linked to an increase of fracture risk. Fragility fractures occur in osteoporotic subjects due to low-energy trauma. Osteoporotic patients are a challenge regarding the correct surgical planning, as it can include fixation augmentation techniques to reach a more stable anchorage of the implant, possibly lowering re-intervention rate and in-hospital stay.

Methods

The PubMed database and the Google Scholar search engine were used to identify articles on all augmentation techniques and their association with fragility fractures until January 2022. In total, we selected 40 articles that included studies focusing on humerus, hip, spine, and tibia.

Results

Literature review showed a quantity of materials that can be used for reconstruction of bone defects in fragility fractures in different anatomic locations, with good results over the stability and strength of the implant anchorage, when compared to non-augmented fractures.

Conclusion

Nowadays there are no recommendations and no consensus about the use of augmentation techniques in osteoporotic fractures. Our literature review points at implementing the use of bone augmentation techniques with a specific indication for elderly patients with comminuted fractures and poor bone quality.
Magnetic resonance imaging predictors (cartilage, osteophytes and meniscus) of prevalent and 3-year incident medial and lateral tibiofemoral knee joint tenderness and patellofemoral grind
Authors: Sayre Eric C. , Guermazi Ali , Nicolaou Savvas , Esdaile John M. , Kopec Jacek A. , Singer Joel , Wong Hubert , Thorne Anona , Cibere Jolanda
Published: December 2022

Objective

To identify magnetic resonance imaging (MRI) predictors (cartilage [C], osteophytes [O] and meniscus [M] scores) of prevalent and 3-year incident medial tibiofemoral (MTF) and lateral tibiofemoral (LTF) knee joint tenderness and patellofemoral (PF) grind. 

Methods

Population-based knee pain cohort aged 40–79 was assessed at baseline (N = 255), 3- and 7-year follow-up (N = 108 × 2 = 216). COM scores were measured at 6/8/6 subregions respectively. Age-sex-BMI adjusted logistic models predicted prevalence versus relevant COM predictors (medial, lateral or patellar / trochlear groove scores). Fully adjusted models also included all relevant COM predictors. Binary generalized estimating equations models predicting 3-year incidence were also adjusted for individual follow-up time between cycles.

Results

Significant predictors of prevalent MTF tenderness: medial femoral cartilage (fully adjusted odds ratio [aOR] 1.84; 95% confidence interval [CI] 1.11, 3.05), female (aOR = 3.05; 1.67, 5.58), BMI (aOR = 1.53 per 5 units BMI; 1.10, 2.11). Predictors of prevalent LTF tenderness: female (aOR = 2.18; 1.22, 3.90). There were no predictors of prevalent PF grind in the fully adjusted model. However, medial patellar osteophytes was predictive in the age-sex-BMI adjusted model. There were no predictors of 3-year incident MTF tenderness. Predictors of 3-year incident LTF tenderness: female (aOR = 3.83; 1.25, 11.77). Predictors of 3-year incident PF grind: lateral patellar osteophytes (aOR = 4.82; 1.69, 13.77). In the age-sex-BMI adjusted model, patellar cartilage was also a predictor.

Conclusion

We explored potential MRI predictors of prevalent and 3-year incident MTF/LTF knee joint tenderness and PF grind. These findings could guide preemptive strategies aimed at reducing these symptoms in the present and future (3-year incidence).
Spirometry profiles among pregnant and non-pregnant African women: a cross-sectional study
Authors: Ruhighira Jacktan Josephat , Mashili Fredirick L. , Tungu Alexander Mtemi , Mamuya Simon
Published: December 2022

Background

Spirometry is a commonly used lung function test. It assesses respiratory functions by measuring the air volume and the rate at which a person can exhale from lungs filled to their total capacity. The most helpful spirometry parameters are: forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and peak expiratory flow (PEF). Pregnancy derives an altered physiological state due to hormonal and anatomical changes that affect the respiratory system. Despite that, spirometry is less commonly done during pregnancy, and if done, test results are evaluated against non-pregnancy references.

Objective

This study aimed to explore spirometry profiles in pregnant and non-pregnant women and describe their differences.

Methodology

This cross-sectional study involved age-matched pregnant and non-pregnant participants recruited from Mnazi Moja ANC and Muhimbili University (MUHAS). A digital spirometer was used to assess respiratory function. Data were entered and analyzed using SPSS version 23. The mean spirometry values of pregnant participants were compared to those of non-pregnant participants using an independent sample t-test. A p-value of < 0.05 was considered statistically significant.

Results

The study included 92 pregnant and 98 non-pregnant participants subjected to spirometry. Both FVC and FEV1 values were significantly lower in pregnant than in non-pregnant participants (2.7 ± 0.5 L vs. 2.9 ± 0.5 L; p < 0.01 and 2.2 ± 0.4 L vs. 2.5 ± 0.4 L; p < 0.01 respectively). In addition, pregnant participants had significantly lower mean PEF values than their non-pregnant counterparts (303 ± 84 L/min versus 353 ± 64 L/min; p < 0.01).

Conclusion

Spirometry test values are lower in pregnancy than in non-pregnant participants.

Recommendations

Interpreting the spirometry test values of pregnant women using references obtained from non-pregnant women may be inappropriate. Future studies should evaluate the appropriateness of predicting spirometry values of pregnant women using reference equations derived from non-pregnant women.
Effects of Kami Guibi-tang in patients with mild cognitive impairment: study protocol for a phase III, randomized, double-blind, and placebo-controlled trial
Authors: Shin Hee-Yeon , Yim Tae-Bin , Heo Hye-Min , Jahng Geon-Ho , Kwon Seungwon , Cho Seung-Yeon , Park Seong-Uk , Jung Woo-Sang , Moon Sang-Kwan , Ko Chang-Nam , Park Jung-Mi
Published: December 2022

Background

Amnestic mild cognitive impairment (aMCI) is often considered a precursor to Alzheimer’s disease (AD) and represents a key therapeutic target for early intervention of AD. However, no treatments have been approved for MCI at present. Our previous pilot study has shown that Kami Guibi-tang (KGT), a traditional herbal prescription widely used in Korean medicine for treating amnesia, might be beneficial for improving general cognitive function of aMCI patients. We will conduct a larger-scale clinical trial to validate the findings of our pilot study and further examine the efficacy and safety of KGT in aMCI.

Methods

This trial is designed as a randomized, double-blind, placebo-controlled clinical trial. A total of 84 aMCI patients will be recruited and randomized into the treatment and control groups. Participants will be administered either KGT or placebo granules for 24 weeks, with a follow-up period of 12 weeks after the last treatment. Primary outcomes will include changes in cognitive performance assessed using a neuropsychological test battery, called the Seoul Neuropsychological Screening Battery, between the baseline, post-intervention visit, and follow-up visit (24th and 36th week, respectively). Secondary outcomes will involve the rate of progression to AD, changes in neuroimaging signals assessed using structural magnetic resonance imaging (MRI), resting-state functional MRI (rs-fMRI), and task-based fMRI, and changes in blood biomarkers measured by the ratio of plasma amyloid-β 42/40 levels (Aβ42/Aβ40) between the baseline and post-intervention visit (24th week). For safety assessments, blood chemistry tests and electrocardiograms (ECG) will also be performed.

Discussion

This study aims to provide confirmatory evidence of the effect of the Korean herbal medicine, KGT, on improving cognitive function in patients with aMCI. We will identify the possible mechanisms underlying the effects of KGT using neuroimaging signals and blood biomarkers.

Trial registration

Korean Clinical Trial Registry (https://cris.nih.go.kr/cris/search/detailSearch.do/16918; Registration number: KCT0007039; Date of registration: February 24, 2022).
Enhanced supportive care for advanced cancer patients: study protocol for a randomized controlled trial
Authors: Choi Yun Young , Rha Sun Young , Cho Sungkun , Lee Hye Sun , Hong Bomi , Lee Jiyeon
Published: December 2022

Background

Early palliative care along with standard cancer treatments is recommended in current clinical guidelines to improve the quality of life and survival of cancer patients. This study protocol aims to evaluate the effect of “Enhanced Supportive Care”, an early primary palliative care provided by nurses.

Methods

A randomized controlled trial (RCT) will be conducted including advanced cancer patients scheduled for first-line palliative chemotherapy (N=360) and their caregivers in South Korea. Participants will be randomly assigned to the intervention or control group in a 1:1 ratio. Participants in the intervention group will receive the “Enhanced Supportive Care”, which provides five sessions of symptom management and coping enhancement counseling by nurses. The control group will receive symptom monitoring five times. The primary endpoints are symptoms, coping, and quality of life (QoL) at 3 months. Secondary endpoints are symptoms, coping, and QoL at 6 months, depression and self-efficacy for coping with cancer at 3 and 6 months, symptom and depression change from baseline to 3 months, survival at 6 and 12 months among patients, and depression among caregivers at 3 and 6 months.

Discussion

This RCT will evaluate the effects of “Enhanced Supportive Care” on symptoms, depression, coping, self-efficacy for coping with cancer, QoL and survival of patients, as well as depression of caregivers. It will provide evidence of a strategy to implement early primary palliative care provided by nurses, which may consequently improve cancer care for newly diagnosed patients with advanced stage cancer.

Trial registration

ClinicalTrials.gov, NCT04407013. Registered on May 29, 2020,https://www.clinicaltrials.gov/ct2/show/study/NCT04407013. The protocol version is ESC 1.0.
A collaborative care package for depression comorbid with chronic physical conditions in South Africa
Authors: Petersen Inge , Selohilwe One , Georgeu-Pepper Daniella , Ras Christy-Joy , Zani Babalwa , Petrus Ruwayda , Anderson Lauren , Mntambo Ntokozo , Kathree Tasneem , Bhana Arvin , Thornicroft Graham , Fairall Lara
Published: December 2022

Introduction

A task-sharing collaborative care model for integrated depression care for South Africa’s burgeoning primary health care population with chronic conditions was developed and tested through two pragmatic cluster randomized controlled trials. One trial focused on patients with hypertension and was located in one district where a collaborative care model was co-designed with district stakeholders. The other trial, focused on patients on antiretroviral treatment, was located in the same district site, with the addition of a second neighbouring district, without adaptation of the original model. This paper describes the package used to implement this model, and implementation outcomes across the two sites, and summarises lessons and challenges.

Methods

The Template for Intervention Description and Replication (TIDieR) framework, adapted for complex health systems interventions, was used to describe components of the package. Additional elements of ‘modifications made’ and ‘actual implementation’ introduced in the ‘Getting messier with TIDieR’ framework, were used to describe implementation outcomes in terms of reach, adoption and implementation across the two trial districts.

Results

In the absence of a co-design process to adapt the model to the context of the second site, there was less system level support for the model. Consequently, more project employed human resources were deployed to support training of primary care nurses in identification and referral of patients with depression; and supervise co-located lay counsellors. Referrals to co-located lay counselling services were more than double in the second site. However, uptake of counselling sessions was greater in the first site. This was attributed to greater in-vivo supervision and support from existing mental health specialists in the system. There was greater reliance on online supervision and support in the second site where geographical distances between clinics were larger.

Conclusion

The need for in-country co-designed collaborative care models, and ‘implementation heavy’ implementation research to understand adaptations required to accommodate varying in-country health system contexts is highlighted.
The trend and direct costs of screening and chemotherapy treatment of breast cancer in the new coronavirus pandemic: total and interrupted time series study
Authors: Hyeda Adriano , da Costa Élide Sbardellotto Mariano , Kowalski Sérgio Candido
Published: December 2022

Background

The COVID-19 pandemic has overloaded the healthcare systems of many countries and reduced the population’s access to treatment and prevention of other diseases. This study aims to assess whether the COVID-19 pandemic has negatively interfered with the trend and the direct costs of screening and chemotherapy treatment of breast cancer in a public and universal healthcare system.

Method

This was an ecological time series study using an open database of a public and universal health system from 2017 to 2021.

Results

In 2020, there was a 41% reduction in the coverage rate of breast cancer screening in women aged 50 to 69 years (about 1 million mammograms missed). The total direct cost of breast cancer screening reduced proportionally to the number of tests (BRL 67 million). On the other hand, the cost of chemotherapy treatment was higher in 2020, both in advanced (BRL 465 million) and localized (BRL 113 million) diseases. In the time series, mammograms’ trend and direct costs changed from stationary to decreasing after the COVID-19 pandemic. The trend of direct costs with chemotherapy treatment for the advanced disease has been increasing and has not changed after the COVID-19 pandemic. On the other hand, in the case of localized disease, there was a trend toward reducing direct costs after the pandemic.

Conclusion

After COVID-19, there was a downward trend in breast cancer screening and its direct costs, an upward trend in chemotherapy costs for advanced disease, and a downward trend in chemotherapy costs for localized disease.
The effect of haptoglobin genotype on the association of asymmetric dimethylarginine and DDAH 1 polymorphism with diabetic macroangiopathy
Authors: Wang Shiyun , Deng Zixuan , Zhang Hong , Zhang Rong , Yan Dandan , Zheng Xiaojiao , Jia Weiping , Hu Cheng
Published: December 2022

Background

Dimethylarginine dimethylaminohydrolase (DDAH) 1 maintains the bioavailability of nitric oxide by degrading asymmetric dimethylarginine (ADMA). Here, we aimed to investigate the effect of haptoglobin (Hp) genotype on the association of ADMA and DDAH 1 polymorphism with diabetic macroangiopathy.

Methods

In stage 1, 90 Chinese participants with type 2 diabetes were enrolled to measure a panel of targeted metabolites, including ADMA, using tandem mass spectrometry (BIOCRATES AbsoluteIDQ™ p180 kit). In stage 2, an independent cohort of 2965 Chinese patients with type 2 diabetes was recruited to analyze the effect of Hp genotype on the association between DDAH 1 rs233109 and diabetic macroangiopathy. Hp genotypes were detected using a validated assay based on the TaqMan method. DDAH 1 rs233109 was genotyped by matrix-assisted laser desorption/ionization time-of-flight mass spectroscopy using the MassARRAY platform.

Results

In stage 1, serum ADMA levels correlated with common Hp genotypes (β ± SE = − 0.049 ± 0.023, P = 0.035), but not with diabetic macroangiopathy (P = 0.316). In stage 2, the distribution of DDAH 1 rs233109 genotype frequencies was 15% (CC), 47% (TC), and 38% (TT), which was in Hardy-Weinberg equilibrium (P = 0.948). A significant Hp genotype by rs 233109 genotype interaction effect on diabetic macroangiopathy was found (P = 0.017). After adjusting for confounders, patients homozygous for rs233109 CC were more likely to develop diabetic macroangiopathy than those carrying TT homozygotes in the Hp 2-2 subgroup [odds ratio = 1.750 (95% confidence interval, 1.101–2.783), P = 0.018].

Conclusion

Hp genotype affects the association between DDAH 1 rs233109 and diabetic macroangiopathy in Chinese patients with type 2 diabetes.