bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cone-beam computed tomographic analysis of maxillary sinus septa among Yemeni population: a cross-sectional study
Authors: Altayar Bassam A. , Al-Tayar Barakat , Lin Weimin , Al-wesabi Saddam N. , Al-shujaa Eissa A. , Sakran Karim , Yuan Quan , Lyu Mingyue 
Published: July 2023

Abstract
Background
Maxillary sinus septa increase perforation risk of Schneiderian membrane during the sinus floor elevation (SFE). Cone Beam Computed Tomography (CBCT) allows for a more precise assessment of the septal position; thus, preoperative CBCT analysis is substantial to avoid possible complications. This study aims to investigate the 3D characteristics of the maxillary sinus septa based on CBCT images. To our knowledge, no study reported the CBCT-based investigation for the sinus septa among Yemeni population.

Materials and methods
This is a retrospective cross-sectional analysis of 880 sinus CBCT images 440 patients. The septa prevalence, locations, orientations, morphology, and associated factors were analyzed. The effect of age, gender, and dental status on the sinus septa and the relationship between sinus membrane pathology and sinus septa were also analyzed. Anatomage (Invivo version 6) was used for CBCT images analysis. Descriptive and analytical statistics were performed, and a P-value < 0.05 was significantly considered.

Results
The maxillary sinus septa were found among 63.9% of patients and 47% of sinuses. The average septa height was 5.2 mm. 15.7% of patients had septa in the right maxilla, 18% in the left, and 30.2% in both. Gender, age, and dental condition had no influence on the presence of septa, and septa presence did not influence sinus membrane pathology. Many septa originated from the floor (54.5%), located in the middle (43%), with coronal orientation (66%) and complete configuration (58.2%).

Conclusion
Based on our findings, the septa prevalence, locations, orientations, and morphology were significant and equivalent to the highest recorded in the literature yet. Thus, when sinus floor elevation is planned, CBCT imaging of the maxillary sinus is recommended for safe dental implantation.
Evaluation of bacterial leakage and marginal adaptation of the bioceramics pulp dressing materials: an invitro study
Authors: Snigdha Niher Tabassum Siddiqua , Kamarudin Aimi , Baharin Fadzlinda , Ghani Nik Rozainah Nik Abdul , bin Yhaya Mohd Firdaus , Ahmad Wan Muhamad Amir W , Karobari Mohmed Isaqali 
Published: July 2023

Abstract
Objective
To compare the sealing ability and marginal adaptation of three calcium silicate-based cement (Biodentine, Pro root MTA, MTA Angelus) using a bacterial leakage model and scanning electron microscope (SEM).

Methods
Recently extracted lower first premolars were randomly categorized into three experimental groups (n = 15 samples), positive control (n = 5 samples), and negative control group (n = 5 sample). Samples from the experimental groups and positive control group were subject to cavity Class I occlusal preparation followed by modified coronal pulpotomy. Different types of bioceramic dressing material were placed in 3 mm thickness accordingly, group 1 (Biodentine), group 2 (MTA Angelus), and group 3 (ProRoot MTA). No dressing material was placed in the positive control group (group 4). All samples were placed in the incubator for 24 h at 37℃, 100% humidity, for the materials to be completely set. The final restoration was placed using the Z350 resin composite. A double layer of nail varnish was applied over all the sample surfaces except the occlusal site. Whereas the samples’ surfaces in the negative control, were completely covered. A 3 mm length was measured from the root apex of the samples from each group, before proceeding with the resection. The bacterial leakage test was performed using Enterococcus faecalis TCC 23,125, and a sample from each experimental group was randomly chosen for SEM. Data analysis was conducted under the One-way ANOVA test, completed by Tukey’s post hoc test.

Results
There is a significant difference in sealing ability and marginal adaptation between the groups. (p < 0.05). The study showed that Pro Root MTA had the superior sealing ability and marginal adaptation compared to Biodentine and MTA Angelus.

Conclusion
The ProRoot MTA as a coronal pulpotomy pulp dressing material, was found to have a better marginal adaptation and sealing ability compared to three other bioceramics materials. The material would be the better choice during clinical settings and procedures.
CD8 + T-cell marker genes reveal different immune subtypes of oral lichen planus by integrating single-cell RNA-seq and bulk RNA-sequencing
Authors: Zhang Jinhao , Peng Gaoge , Chi Hao , Yang Jinyan , Xie Xixi , Song Guobin , Tran Lisa Jia , Xia Zhijia , Tian Gang 
Published: July 2023

Abstract
Background
Oral lichen planus (OLP) is a local autoimmune disease induced by T-cell dysfunction that frequently affects middle-aged or elderly people, with a higher prevalence in women. CD8 + T cells, also known as killer T cells, play an important role in the progression and persistence of OLP. In order to identify different OLP subtypes associated with CD8 + T cell pathogenesis, consensus clustering was used.

Methods
In this study, we preprocessed and downscaled the OLP single-cell dataset GSE211630 cohort downloaded from Gene Expression Omnibus (GEO) to finally obtain the marker genes of CD8 + T cells. Based on the expression of marker genes, we classified OLP patients into CMGs subtypes using unsupervised clustering analysis. The gene expression profiles were analyzed by WGCNA using the “WGCNA” R package based on the clinical disease traits and typing results, and 108 CD8 + T-cell related OLP pathogenicity-related genes were obtained from the intersection. Patients were once again classified into gene subtypes based on intersection gene expression using unsupervised clustering analysis.

Results
After obtaining the intersecting genes of CD8 + T cells related to pathogenesis, OLP patients can be precisely classified into two different subtypes based on unsupervised clustering analysis, and subtype B has better immune infiltration results, providing clinicians with a reference for personalized treatment.

Conclusions
Classification of OLP into different subtypes improve our current understanding of the underlying pathogenesis of OLP and provides new insights for future studies.
A comparative study of three-dimensional cone-beam CT sialography and MR sialography for the detection of non-tumorous salivary pathologies
Authors: Bertin Hélios , Bonnet Raphael , Le Thuaut Aurélie , Huon Jean-François , Corre Pierre , Frampas Eric , Langlois Emmanuelle Mourrain , Chesneau Anne-Sophie Delemazure 
Published: July 2023

Abstract
Background
Imaging of the salivary ductal system is relevant prior to an endoscopic or a surgical procedure. Various imaging modalities can be used for this purpose. The aim of this study was to compare the diagnostic capability of three-dimensional (3D)-cone-beam computed tomography (CBCT) sialography versus magnetic resonance (MR) sialography in non-tumorous salivary pathologies.

Methods
This prospective, monocenter, pilot study compared both imaging modalities in 46 patients (mean age 50.1 ± 14.9 years) referred for salivary symptoms. The analyses were performed by two independent radiologists and referred to identification of a salivary disease including sialolithiasis, stenosis, or dilatation (primary endpoint). The location and size of an abnormality, the last branch of division of the salivary duct that can be visualized, potential complications, and exposure parameters were also collected (secondary endpoints).

Results
Salivary symptoms involved both the submandibular (60.9%) and parotid (39.1%) glands. Sialolithiasis, dilatations, and stenosis were observed in 24, 25, and 9 patients, respectively, with no statistical differences observed between the two imaging modalities in terms of lesion identification (p1 = 0.66, p2 = 0.63, and p3 = 0.24, respectively). The inter-observer agreement was perfect (> 0.90) for lesion identification. MR sialography outperformed 3D-CBCT sialography for visualization of salivary stones and dilatations, as evidenced by higher positive percent agreement (sensitivity) of 0.90 [95% CI 0.70–0.98] vs. 0.82 [95% CI 0.61–0.93], and 0.84 [95% CI 0.62–0.94] vs. 0.70 [95% CI 0.49–0.84], respectively. For the identification of stenosis, the same low positive percent agreement was obtained with both procedures (0.20 [95% CI 0.01–0.62]). There was a good concordance for the location of a stone (Kappa coefficient of 0.62). Catheterization failure was observed in two patients by 3D-CBCT sialography.

Conclusions
Both imaging procedures warrant being part of the diagnostic arsenal of non-tumorous salivary pathologies. However, MR sialography may be more effective than 3D-CBCT sialography for the identification of sialolithiasis and ductal dilatations.

Trial registration
NCT02883140.
Retrospective study of pathogens involved in vaginitis among Chinese women
Authors: Pan Zhengmei , Wu Yanzhi , Li Yan , Hu Xi , Zhao Yiyue , Liu Yang 
Published: July 2023

AbstractBackgroundTo explore the pathogen distribution in Chinese females with vaginitis.MethodsThis retrospective study included Chinese females with vaginitis admitted at the outpatient department of the Gynecology Clinic of the Second Affiliated Hospital of Kunming Medical University between January 2013 and June 2013. Data on the vaginal pathogens and inflammation were analyzed.ResultsThe vaginal secretions from 15,601 gynecologic outpatients were abnormal, including 8547 (54.78%) with vaginal infection and 7054 (45.22%) without. In patients with vaginal infections, a single infection was observed in 69.72% (5959/8547) of them, and mixed infection was observed in 30.28% (2588/8547). The differences in age and inflammation grade between the infection and no-infection groups were statistically significant (allP < 0.001). In addition, multiple types of vaginitis could be diagnosed in patients with mixed infections.ConclusionsAbout half of the Chinese women with abnormal vaginal secretions are positive for pathogens in the study period. Patients’ age and inflammation grade are associated with co-infection. From the public health perspective, this study suggests that the importance of vaginal hygiene should be enforced in Chinese women.
The effect of bovine milk lactoferrin-loaded exosomes (exoLF) on human MDA-MB-231 breast cancer cell line
Authors: Ramezani Reihaneh , Mohammadian Mozhdeh , Hosseini Elaheh Sadat , Zare Mehrak 
Published: July 2023

Abstract
Background
Cancer is still the most challenging disease and is responsible for many deaths worldwide. Considerable research now focuses on targeted therapy in cancer using natural components to improve anti-tumor efficacy and reduce unfavorable effects. Lactoferrin is an iron-binding glycoprotein found in body fluids. Increasing evidence suggests that lactoferrin is a safe agent capable of inducing anti-cancer effects. Therefore, we conducted a study to evaluate the effects of the exosomal form of bovine milk lactoferrin on a human MDA-MB-231 breast cancer cell line.

Methods
The exosomes were isolated from cancer cells by ultracentrifugation and incorporated with bovine milk lactoferrin through the incubation method. The average size of the purified exosome was determined using SEM imaging and DLS analysis. The maximum percentage of lactoferrin-loaded exosomes (exoLF) was achieved by incubating 1 mg/ml of lactoferrin with 30 µg/ml of MDA-MB-231 cells-derived exosomes. Following treatment of MDA-MB-231 cancer cells and normal cells with 1 mg/ml exoLF MTT assay applied to evaluate the cytotoxicity, PI/ annexin V analysis was carried out to illustrate the apoptotic phenotype, and the real-time PCR was performed to assess the pro-apoptotic protein, Bid, and anti-apoptotic protein, Bcl-2.

Results
The average size of the purified exosome was about 100 nm. The maximum lactoferrin loading efficiency of exoLF was 29.72%. MTT assay showed that although the 1 mg/ml exoLF treatment of MDA-MB-231 cancer cells induced 50% cell growth inhibition, normal mesenchymal stem cells remained viable. PI/ annexin V analysis revealed that 34% of cancer cells had late apoptotic phenotype after treatment. The real-time PCR showed an elevated expression of pro-apoptotic protein Bid and diminished anti-apoptotic protein Bcl-2 following exoLF treatment.

Conclusion
These results suggested that exoLF could induce selective cytotoxicity against cancer cells compared to normal cells. Incorporating lactoferrin into the exosome seems an effective agent for cancer therapy. However, further studies are required to evaluate anti-tumor efficacy and the underlying mechanism of exoLF in various cancer cell lines and animal models.
'Learning by doing', a model for improving the promotion of healthy lifestyles by student nurses
Authors: Pérez-Rivas Francisco Javier , Rico-Blázquez Milagros , López-López Candelas , Domínguez-Fernández Silvia , Cobos-Serrano José Luis , Ajejas Bazán María Julia 
Published: July 2023

Abstract
Background
'Learning by doing' is a learning model based on performing actions and gaining experience. The 'nursing process' is a systematic, rational method for providing nursing care. During their university education, nursing students need to acquire the ability to promote healthy lifestyles.

Objective
To determine the effectiveness of a learning strategy based on learning by doing and grounded in the use of the nursing process, on the lifestyle of nursing students.

Methods
This quasi-experimental intervention (before-after), performed over 2011–2022, involved 2300 nursing students at a university nursing school in Spain. The risk factors for chronic diseases—being a smoker, being overweight, or having high blood pressure—to which each student was exposed were recorded. Those positive for at least one risk factor selected companion students as 'support nursing students' who became responsible for designing an individualised care plan to reduce the risk(s) faced. To ensure the correct use of the nursing process, teachers approved and monitored the implementation of the care plans. Whether risk-reduction objectives were met was determined three months later.

Results
The students with risk factors largely improved their lifestyles (targets for reducing smoking/body weight were met) with the help of their supporting peers.

Conclusions
The learning by doing method demonstrated its effectiveness, improving the lifestyle of at-risk students via the use of the nursing process.
Developing a complex vocational rehabilitation intervention for patients with inflammatory arthritis: the WORK-ON study
Authors: Madsen Christina Merete Tvede , Primdahl Jette , Bremander Ann , Eggen Linda , Christensen Jeanette Reffstrup 
Published: July 2023

Abstract
Background
People with inflammatory arthritis often experience challenges at work and balancing paid work and energy in everyday life. Low work ability is common, and people with inflammatory arthritis face high risks of losing their jobs and permanent exclusion from the labour market. Context-specific tailored rehabilitation targeting persons with inflammatory arthritis is limited. The aim of this study is to describe the development of WORK-ON – a vocational rehabilitation for people with inflammatory arthritis.

Methods
Following the Medical Research Council’s framework for complex interventions, WORK-ON was developed based on existing evidence, interviews with patients and rehabilitation clinicians, a workshop, and an iterative process.

Results
The six-month vocational rehabilitation, WORK-ON, consists of 1) an initial assessment and goal setting by an occupational therapist experienced in rheumatology rehabilitation, 2) coordination by the same occupational therapist and individual support, including navigating across the primary and secondary health sectors, as well as social care, 3) group sessions for peer support, and 4) optionally individually tailored consultations with physiotherapists, nurses, or social workers.

Conclusion
WORK-ON is ready to be tested in a feasibility study.

Trial registration
The Regional Committees on Health Ethics for Southern Denmark stated that no formal ethical approval was necessary in this study (20,192,000–105).
Evaluation of the proper use of medication available over the counter by subsistence and emerging farmers in Mbombela Municipality, South Africa
Authors: Gulwako M. S. , Mokoele J. M. , Ngoshe Y. B. , Naidoo V. 
Published: July 2023

AbstractSouth Africa has two types of animal farming systems, being the commercial industry and subsistence farming in more rural areas, with commercial farmers having more access to veterinary services. To cater for the absence of sufficient veterinary service, the country allows farmers to access certain over the counter medications (stock remedies), as a way to assist them to farm sustainably and profitably. However, with any drug use, their true benefits are only realized following correct use. The aim of this study was to describe and assess the adequacy of the current use of veterinary drugs by rural-based farmers. A scheduled structured questionnaire with close-ended questions and direct observation was employed. The most important finding was the absence of proper training in the area, with 82.9% not receiving any training related to livestock production or use/handling of stock remedies, highlighting the urgent need for proper training. Of interest, a large proportion of the farmers (57.5%) left the care of their animals to herders. Concerns were also noted in the application of withholding periods, transport of medication, disposal of medication, calculation of drug doses, correct route of administration and carcass disposal with no difference in response between farmers receiving training and those who didn’t. These finding not only indicates the importance of farmer training, but shows that for such training to be effective, information should not only cover farming activities but must include primary animal health care and an understanding of information contained in package leaflets. It would also be important to ensure that herdsmen are also included in such training initiatives as they are the primary careers of the animals.
Heme oxygenase 1 alleviates nonalcoholic steatohepatitis by suppressing hepatic ferroptosis
Authors: Yuan Xiwei , Li Lu , Zhang Ying , Ai Rong , Li Dongdong , Dou Yao , Hou Mengmeng , Zhao Dandan , Zhao Suxian , Nan Yuemin 
Published: July 2023

Abstract
Background
Heme oxygenase 1 (HO-1) has an influential but insufficiently investigated effect on ferroptosis, which is a novel form of programmed cell death and may play an effect on nonalcoholic steatohepatitis (NASH). However, the understanding of the mechanism is limited. Herein, our study aimed to explore the mechanism and role of HO-1 in NASH ferroptosis.

Methods
Hepatocyte conditional HO-1 knockout (HO-1HEPKO) C57BL/6J mice were established and fed a high-fat diet (HFD). Additionally, wild-type mice were fed either a normal diet or a HFD. Hepatic steatosis, inflammation, fibrosis, lipid peroxidation, and iron overload were assessed. AML12 and HepG2 cells were used to investigate the underlying mechanisms in vitro. Finally, liver sections from NASH patients were used to clinically validate the histopathology of ferroptosis.

Results
In mice, HFD caused lipid accumulation, inflammation, fibrosis, and lipid peroxidation, which were aggravated by HO-1HEPKO. In line with the in vivo results, HO-1 knockdown upregulated reactive oxygen species accumulation, lipid peroxidation, and iron overload in AML12 and HepG2 cells. Additionally, HO-1 knockdown reduced the GSH and SOD levels, which was in contrast to HO-1 overexpression in vitro. Furthermore, the present study revealed that the NF-κB signaling pathway was associated with ferroptosis in NASH models. Likewise, these findings were consistent with the liver histopathology results of NASH patients.

Conclusion
The current study showed that HO-1 could alleviate NASH progression by mediating ferroptosis.
Predictive value of monocyte to high-density lipoprotein cholesterol ratio and tumor markers in colorectal cancer and their relationship with clinicopathological characteristics
Authors: Zhang Xuan , Qin Hongyan , Tan Xiaodan , Mo Yuncong , Li Zhenyong , Huang Guofeng , Wei Zhixiao 
Published: July 2023

Abstract
Objective
To evaluate the predictive value of monocyte (M) to high-density lipoprotein cholesterol (HDL-C) ratio (MHR) and tumor markers in colorectal cancer (CRC) and their correlation with clinicopathological characteristics.

Methods
Hematology test data and medical records of 202 CRC patients and 201 healthy subjects were collected retrospectively. The diagnostic efficacy of MHR was evaluated using receiver operating characteristic (ROC) curves and risk factors for CRC were analyzed by multivariate logistic regression.

Results
CRC patients had significantly higher M, MHR, carcinoembryonic antigen (CEA), and carbohydrate antigen 199 (CA199) levels, but significantly lower HDL-C levels than healthy controls (all P < 0.05). Additionally, MHR was positively correlated with tumor differentiation in CRC patients (P = 0.049); CEA and CA199 levels in CRC patients increased with increased stage, lymph node metastasis and tumor size ≥ 5 cm (all P < 0.05). Furthermore, high levels of MHR, CA199 and CEA were independent risk factors for CRC. The area under ROC curve of MHR combined with CEA and CA199 was 0.882/0.869 for the diagnosis of CRC, respectively.

Conclusion
This is the first study to explore the predictive value of MHR in CRC, and its continuous increase is an independent risk factor for CRC. MHR is a promising predictor for CRC progression along with CA199 and CEA.
Salivary microbiome and hypertension in the Qatari population
Authors: Murugesan Selvasankar , Al Khodor Souhaila 
Published: July 2023

AbstractBackgroundThe prevalence of hypertension in Qatar is 33 percent of the adult population. It is postulated that the salivary microbiome can regulate blood pressure (BP). However, limited investigations exist to prove this hypothesis. Therefore, we examined the difference in the salivary microbiome composition between hypertensive and normotensive Qatari subjects.MethodsA total of 1190 Qatar Genome Project (QGP) participants (Mean age = 43 years) were included in this study. BP for all participants was classified into Normal (n = 357), Stage1 (n = 336), and Stage2: (n = 161) according to the American Heart Association guidelines. 16S-rRNA libraries were sequenced and analyzed using QIIME-pipeline, and PICRUST was used to predict functional metabolic routes. Machine Learning (ML) strategies were applied to identify salivary microbiome-based predictors of hypertension.ResultsDifferential abundant analysis (DAA) revealed thatBacteroidesand Atopobiumwere the significant members of the hypertensive groups. Alpha and beta diversity indices indicated dysbiosis between the normotensive and hypertensive groups. ML-based prediction models revealed that these markers could predict hypertension with an AUC (Area under the curve) of 0.89. Functional predictive analysis disclosed that Cysteine and Methionine metabolism and the sulphur metabolic pathways involving the renin-angiotensin system were significantly higher in the normotensive group. Therefore, members ofBacteroidesandAtopobiumcan serve as predictors of hypertension. Likewise,Prevotella,Neisseria,andHaemophiluscan be the protectors that regulate BP via nitric acid synthesis and regulation of the renin-angiotensin system.ConclusionIt is one of the first studies to assess salivary microbiome and hypertension as disease models in a large cohort of the Qatari population. Further research is needed to confirm these findings and validate the mechanisms involved.