bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exosomes derived from human urine–derived stem cells ameliorate IL-1β-induced intervertebral disk degeneration
Authors: Qian Guang , Yu Yueming , Dong Youhai , Hong Yang , Wang Minghai 
Published: July 2024

Abstract
Background
Human intervertebral disk degeneration (IVDD) is a sophisticated degenerative pathological process. A key cause of IVDD progression is nucleus pulposus cell (NPC) degeneration, which contributes to excessive endoplasmic reticulum stress in the intervertebral disk. However, the mechanisms underlying IVDD and NPC degeneration remain unclear.

Methods
We used interleukin (IL)-1β stimulation to establish an NPC-degenerated IVDD model and investigated whether human urine–derived stem cell (USC) exosomes could prevent IL-1β-induced NPC degeneration using western blotting, quantitative real-time polymerase chain reaction, flow cytometry, and transcriptome sequencing techniques.

Results
We successfully extracted and identified USCs and exosomes from human urine. IL-1β substantially downregulated NPC viability and induced NPC degeneration while modulating the expression of SOX-9, collagen II, and aggrecan. Exosomes from USCs could rescue IL-1β-induced NPC degeneration and restore the expression levels of SOX-9, collagen II, and aggrecan.

Conclusions
USC-derived exosomes can prevent NPCs from degeneration following IL-1β stimulation. This finding can aid the development of a potential treatment strategy for IVDD.
The relationship between the duration and the retraction and atrophy grades in traumatic isolated full-thickness supraspinatus tears in young patients
Authors: Ilyas Gokhan , Ipci Fikri Burak , Gokalp Oguzhan , Egeli Ercument 
Published: July 2024

Abstract
Background
The study aimed to determine the grade of retraction and atrophy according to the time elapsed in traumatic isolated full-thickness supraspinatus (SS) tears in young patients.

Methods
One thousand twenty-six patients, who underwent arthroscopic shoulder surgery, were retrospectively reviewed. Pre-operative magnetic resonance imaging (MRI) of 69 patients aged 18 to 40 years with isolated traumatic full-thickness SS lesions remaining after exclusion criteria were evaluated for tendon retraction and atrophy grades. SS retraction was determined from a T2-weighted oblique coronal MRI slice, and the atrophy grade was determined from the T1-weighted oblique sagittal MRI slice. The patients were divided into four groups 0–1 month, 1–3 months, 3–6 months, and 6–12 months according to the time between trauma and MRI. The relationship of tendon retraction and muscle atrophy with elapsed time was evaluated, in addition, comparisons between groups were made.

Results
Thirty-one (45%) of the patients were female and their mean age was 30 ± 7.3 (18–40) years. The mean age of men was 30.5 ± 6.9 (18–39) years (p = 0.880). The time between rupture and MRI was moderately correlated with retraction and strongly correlated with atrophy grades (r = 0.599, 0.751, respectively). It was observed that there was a statistically significant difference between the 1st (0–1 month) and 2nd (1–3 months) groups (p = 0.003, 0.001, respectively), and between the 2nd and 3rd (3–6 months) groups (p = 0.032, 0.002, respectively), but there was no significant difference between the 3rd and 4th (6–12 months) groups (p = 0.118, 0.057, respectively). In addition, there was a moderate correlation between tendon retraction and atrophy grades (r = 0.668). Power (1- b) in post hoc analysis was calculated as 0.826.

Conclusions
The current study, supported by arthroscopy, showed that there is a moderate and strong positive correlation between the time elapsed after trauma and the level of retraction and degree of atrophy in traumatic full-thickness SS tears, and demonstrated the importance of early surgical intervention in young patients.
Impact of concentrated growth factor (CGF) injection on acceleration of orthodontic tooth movement in rabbits
Authors: Alawy Safa B. , El Meligy Mona Al Ahmady , Salem Eman M. , Alghonemy Wafaa Yahia 
Published: July 2024

Abstract
Background
The present study aimed to assess how a concentrated growth factor (CGF) injection affects the rate of orthodontic tooth movement in rabbits.

Methods
This experimental investigation employed a split-mouth configuration. Before orthodontic mesialization of the maxillary first molars, CGF was prepared and administered using submucosal injections on the buccal and palatal sides of the maxillary first molars in one randomly assigned quadrant. The opposite quadrant was used as a control. The study examined four time points:1, 2, 3, and 4 weeks. The measurement of tooth movement was conducted at each follow-up point using a digital caliper. The rabbits were euthanized, and their maxillary segments, specifically the maxillary first molars, were studied histologically to identify any alterations occurring on both the tension and compression sides.

Results
Significant tooth movement was observed in the experimental sides versus control sides in the second, third, and fourth week of follow-up periods (p ≤ 0.05). Histologically, on the compression side, the CGF group showed bone resorption and periodontal ligament active reactions from the first week and continued throughout the next three weeks. Also, on the tension side, the CGF group depicted cementoblastic and osteoblastic activities from the first week followed by fibroblastic activities from the second week and all activities continued till the fourth week.

Conclusions
CGF has the potential to effectively enhance orthodontic tooth movement without adverse clinical or histological effects.
The relationship between dietary habits and menstruation problems in women: a cross-sectional study
Authors: Güzeldere Hatice Kübra Barcın , Efendioğlu Emine Hilal , Mutlu Sümeyye , Esen Havva Nur , Karaca Gamze Nur , Çağırdar Beyzanur 
Published: July 2024

Abstract
Background
Nutrition is important to the management and relief of the symptoms in menstrual disorders. This study aims to investigate the relationship between menstrual disorders and specific foods and nutrient intake in women.

Methods
Five-hundred-nine menstruating women participated in the study. The questionnaire form was created by the researchers via Google Forms and distributed in online applications (WhatsApp, Instagram etc.). The questionnaire consists of 5 sections, including demographic data, declared anthropometric measurements (height (m or cm), weight (g or kg)), questions about eating habits, menstruation status, and 24-hour food consumption. Statistical analysis was made with SPSS 23; nutrient analysis of food consumption was made using BeBiS 9.0.

Results
It was found that the body mass index (BMI) of healthy participants was higher than women with menstrual disorders. Women with menstrual disorders have lower intake of protein, vitamin K, vitamin B3, vitamin B5 and sodium compared with healthy women. All participants have a higher intake of vitamin B3, sodium, phosphorus, and manganese, and have a lower intake of other nutrients compared with the national adequate intake.

Conclusion
Our findings showed that women with menstrual disorders consume more high-sugar food/beverages and have inadequate nutrients intake.
Quality of life and its associated factors among women with pelvic organ prolapse who attend gynecology clinics Southern Ethiopia 2022
Authors: Tega Ayenew , Yenealem Fentahun , Belay Getahun , Asmare Eden , Getaneh Temesgen , Desalegn Misgana , Dechasa Natnael , Addis Zemenu 
Published: July 2024

Abstract
Introduction
Pelvic organ prolapse is the implosion of one or more pelvic floor structures which affect womens quality of life by compromising overall health, physical, social, structural, functional and emotional well-being.

Objective
To assess the quality of life and its associated factors among women with pelvic organ prolapse who attend gynecology clinics at Gurage zone hospitals, Southern Ethiopia 2022.

Methods
Facility-based cross-sectional study was applied in gurage zone hospital from April, 30 to Jun 30, 2022. Systematic random sampling was employed to select 416 women. Interview based structured questionnaires were applied to collect the data. The collected data were analyzed using Statistical Produte and Service Solution. Binary and multivariable logistic regressions were fitted to assess the association between dependent and independent variables. P-value < 0.05 was used to declare the final statistical significance.

Result
The mean (SD) score of quality of life in this study was 53.57 (21.59). The most affected domains were general health perception and physical limitation (mean (SD) score 67.45 29.24) and (64.26 32.36)) respectively. Had no formal education (AOR = 1.50, 95% CI: 1.02, 3.12), stage III/IV POP (AOR = 2.02, 95% CI: 1.19, 3.60), constipation (AOR = 3.51, 95% CI: 2.12, 7.21), urge urinary incontinence (AOR = 3.89, 95% CI: 2.32, 6.95), and not did regular physical exercise (AOR = 2.18, 95% CI: 1.41, 3.37) were significantly associated with poor quality of life.

Conclusion
More than half of the participants in this study had impaired quality of life. The factor associated with quality of life was had no formal education, stage III/IV, constipation, urge urinary incontinence, and regular physical activity. It is recommended to have access education, counseling regular physical activity, detection, and management of its comorbidity.
Medical students experience in working in a public COVID-19 telehealth program: a descriptive study
Authors: Pedroso Thais Marques , Vasconcelos Isabela Muzzi , de Amorim Caroline Lopes , Coelho Laryssa Reis , Corrêa Maria Augusta Matos , de Aguiar Virgílio Barroso , Mendes Mayara Santos , Roever Leonardo , de Oliveira Clara Rodrigues Alves , Marcolino Milena Soriano 
Published: July 2024

Abstract
Background
Given the health and social needs generated by the COVID-19 pandemic, the Telehealth Network of Minas Gerais, Brazil, implemented a teleconsultation and telemonitoring program to assist patients with suspected or confirmed COVID-19, the TeleCOVID-MG program. The telemonitoring service was conducted by medical students, under the supervision of a physician. The main goal of this study was to analyze the experience of the students while collaborating on the aforementioned telemonitoring program.

Methods
A questionnaire with 27 questions was developed to address the participation of the students in the telehealth program. The questionnaire included questions about the student’s profile, the system usability, and the satisfaction in participating in such a telehealth program. The questionnaire was generated on Google Forms® platform and sent via email to each student who was part of the telemonitoring team.

Results
Sixty students were included in the analysis (median age 25 years-old [interquartile range 24–26], 70% women). Of those, 61.6% collaborated on the telehealth program for more than 6 months, 65.1% performed more than 100 telemonitoring calls, 95.2% reported difficulties in contacting the patient through phone calls; 60.3% believe some patients might have felt insecure about being approached by medical students and not by graduate professionals; and 39.6% reported eventual system instabilities. The main strengths reported by the students were related to the system usability and to the self-perception of the quality of healthcare delivered to the patients. Even though 68.3% of the students mentioned technical difficulties, 96.6% reported that they were promptly solved. Finally, 98.3% believed that the program was useful and would recommend it to an acquaintance.

Conclusion
This study reports a successful experience of undergraduate medical students in a COVID-19 telemonitoring program. Overall, the medical students were satisfied with their participation, especially considering the continuity of clinical practice remotely during a period of classes suspension during the COVID-19 pandemic and their important role in the assistance of patients from low-income regions, which has minimized the health system burden in an emergency context.
Effect of Tronclass combined with team-based learning on nursing students’ self-directed learning and academic performance: a pretest-posttest study
Authors: Hu Longyi , Li Siqi , Zhou Leshan 
Published: July 2024

Abstract

Background
Self-directed learning ability is crucial for lifelong learning. The inadequate self-directed learning ability of nursing students in China may be due to their deficiency in self-management or learning initiative.

Objective
To explore the effect of online learning platform (Tronclass) combined with team-based learning on nursing students’ self-directed learning and academic performance.

Design
Pretest-posttest design.

Participants
From March to July 2023, 69 undergraduate third-year nursing students from a university in Hunan Province were selected through a whole-group sampling method.

Methods
This study used Tronclass to carry out team-based learning in the teaching process of pediatric nursing courses. It compared the self-directed learning ability nursing students before and after courses, and juxtaposed their academic performance with those of their counterparts who graduated in previous years.

Results
When comparing compare motivation, self-management, teamwork and information literacy, which are four subscale aspects of the self-directed Learning Ability Scale, the post-survey scores for these four dimensions are greater than the pre-survey results. The results of the study showed a statistically significant difference (P < 0.05), in the students who engaged in Tronclass combined with team-based learning. Specifically, these students received higher midterm and final grades than to those who had already graduated and did not participate in these activities. (P < 0.05).

Conclusion
Combining Tronclass with team-based learning enhances nursing students’ ability to engage in self-directed learning and improves their performance in midterms and finals, thereby fostering the development of comprehensive competence.
Patient safety culture and associated factors of regional public hospitals in Addis Ababa
Authors: Yayehrad Teshome , Getachew Yeneneh , Muluken Workineh 
Published: July 2024

Abstract
Background
Patient safety culture is the result of individual and group values, attitudes, perceptions, competencies, and patterns of behavior that determine the commitment, style, and proficiency of health providers’ safety management. Globally, millions of adverse events occur annually, with a significant burden on low- and middle-income countries. The burden of injuries and other harm to patients from adverse events is likely one of the top 10 causes of death and disability worldwide. This study aimed to assess patient safety culture and its associated factors in regional public hospitals in Addis Ababa.

Methods
An institution-based cross-sectional study was conducted among 494 healthcare professionals working at regional public hospitals in Addis Ababa. The data were collected using a pretested structured self-administered questionnaire from June 3 to July 30, 2023. The data were entered into Epi info version 7.2 and exported to SPSS version 26.0 for analysis. Binary logistic regression analysis was used to determine the associations between the patient safety culture (dependent variables) and socio-demographic factors, health care providers and system’s. Multicollinearity was checked using VIF, and the adequacy of the final model was assessed using the Hosmer and Lemeshow goodness-of-fit test.

Result
Overall, 48.8% (95% CI: 44.3–53.1) of participants had a good patient safety culture, for a response rate of 93.3%. Factors significantly associated with patient safety culture, as identified through factor analysis, included having 6–10 years of experience (AOR = 1.81, 95% CI = 1.13–2.88), having more than 11 years of experience (AOR = 3.49, 95% CI = 1.27–9.56), reporting adverse events (AOR = 2.47, 95% CI = 1.37–4.45), participating in patient safety programs (AOR = 3.64, 95% CI = 1.91–6.92), and working in obstetrics and pediatric wards (AOR = 0.47, 95% CI = 0.23–0.94) and (AOR = 0.21, 95% CI = 0.097–0.44), respectively.

Conclusion
The overall level of patient safety culture in regional public hospitals was low (< 75%). Factors such as having 6 or more years of experience, reporting adverse events, participating in patient safety programs, and working in obstetrics and pediatric wards were significantly associated with patient safety culture.
Plate fixation of inferior ramus in pubis-ischium ramus improves mechanical stability in Tile B pelvic injures: a cadaveric biomechanical analysis and early clinical experience
Authors: Pan Zhongjie , Qin Lili , Shi Xiaorong , Hu Feng , Li Yuquan , Li Muwen , Chen Min , Huang Wengui , Li Yuanjun , Yang Zhi , Zhao Jinmin , Liu Wei 
Published: July 2024

Abstract
Background
Management of inferior ramus of the pubis-ischium ramus remains controversial, and related research is sparse. The main intention of this study is to describe the biomechanical and clinical outcomes of pubis-ischium ramus fractures in Tile B pelvic injuries and to identify the feasibility and necessity of fixation of the inferior ramus of the pubis-ischium ramus.

Methods
This study comprised two parts: a biomechanical test and a retrospective clinical study. For the biomechanical tests, Tile B-type pelvic injuries were modeled in six cadaver specimens by performing pubis-ischium osteotomies and disruption of the anterior and interosseous sacroiliac ligaments. The superior and/or inferior rami of the pubis-ischium ramus were repaired with reconstruction plates and separated into three groups (A, B, and C). Specimens were placed in the standing position and were loaded axially with two-leg support for three cycles at 500 N. The displacements of sacroiliac joints at osteotomy were measured with Vernier calipers and compared using statistical software. To investigate the clinical outcomes of this technique, 26 patients were retrospectively analyzed and divided into a superior ramus fixation group (Group D) and a combined superior and inferior ramus of the pubis-ischium ramus fixation group (Group E). The main outcome measures were time of operation, blood loss, postoperative radiographic reduction grading, and functional outcomes.

Results
In the vertical loading test, Group E showed better pelvic ring stability than Group D (P < 0.05). However, the shift of the sacroiliac joints was almost identical among the three groups. In our clinical case series, all fractures in Group E achieved bony union. Group E demonstrated earlier weight-bearing functional exercise (2.54 ± 1.45 vs 4.77 ± 2.09; P = 0.004), earlier bony union (13.23 ± 2.89 vs 16.55 ± 3.11; P = 0.013), and better functional outcomes (89.77 ± 7.27 vs 82.38 ± 8.81; P = 0.028) than Group D. The incidence of sexual dysfunction was significantly lower in Group E than that in Group D (2/13 vs 7/13; P = 0.039). Bone nonunion occurred in two patients in Group D, and two patients in Group E had heterotopic ossification. None of the patients exhibited wound complications, infections, implant failures, or bone–implant interface failures.

Conclusions
Fixation of the inferior ramus of a pubis-ischium ramus fracture based on conventional fixation of the anterior pelvic ring is mechanically superior in cadaveric Tile B pelvic injury and shows rapid recovery, good functional outcomes, and low incidence of complications.
Macrophage membrane-reversibly camouflaged nanotherapeutics accelerate fracture healing by fostering MSCs recruitment and osteogenic differentiation
Authors: Wu Cheng , Yan Jing , Ge Chenglong , Xie Lucheng , He Yunjie , Zhao Ziyin , Deng Yekun , Dong Qirong , Yin Lichen 
Published: July 2024

AbstractThe fracture healing outcome is largely dependent on the quantities as well as osteogenic differentiation capacities of mesenchymal stem cells (MSCs) at the lesion site. Herein, macrophage membrane (MM)-reversibly cloaked nanocomplexes (NCs) are engineered for the lesion-targeted and hierarchical co-delivery of short stromal derived factor-1α peptide (sSDF-1α) and Ckip-1 small interfering RNA (Ckip-1 siRNA, siCkip-1) to promote bone repair by concurrently fostering recruitment and osteogenic differentiation of endogenous MSCs. To construct the NCs, a membrane-penetrating α-helical polypeptide first assembles with siCkip-1, and the cationic NCs are sequentially coated with catalase and an outer shell of sSDF-1α-anchored MM. Due to MM-assisted inflammation homing, intravenously injected NCs could efficiently accumulate at the fractured femur, where catalase decomposes the local hydrogen peroxide to generate oxygen bubbles that drives the shedding of sSDF-1α-anchored MM in the extracellular compartment. The exposed, cationic inner core thus enables robust trans-membrane delivery into MSCs to induce Ckip-1 silencing. Consequently, sSDF-1α-guided MSCs recruitment cooperates with siCkip-1-mediated osteogenic differentiation to facilitate bone formation and accelerate bone fracture healing. This study provides an enlightened strategy for the hierarchical co-delivery of macromolecular drugs into different cellular compartments, and it also renders a promising modality for the management of fracture healing.
The managers' perspectives on service providing in women's harm reduction centers during the COVID-19 pandemic: mixed method study
Authors: Rahmani Azam , Janatolmakan Maryam , Rezaei Elham , Tabarrai Malihe 
Published: July 2024

Abstract
Background
The COVID-19 pandemic posed significant challenges for managers overseeing women's harm reduction centers. This study seeks to capture managers' perspectives on the service providing in women's harm reduction centers during the COVID-19 pandemic.

Methods
This convergent mixed-method study conducted in three provinces of Iran: Tehran, Khuzestan, and Kermanshah. The study was carried out between January and May 2023. In the quantitative part, the researchers utilized reports from 10 center managers. A researcher-designed questionnaire was employed to collect data on a wide range of services and referrals provided by the centers. The qualitative part of the research involved conventional content analysis and included 12 individual interviews. Two directors from the Ministry of Health and ten managers of women’s harm reduction centers participated in the interviews. During the interpretation phase, the researchers compared the quantitative and qualitative findings to obtain a comprehensive understanding of the topic.

Results
During the quantitative stage of the study, it was observed that all the managers were women, with an average age of 40.7 ± 7 years. More than half of the managers had obtained a postgraduate education (n = 6, 60%), and a majority of them were married (n = 7, 70%). Additionally, 40% of the managers (n = 4) were working as contractors. During the non-COVID-19 period, there were higher coverage by centers and residents, more referrals of non-injecting drug users and sex workers, and a higher number of group counseling sessions in all three provinces compared to the COVID-19 period. The qualitative analysis revealed two primary themes: "challenges" and "capabilities."

Conclusions
During the COVID-19 pandemic, providing some services and client referrals decreased in the centers, and center managers faced increased challenges. Many of these challenges were in the communication, executive, management, structure, education, financial, civilization, facilities, and socio-cultural sectors. Managers used their skills to manage and control these challenges. It is important to focus on these challenges and managerial capabilities to effectively handle future crises.