bluuebunny/crossref_metadata_2025_split huggingface dataset:
Decreased dynamic variability of the cerebellum in the euthymic patients with bipolar disorder
Authors: Chen Zhenzhu , Zhang Zhifang , Li Feng , Zhao Lei , Bo Qijing , Zhou Yuan , Wang Chuanyue 
Published: February 2024

Abstract
Background
Bipolar disorder (BD) is a complex mental illness characterized by different mood states, including depression, mania/hypomania, and euthymia. This study aimed to comprehensively evaluate dynamic changes in intrinsic brain activity by using dynamic fractional amplitude of low-frequency fluctuations (dfALFF) and dynamic degree centrality (dDC) in patients with BD euthymia or depression and healthy individuals.

Methods
The resting-state functional magnetic resonance imaging data were analyzed from 37 euthymic and 28 depressed patients with BD, as well as 85 healthy individuals. Using the sliding-window method, the dfALFF and dDC were calculated for each participant. These values were compared between the 3 groups using one-way analysis of variance (ANOVA). Additional analyses were conducted using different window lengths, step width, and window type to ensure the reliability of the results.

Results
The euthymic group showed significantly lower dfALFF and dDC values of the left and right cerebellum posterior lobe compared with the depressed and control groups (cluster level PFWE < 0.05), while the latter two groups were comparable. Brain regions showing significant group differences in the dfALFF analysis overlapped with those with significant differences in the dDC analysis. These results were consistent across different window lengths, step width, and window type.

Conclusions
These findings suggested that patients with euthymic BD exhibit less flexibility of temporal functional activities in the cerebellum posterior lobes compared to either depressed patients or healthy individuals. These results could contribute to the development of neuropathological models of BD, ultimately leading to improved diagnosis and treatment of this complex illness.
Aspirin is as effective as low molecular weight heparins in preventing symptomatic venous thromboembolism following arthroscopic anterior cruciate ligament reconstruction
Authors: Yazdi Hamidreza , Eslami Arvin , Torkaman Ali , Elahifar Omid , Kasaeian Amir , Alimoghadam Shaya , Alimoghadam Rojina , Abolghasemian Mansour 
Published: February 2024

Abstract
Objective
The optimal agent for thromboprophylaxis following arthroscopic anterior cruciate ligament reconstruction (ACLR) remains unclear, particularly in patients with a low baseline risk for venous thromboembolism (VTE). This retrospective cohort study aims to compare the effectiveness and safety of aspirin versus low molecular weight heparins (LMWHs) in this specific patient population.

Methods
We analyzed data from patients who underwent ACLR between March 2016 and March 2021, focusing on those with a low risk for VTE. High-risk individuals, identified by factors such as cardiac disease, pulmonary disease, diabetes mellitus, previous VTE, inflammatory bowel disease, active cancer, and a BMI > 40, were excluded (n = 33). Our approach included a thorough review of medical charts, surgical reports, and pre-operative assessments, complemented by telephone follow-up conducted over a 3-month period by a single investigator. We assessed the incidence of symptomatic VTE, including deep vein thrombosis and pulmonary thromboembolism, as the primary outcome. The secondary outcomes included to complications related to the surgery and thromboprophylaxis. Statistical analysis included descriptive statistics, univariate logistic regression models, and calculations of incidence rates.

Result
In our study, 761 patients (761 knees) were included, with 458 (60.18%) receiving aspirin and 303 (39.82%) receiving LMWH. The two groups showed no significant differences in demographic factors except for age. The incidence of VTE was reported at 1.31% (10 individuals). Specifically, five patients in the aspirin group (1.09%) and five patients in the LMWH group (1.65%) developed a symptomatic VTE event (p = 0.53). Additionally, the two groups did not significantly differ in terms of other complications, such as hemarthrosis or surgical site infection (p > 0.05). Logistic regression analysis revealed no statistically significant difference in VTE risk between the two groups.

Conclusion
This study, focusing on isolated ACLR in patients with a low baseline risk for venous thromboembolism, demonstrated that aspirin is equally effective as low molecular weight heparins for VTE prophylaxis following this surgery.

Level of Evidence
III
The Association of Salivary Flow Rate and Sleep Quality among Head and Neck Cancer Survivors after Radiotherapy
Authors: Shen Yen-Wen , Wang Wen-Chen , Lin Nan-Chin , Ningrum Valendriyani , Shieh Tzong-Ming , Shih Yin-Hwa 
Published: February 2024

Abstract
Background
Head and neck cancer survivors suffer from xerostomia and sleep disturbances after radiotherapy, both of which affect their quality of life. This study aimed to explore the role of salivary flow in the oral health and sleep quality of head and neck cancer survivors.

Methods
We recruited 120 head and neck cancer survivors who were experiencing symptoms of dry mouth or sleep disturbances post-radiotherapy from a dental clinic. We gathered their socio-demographic and clinical data, measured their salivary flow rate, and recorded their dry mouth score using the summated xerostomia inventory. Additionally, a dentist collected the DMFT (Decayed, Missing, and Filled Teeth) index. The Pittsburgh Sleep Quality Index was employed to assess their sleep quality.

Results
In this study, xerostomia was observed in nearly 80% of the cancer survivors. The concurrent prevalence of sleep disturbance and xerostomia was at 55%. After five years post-radiotherapy, there was a significant improvement observed in both the quality of sleep (p = 0.03) and the stimulated salivary flow rate (p = 0.04). Additionally, these improvements were noted to have commenced from the third year onwards. A significant association was found between stimulated salivary flow and dry mouth scores with poor sleep quality (p <  0.05).

Conclusions
We recommend that dental professionals prioritize managing both dental and mental health issues equally for head and neck cancer survivors who have undergone radiotherapy within the past 3 years.
Sex estimation using maxillary sinus volume for Chinese subjects based on cone-beam computed tomography
Authors: Wu Zi-Xuan , Bu Wen-Qing , Tang Yu , Guo Yu-Xin , Guo Yu-Cheng , Wang Fei , Meng Hao-Tian 
Published: February 2024

AbstractBackgroundSex estimate is a key stage in forensic science for identifying individuals. Some anatomical structures may be useful for sex estimation since they retain their integrity even after highly severe events. However, few studies are focusing on the Chinese population. Some researchers used teeth for sex estimation, but comparison with maxillary sinus were lack. As a result, the objective of this research is to develop a sex estimation formula for the northwestern Chinese population by the volume of the maxillary sinus and compare with the accuracy of sex estimation based on teeth through cone-beam computed tomography (CBCT).MethodsCBCT images from 349 samples were used to establish and verify the formula. The volume of both the left and right maxillary sinuses was measured and examined for appropriate formula coefficients. To create the formula, we randomly picked 80% of the data as the training set and 20% of the samples as the testing set. Another set of samples, including 20 males and 20 females, were used to compare the accuracy of maxillary sinuses and teeth.ResultsOverall, sex estimation accuracy by volume of the left maxillary sinus can reach 78.57%, while by the volume of the right maxillary sinus can reach 74.29%. The accuracy for females, which can reach 91.43% using the left maxillary sinus, was significantly higher than that for males, which was 65.71%. The result also shows that maxillary sinus volume was higher in males. The comparison with the available results using measurements of teeth for sex estimation performed by our group showed that the accuracy of sex estimation using canines volume was higher than the one using maxillary sinus volume, the accuracies based on mesiodistal diameter of canine and first molar were the same or lower than the volume of maxillary sinus.ConclusionsThe study demonstrates that measurement of maxillary sinus volume based on CBCT scans was an available and alternative method for sex estimation. And we established a method to accurately assess the sex of the northwest Chinese population. The comparison with the results of teeth measurements made the conclusion more reliable.
Advance care planning with older Norwegian adults in their homes: a narrative ethnographic study
Authors: Festvåg Line Elida , Sverre Beate Lie , Paulsen Ørnulf , Eilertsen Grethe 
Published: February 2024

Abstract
Background
The aim of advance care planning (ACP) is to enable patients to define and discuss their values and preferences to ensure that the care they receive is consistent with their needs and wishes. Most studies of ACP with older adults focus on conversations conducted in institutions. This study aimed to explore how ACP with older patients is carried out and experienced by healthcare professionals when the conversations occur in their private homes.

Methods
The data were obtained from participant observations of ACP conversations in the homes of eight older patients with advanced cancer, which also involved relatives and healthcare professionals. Additionally, ethnographic interviews were conducted with the healthcare professionals. We undertook a narrative analysis of what was said, and how the individuals acted and interacted.

Results
The home influenced both the substance and form of the ACP conversations. The patients and relatives welcomed the healthcare professionals as guests and were encouraged to share their perceptions of their current situation, joys and worries. Their values were often implicit in their stories about past experiences. The planning mainly focused on life-prolonging treatment and the preferred future place of care. Several patients were not ready to discuss one or more ACP issues. The palliative-care-team physician addressed the patients’ readiness for ACP by asking for permission to move on to a different topic, shifting between serious and lighter topics, and using elements from the home as ‘door openers’ to continue conversations. ACP conversations were an essential basis for future palliative care and cooperation, giving important additional information about the patient and their relatives.

Conclusion
Conducting the ACP conversations in the patients’ homes ensured a homely atmosphere that facilitated a caring approach when sensitive issues were discussed, and in turn supported the identification of important personal values. The healthcare professionals expressed that the ACP conversations represented an essential common reference point and provided a shared awareness of the expected disease trajectory and the values, preferences and needs of the patient. These findings are particularly important given that many older patients struggle to verbalize or form an opinion on issues affecting their future.
The impact of COVID-19 on menstrual cycle’s alterations, in relation to depression and sleep disturbances: a prospective observational study in a population of medical students
Authors: Polese Daniela , Costanzi Flavia , Bianchi Paola , Frega Antonio , Bellati Filippo , De Marco Maria Paola , Parisi Pasquale , Bruni Oliviero , Caserta Donatella , Cozza Giuliana 
Published: February 2024

Abstract
Background
The sars-Cov-2 pandemic has determined psychological stress, particularly in the young population of medical students. We studied the impact of the pandemic on menstrual cycle alteration in relation to psychological stress, presence of depression, sleep disturbances and post-traumatic stress, on a population of medical students.

Methods
293 female students at the Faculty of Medicine and Psychology of the Sapienza University of Rome (23.08 years old ± 3.8) were enrolled. In March 2021, one year after quarantine, a personal data sheet on menstrual cycle, examining the quality of the menstrual cycle during the pandemic, compared to the previous period. Concomitantly, the Beck Depression Inventory and the Impact of Event Scale have been administered. A Pearson chi-square test was assessed to evaluate the difference between the characteristics of the menstrual cycle and the scores obtained with the questionnaires.

Results
A statistically significant association between menstrual alterations and stress during pandemic had been found. The onset of depressive symptoms and sleep disturbances was observed in 57.1% and in 58.1% of young women with cycle’s alterations, respectively. Amenorrhea was three times more common in female students with depressive symptoms, premenstrual syndrome had a significant correlation with both depression and sleep disturbances. The pandemic has been related to menstrual alterations, with depressive symptoms and sleep disorders. Amenorrhea is connected to depression, as observed on the functional hypothalamic amenorrhea.

Conclusions
The pandemic affected the menstrual cycle as well as the depressive symptoms and sleep. Practical implications of the study lead to the development of strategies for psychological intervention during the pandemic experience, in order to help medical trainees, with specific attention to women’s needs. Future studies should analyze the impact of other types of social stress events, on sleep, depression and the menstrual cycle beside the pandemic.
To what extent the weight changes impact the risk of hypertension among menopausal women: insights from Tehran lipid and glucose study
Authors: Saei Ghare Naz Marzieh , Mousavi Maryam , Noroozzadeh Mahsa , Farahmand Maryam , Azizi Fereidoun , Ramezani Tehrani Fahimeh 
Published: February 2024

Abstract
Background & aim
The association between weight change and incident hypertension (HTN) in menopausal women has not been well characterized. This study aimed to determine whether weight changes after menopausal years make a difference in incidents of hypertension.

Materials & methods
This population-based study was performed using data collected from Tehran Lipid and Glucose Study cohort (1999–2018). Women who had natural and early menopause were followed up every 3 years. Data gathering was performed through the standard protocol of the study. Statistical analysis was performed using multivariable Cox hazard regression analysis. We used the ‘survival’ package in the R software version 3.6.0 to fit survival models.

Results
A total of 487 menopausal women met the inclusion criteria; 62.6% had natural menopause and remained had early menopause. Among the participants, 65.5% experienced HTN. The highest proportion of participants had > 5% weight gain, while the lowest had 3–5% weight gain. Either losing body weight (lost > 5%: HR: 0.44; CI 95%, 0.32, 0.62; p < 0.001), (lost 3–5%; HR: 0.47; CI 95%, 0.26, 0.84; p = 0.01), and weight gain > 5% (HR: 0.69; CI 95%, 0.51, 0.91; p = 0.01), were associated with decreased risk of HTN after adjustment for confounders. In this study, weight loss and gain have a protective impact on the development of HTN in subjects. For incident HTN, age (HR: 1.04 (1.01, 1.08), p = 0.004), fasting blood glucose (HR: 1.01, CI 95%:1.00, 1.01; p < 0.001), body mass index (1.02 (1.00, 1.05), p = 0.03) and smoking (1.70 (1.11, 2.58), p = 0.01) were positively associated with HTN.

Conclusions
Our study indicates the significant association of weight change with hypertension risk in later life among menopausal women.
Long-term trends in international medical electives fees: a database mining study
Authors: Beckschulte Kai , Lederer Ann-Kathrin , Storz Maximilian Andreas 
Published: February 2024

Abstract
Background
Abroad medical electives are recognized as high-impact practice and considered a necessity to provide global health training. As of recently, the COVID-19 pandemic and its related travel restrictions prohibited most international elective activities. Another important barrier to abroad electives that received comparably little attention is elective and application fees, which – combined – may be as high as $5000 per month, and may prevent students with limited financial resources from applying for an international elective. Elective fees have never been systematically analyzed and trends in teaching and application fees have rarely been subject to dedicated scientific investigations.

Methods
Using data from two large elective reports databases, the authors addressed this gap in the literature. The authors analyzed trends in abroad elective fees within the last 15 years in some of the most popular Anglo-American elective destinations among students from Germany, including the United States of America, Australia, New Zealand, the Republic of South Africa, Ireland and the United Kingdom.

Results
The authors identified n = 726 overseas elective reports that were uploaded between 2006 and 2020, of which n = 438 testimonies met the inclusion criteria. The United Kingdom and Australia were the most popular elective destinations (n = 123 and n = 113, respectively), followed by the Republic of South Africa (n = 104) and the United States of America (n = 44). Elective fees differed substantially—depending on the elective destinations and time point. Median elective fees were highest in the United States of America (€ 1875 for a 4-week elective between 2018–2020), followed by the Republic of South Africa (€ 400) and Australia (€ 378). The data also suggests an increasing trend for elective fees, particularly in the United States.

Conclusions
Rising fees warrant consideration and a discussion about the feasibility of reciprocity and the bidirectional flow of students in bidirectional exchange programs.
Moral approval of xenotransplantation in Egypt: associations with religion, attitudes towards animals and demographic factors
Authors: Andrade Gabriel , AboHamza Eid , Elsantil Yasmeen , Ayoub AlaaEldin , Bedewy Dalia 
Published: February 2024

AbstractXenotransplantation has great potential as an alternative to alleviate the shortage of organs for donation. However, given that the animal most suited for xenotransplantation is the pig, there are concerns that people in Muslim countries may be more hesitant to morally approve of these procedures. In this study, the moral approval of xenotransplantation was assessed in a group of 895 participants in Egypt. The results showed that religiosity itself does not predict moral approval of xenotransplantation, but religious identity does, as Muslims are less likely to approve of xenotransplantation than Christians. However, the strongest predictor of moral approval of xenotransplantation was gender, with women displaying less approval. A partial mediating factor in this association was concern for animal welfare. Based on these results, some implications for public policy are discussed.
Survival analysis of laparoscopic surgery and open surgery for hilar cholangiocarcinoma: a retrospective cohort study
Authors: Yin Yaolin , Tao Jilin , Xian Yin , Hu Junhao , Li Yonghe , Li Qiang , Xiong Yongfu , He Yi , He Kun , Li Jingdong 
Published: February 2024

Abstract
Background/purpose
This study compared the clinical efficacy and safety of laparoscopic versus open resection for hilar cholangiocarcinoma (HCCA) and analyzed potential prognostic factors.

Methods
The study included patients who underwent HCCA resection at our center from March 2012 to February 2022. Perioperative complications and postoperative prognosis were compared between the laparoscopic surgery (LS) and open surgery (OS) groups.

Results
After screening 313 HCCA patients, 68 patients were eligible for the study in the LS group (n = 40) and OS group (n = 28). Kaplan-Meier survival curve analysis revealed that overall survival > 2 years and 3-year disease-free survival (DFS) were more common in the LS than OS group, but the rate of 2-year DFS was lower in the LS group than OS group. Cox multivariate regression analysis revealed age (< 65 years), radical resection, and postoperative adjuvant therapy were associated with reduced risk of death (hazard ratio [HR] = 0.380, 95% confidence interval [CI] = 0.150–0.940, P = 0.036; HR = 0.080, 95% CI = 0.010–0.710, P = 0.024 and HR = 0.380, 95% CI = 0.150–0.960, P = 0.040), whereas preoperative biliary drainage was an independent factor associated with increased risk of death (HR = 2.810, 95% CI = 1.130–6.950, P = 0.026). Perineuronal invasion was identified as an independent risk factor affecting DFS (HR = 5.180, 95% CI = 1.170–22.960, P = 0.030).

Conclusions
Compared with OS, laparoscopic HCCA resection does not significantly differ in terms of clinical efficacy. Age (<65 years), radical resection, and postoperative adjuvant therapy reduce the risk of death, and preoperative biliary drainage increases the risk of death.
Liquid plasma promotes angiogenesis through upregulation of endothelial nitric oxide synthase-induced extracellular matrix metabolism: potential applications of liquid plasma for vascular injuries
Authors: Kang Sung Un , Kim Haeng Jun , Ma Sukhwal , Oh Doo-Yi , Jang Jeon Yeob , Seo Chorong , Lee Yun Sang , Kim Chul-Ho 
Published: February 2024

Abstract
Background
Applications of nonthermal plasma have expanded beyond the biomedical field to include antibacterial, anti-inflammatory, wound healing, and tissue regeneration. Plasma enhances epithelial cell repair; however, the potential damage to deep tissues and vascular structures remains under investigation.

Result
This study assessed whether liquid plasma (LP) increased nitric oxide (NO) production in human umbilical vein endothelial cells by modulating endothelial NO synthase (eNOS) phosphorylation and potential signaling pathways. First, we developed a liquid plasma product and confirmed the angiogenic effect of LP using the Matrigel plug assay. We found that the NO content increased in plasma-treated water. NO in plasma-treated water promoted cell migration and angiogenesis in scratch and tube formation assays via vascular endothelial growth factor mRNA expression. In addition to endothelial cell proliferation and migration, LP influenced extracellular matrix metabolism and matrix metalloproteinase activity. These effects were abolished by treatment with NG-L-monomethyl arginine, a specific inhibitor of NO synthase. Furthermore, we investigated the signaling pathways mediating the phosphorylation and activation of eNOS in LP-treated cells and the role of LKB1-adenosine monophosphate-activated protein kinase in signaling. Downregulation of adenosine monophosphate-activated protein kinase by siRNA partially inhibited LP-induced eNOS phosphorylation, angiogenesis, and migration.

Conclusion
The present study suggests that LP treatment may be a novel strategy for promoting angiogenesis in vascular damage.

Graphical Abstract