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Comparing the positioning of TOT (outside-in) and TVT-O (inside-out) using perineal u...
Ecem Eren
Ozan Doğan

Ecem Eren

and 1 more

August 27, 2024
Objective To investigate ultrasound features following TOT ( outside-in) and TVT-O (inside out) surgery. Design A randomised prospective study Setting Private clinic in Population From May 2021 to May 2023, 49 patients underwent TOT and 48 underwent TVT-O. Methods Ultrasound exams and ICIQ-SF assessments were conducted during the sixth month postoperatively. Main outcome measures The mesh’s position along the urethral length and its distance from the urethra were recorded. Additionally, bladder neck mobility, bladder neck descent, pubourethral distance, urethral thickness, and bladder descent were measured pre- and postoperatively. Results Both groups had similar demographics (p > 0.05). No significant difference was found in sling placement percentiles between the groups (p > 0.05). However, urethral distances differed significantly (Z=-2.207; p=0.027), with TOT patients having greater distances than TVT-O patients (p < 0.05). There was no significant difference in pre- and postoperative ICIQ-SF values within each group (p > 0.05). Conclusion Our study found a significant difference in mesh-urethra distance between TVT-O and TOT procedures, but this did not affect postoperative questionnaire results.
Wild ungulates and cattle have different effects on litter decomposition as revealed...
Yongchun Hu
Jiawei Feng

Yongchun Hu

and 4 more

August 27, 2024
In forest ecosystems, litter decomposition is essential to sustaining productivity and nutrient cycling. Large herbivores are crucial in determining the processes of nutrient cycling. The temperate woods of Asia are growing more and more damaged and broken up by the widespread increase in human activity, including excessive livestock grazing. However, less research has been done on the impact of wild ungulates and cattle on the decomposition of forest litter. In this study, the effects of adding cattle and sika deer (Cervus nippon) feces to litter decomposition were examined using a litterbag experiment. Northeastern China was the study’s location from July 2022 to October 2023. We found that the addition of deer feces significantly reduced litter decomposition, but the addition of cattle feces greatly increased litter decomposition. The presence of cattle and deer excrement significantly accelerated the release of C after one year of litter decomposition. Compared with the results of the control group (no addition of feces), the addition of cattle and sika deer feces increased C release by 37.45% and 22.69%, respectively. Fecal addition increased the release of N; however, for the three treatment groups, the maximum accumulation of N occurred in the middle of litter decomposition, which may have been due to the initial chemical quality of the leaves and snow melt as well as nutrient limitations at the sites. Compared with the results of the control group, P release in the feces of cattle increased by 4.35%, but P release in the feces of deer decreased by 27.55%. Our findings demonstrate that broad-scale patterns of nitrogen cycling should be closely monitored for the consequences of fecal deposition by an excess of large livestock and ungulates in forests.
Host specificity and geographic dispersion shape virome diversity in Rhinolophus bats
Daxi Wang
Linmiao Li

Daxi Wang

and 13 more

August 27, 2024
Rhinolophus bats have been identified as natural reservoirs for viruses with global health implications, including severe acute respiratory syndrome–related coronaviruses (SARSr-CoV) and swine acute diarrhea syndrome-related coronavirus (SADSr-CoV). In this study, we characterized the individual viromes of 603 bats to systematically investigate the diversity, abundance, and geographic distribution of viral communities within R. affinis, R. sinicus, and 11 related bat species. The massive metatranscriptomic data revealed substantial viral genome resources of 133 vertebrate-infecting viral clusters, which contain occasional cross-species transmission across mammalian orders and specially across bat families. Notably, those viruses included nine clusters closely related to human and/or livestock pathogens, such as SARS-CoVs and SADS-CoVs. The investigation also highlighted distinct features of viral diversity between and within bat colonies, which appear to be influenced by the distinct host population genetics of R. affinis and R. sinicus species. The comparison of SARSr-CoVs further showed varied impact of host specificity along genome-wide diversification and modular viral evolution among Rhinolophus species. Overall, the findings point to a complex interaction between host genetic diversity, and the way viruses spread and structure within natural populations, calling for continued surveillance efforts to understand factors driving viral transmission and emergence in human populations. These results present the underestimated spillover risk of bat viruses, highlighting the importance of enhancing preparedness and surveillance for emerging zoonotic viruses.
Estimating the future with the Sustainability assessment methodology to soil-associat...
Gerrit Hoogenboom
Andrea Onelia Rodríguez-Roa

Professor Gerrit Hoogenboom

and 3 more

August 27, 2024
Agricultural sustainability assessments have gained high importance during the last decades. Different tools have been developed for these assessments such as the Sustainability assessment methodology oriented to soil-associated agricultural experiments (SMAES). SMAES quantifies the current sustainability of the different treatments evaluated in experiments associated with the soil. However, efforts aimed to maintain or increase the crop systems sustainability must be planned and measured in the short, medium, and long-term. In this work, some parameters are added to SMAES to estimate the future sustainability. The first parameter is the construction of climate scenarios (RCP 4.5 and 8.5, model CCSM4, periods 2050-2100) to establish the conditions of change in the future. Second, crop yield is modelled with DSSAT (Decision Support System for Agrotechnology Transfer) using the aforementioned climate scenarios. Third, yield modelling results and SMAES sustainability indexes (IS) from climate scenarios are integrated. As a case of study, the current sustainability (IS-A) of five potato fertilization split treatments were initially estimated: Commercial control (Control), Fertilization recommended by Agrosavia (As), Monthly split fertilization recommended by Agrosavia (AsSplit), AsSplit decreasing the amount of fertilizer by 25% (AsSp25), and AsSplit decreasing the amount of fertilizer by 50% (AsSp50). AsSp50 generated the highest current and future sustainability with IS-A = 0.90, IS-45, and IS-85 = 0.88. Results suggest that integrated fertilization management practices generate a higher potato crop sustainability in the Colombian high Andean, both today and the future.
Integrative multi-omics reveals the mechanism of ulcerative colitis treated with Ma-M...
Hailing Huang
Bailu Duan

Hailing Huang

and 14 more

August 27, 2024
The mechanism of action of Ma-Mu-Ran Antidiarrheal Capsules (MMRAC) in the treatment of ulcerative colitis (UC) model was investigated by combining metabolomics, transcriptomics and intestinal microbiota detection techniques. The high dose group of MMRAC was determined as the best therapeutic dose by pathological changes and biochemical indexes. Transcriptome analysis revealed that 360 genes were differentially altered after MMRAC treatment. Metabolomic analysis using colon tissue yielded 14 colon tissue metabolites with significant differences. Intestinal flora analysis showed that 26 major microorganisms were identified at the genus level. Based on a thorough multi-omics analysis of transcriptomics, metabolomics, and gut flora, it was determined that MMRAC regulated cysteine and methionine metabolism, arginine biosynthesis, and sphingolipid metabolism and their respective genes BHMT, PHGDH, iNOS, and SPHK1, which in turn served to inhibit UC-generated inflammatory responses and oxidative stress. Additionally, MMRAC regulated the abundance of Coprococcus, Helicobacter, Sutterella, Paraprevotella, and Roseburia in the intestinal tracts of UC mice, which was regulated toward normal levels, thereby restoring normal intestinal function.
Virome characterization of native wild-rice plants discovers a novel pathogenic rice...
Wenkai Yan
Yu Zhu

Wenkai Yan

and 11 more

August 27, 2024
Pandemics originating from zoonotic viruses have posed significant threats to human health and agriculture. Recent discoveries have revealed that wild-rice plants also harbor viral pathogens capable of severely impacting rice production, a cornerstone food crop. In this study, we conducted virome analysis on ~1000 wild-rice individual colonies and discovered a novel single-strand positive-sense RNA virus prevalent in these plants. Through comprehensive genomic characterization and comparative sequence analysis, this virus was classified as a new species in the genus Polerovirus, designated Rice less tiller virus (RLTV). Our investigations elucidated that RLTV could be transmitted from wild-rice to cultivated rice via a specific insect vector, the aphid Rhopalosiphum padi, causing less tiller disease symptoms in rice plants. We generated an infectious cDNA clone for RLTV and demonstrated systemic infection of rice cultivars and induction of severe disease symptoms following mechanical inoculation or stable genetic transformation. We further illustrated transmission of RLTV from stable transgenic lines to healthy rice plants by the aphid vector, leading to the development of disease symptoms. Notably, our database searches showed that RLTV and another polerovirus isolated from a wild plant species are widely circulating not only in wild rice but also cultivated rice around the world. Our findings provide strong evidence for a wild plant origin for rice viruses and underscore the imminent threat posed by aphid-transmitted rice Polerovirus to rice cultivar.
Managing Popularity Bias in Expert Recommendation System of CQA with Counterfactual R...
Junru Li
Baisong Liu

Junru Li

and 4 more

August 27, 2024
The core purpose of a recommender system is to provide users with personalized recommendations, not just popular items. The current expert recommendation training paradigm in community Question Answering (CQA) scenarios, i.e., fitting a recommendation model is the loss function of the user’s behavioral data is lowered, making the model biased towards experts with higher popularity. This produces the dreaded Matthew effect where popular experts are recommended more frequently and become more popular. The problem of expert recommendation in existing CQA mainly focuses on the perspective of improving recommendation accuracy, while traditional recommender systems solve the popularity bias problem with inverse propensity weighting (IPW). However, the IPW method is highly sensitive to the weighting strategy, and the sparse interaction data in real scenarios causes estimating the propensity score to become difficult. In this work, we consider the intrinsic cause-cause relationship of the popularity bias problem in a new perspective. We find that the expert popularity bias mainly exists in the direct influence of expert nodes on the ranking scores, i.e., the intrinsic attributes of the experts are the reason why the expert recommender system gives too high ranking scores. To mitigate the popularity bias, it is an effective approach to answer the counterfactual question, i.e., what would be the ranking scores assuming that the model uses only expert attributes. To this end, we innovatively developed a causal diagram to illustrate the causal relationships among the factors in the expert recommendation process. During training, we utilize multi-task learning to quantify the contribution of each node to the final ranking score; during testing, we mitigate the popularity bias problem by constructing a counterfactual ranking score that removes the popularity of experts through counterfactual reasoning. It is important to note that our proposed scheme only achieves its purpose by modifying the traditional recommended learning process and is not specific to a specific model, so it can be easily implemented in existing methods. We demonstrated this experimentally on the latest six models in the current CQA. It is verified on the real data set of Zhihu question-answering community?, and the experiment shows that the algorithm can effectively mitigate the influence of popularity bias, while ensuring that the recommendation performance does not fluctuate greatly.
Can Fintech development facilitate the application of industrial robotics in enterpri...
Li Jun
Qian Mei

Li Jun

and 2 more

August 27, 2024
Financial technology, as a form of financial innovation driven by digital technology, serves as a new engine for the intelligent transformation and high-quality development of the manufacturing industry. This paper takes the development of financial technology as a starting point and the strategic goal of intelligent transformation in the manufacturing industry as a foundation to elucidate the mechanism of financial technology driving the application of industrial robots and evaluate its effectiveness. The results of the benchmark regression analysis indicate that the improvement in regional financial technology levels leads to a significant enhancement in the quality of the manufacturing industry. Robustness tests and instrumental variable methods further confirm the stability of these results. Mechanism testing results reveal that the level of financing constraints faced by companies positively moderates the relationship between the level of financial technology and the application of industrial robots, in tandem with the process of marketization. Heterogeneity analysis further highlights that the promoting effect of regional financial technology development levels on the application level of industrial robots is more pronounced in technology-intensive, non-state-owned, high internal control quality, and eastern region enterprises. The research findings provide theoretical logic and empirical evidence for understanding how financial technology empowers high-quality development in manufacturing, offering new insights and avenues for accelerating the path towards "Made in China."
Sacrococcygeal teratoma in an adult female: A case report
Dikshanta Acharya
Aashis Poudel

Dikshanta Acharya

and 4 more

August 27, 2024
Key clinical messageSacrococcygeal teratomas, although common in newborns, are rare in adults and pose significant diagnostic challenges due to their asymptomatic nature and potential for malignancy. Early surgical excision is crucial to prevent malignant transformation, highlighting the need for vigilance and timely intervention in cases of incidental findings. Key words: case report, sacrococcygeal region, teratoma
Lineage-specific phylogenetic structure of boreal habitats suggests different assembl...
Angelo Armijos Carrion
Sander Bennett Boisen

Angelo Armijos Carrion

and 4 more

August 27, 2024
Understanding how plant communities are assembled is critical to explaining the functioning of ecosystems and the maintenance of biodiversity. The phylogenetic distance among species in a community (community phylogenetic structure) has been used to infer deterministic and stochastic assembly processes, albeit with criticisms. However, the effect of the phylogenetic scale (old versus young lineages) and spatial scale on measures of community phylogenetic structure are rarely tested especially in the boreal biome, yet essential to unravel different assembly processes that might operate across species in a community. We examined lineage-specific phylogenetic structure of six plant communities defined at the habitat scale, and the phylogenetic structure of communities defined at a plot level scale (1m2). We obtained vascular plant species lists for six habitats (arctic-alpine barren, bog, fen, kalmia barren, limestone barren, and serpentine barren) on the island of Newfoundland, Canada, and 73 permanent vegetation plots within three of the above habitats to estimate their mean pairwise phylogenetic distance standardized for sample size (SES-MPD). Contrary to the expectation under the stress-dominance hypothesis of phylogenetic clustering in challenging boreal environments, the majority of clades had random phylogenetic structure. However, we observed a pattern consistent across most habitats of a shift from phylogenetic clustering at the deepest nodes of the angiosperms to no phylogenetic structure at shallower nodes, suggesting that different assembly processes may be operating at different phylogenetic scales within a habitat. As expected, all vegetation plot communities at a fine spatial scale showed strong phylogenetic overdispersion likely explained by biotic interactions. Our lineage-specific approach to estimate SES-MPD proved useful to outline testable hypotheses on the evolution and role functional traits play in community structure and assembly of boreal habitats
Differential modulation of allergic rhinitis nasal transcriptome by dupilumab and all...
Chun-Ting Lin
Chi-Wei Lin

Chun-Ting Lin

and 3 more

August 27, 2024
Differential modulation of allergic rhinitis nasal transcriptome by dupilumab and allergy immunotherapy: correspondenceChun-Ting Lin1, Chi-Wei Lin2, Su-Boon Yong3,4,5 Chin-Yuan Yii61. Department of pharmacy, Chung Shan Medical University Hospital, Taiwan.2. College of Nursing, Asia University, Taichung, Taiwan.3. Department of Allergy and Immunology, China Medical University Children’s Hospital, Taichung, Taiwan.4. Department of Medicine, College of Medicine, China Medical University, Taichung, Taiwan5. Center for Allergy, Immunology, and Microbiome (A.I.M.), China Medical University Hospital, Taichung, Taiwan.6. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Landseed International Hospital, Taoyuan, Taiwan.Corresponding author:1.Chin-Yuan Yii, MDDivision of Gastroenterology and Hepatology, Department of Internal Medicine, LandseedInternational Hospital, Taoyuan, TaiwanEmail: yiichinyuan@gmail.com2.Su-Boon Yong, MD, PhDDepartment of Allergy and Immunology, China Medical University Children’s Hospital, Taichung, Taiwan, Republic of ChinaE-mail: yongsuboon@gmail.comTotal word count of the manuscript: 541Dear Editor,We have carefully examined the study conducted by Dr. Matthew F. Wipperman and colleagues, titled ”Differential Modulation of Allergic Rhinitis Nasal Transcriptome by Dupilumab and Allergy Immunotherapy1.” The research offers significant insights into how treatment with dupilumab alone, or in combination with subcutaneous immunotherapy, affects gene expression in allergic rhinitis. The team’s diligent efforts in this domain are highly commendable. However, it is also crucial to acknowledge certain limitations within the scope of this investigation.Firstly, the reliance on Timothy grass (Phleum pratense) as the principal allergen in this research prompts consideration of its geographic and demographic relevance. While Timothy grass serves as a prevalent allergen in Europe and North America, its distribution and incidence differ across other regions2. This study lacks specific information about the geographic or demographic profiles of the participants, which is crucial given the predominance of Timothy grass in temperate zones. Consequently, the generalizability of the results may be constrained, particularly in tropical or subtropical regions where Timothy grass is uncommon, potentially limiting the applicability of the findings.Second, this study incorporated data from two independent trials, with sample sizes of 15 and 103 participants, respectively. Considering the global prevalence of allergic rhinitis, estimated at 19.1%3, the small sample sizes may undermine the statistical power and the wider applicability of the study’s outcomes. To bolster the statistical robustness and reliability of subsequent investigations, an increase in sample size is recommended. Expanding the cohort would enhance the accuracy in reflecting population variability and ensure more dependable results. Moreover, the initial participant pool was limited to specific geographic areas. Future studies should strive for a more heterogeneous sample by including individuals from diverse geographic and ethnic backgrounds. Such inclusivity would broaden the applicability of the results, ensuring they reflect a more comprehensive demographic spectrum. This methodological refinement is crucial for a deeper understanding of the therapeutic efficacy across varied patient groups.Third, exclusion criteria of this investigation barred participants who had used antihistamines shortly before the screening and nasal allergen challenge visits. Yet, it remains uncertain if the researchers monitored ongoing antihistamine use post-screening through the follow-up period. Notably, research by Erwin W. Gelfand and colleagues4has shown that fexofenadine-a widely used H1 antihistamine in Europe and the United States-can modulate IL-4 and IL-5 levels, which could significantly affect study outcomes. Consequently, this oversight raises concerns regarding the potential influence of antihistamines on the results, emphasizing the necessity for vigilant monitoring of antihistamine use during follow-up assessments. To mitigate these risks and ensure the integrity of the findings, future research should rigorously track all concurrent medication use, including antihistamines, both during and subsequent to the screening phase. Such meticulous oversight will safeguard the study’s conclusions from confounding variables, thus providing a more accurate evaluation of treatment effects.In summary, the research conducted by Dr. Matthew F. Wipperman et al. significantly advances our knowledge of how dupilumab can normalize nasal tissue gene expression. Prior studies highlight that the United States spends roughly $3.4 billion annually on treating allergic rhinitis, a large part of which goes towards medications5. Further research yielding deeper insights and robust data could lessen the impact of allergic rhinitis on patients globally and might also diminish the considerable economic strain it places on healthcare systems.
Mechanisms matching timing to resources: comparisons of closely related, seasonally s...
Ellen Ketterson
Timothy Greives

Ellen Ketterson

and 1 more

August 27, 2024
As day length increases in spring, birds prepare to migrate and breed, relying on timing mechanisms shaped by selection to match ecological conditions suitable for reproduction. As the climate changes these mechanisms will determine how successful birds will be in keeping up. In this contribution, we review studies comparing free-living and captive migratory and resident populations of a songbird, the dark-eyed junco, as they diverge in behavior and physiology during pre-breeding (spring) despite co-occurrence in the same environment. We report on differences in mechanisms related to timing including photoperiodic thresholds, endocrine profiles of testosterone and corticosterone, and gene expression. We also provide evidence for genetic differences in timing among populations based on sustained differences in timing when populations were held in a common environment. We conclude that existing variation in pre-breeding physiology likely serves to match timing of migration and reproduction to the appearance of favorable environments where breeding occurs. Greater knowledge of mechanisms responsible for variation in timing will allow better predictions of future adaptation.
”Hyperbaric Oxygen Therapy: A Breakthrough in the Management of Sudden Sensorineural...
Sarah Shaheen

Sarah Shaheen

August 27, 2024
”Hyperbaric Oxygen Therapy: A Breakthrough in the Management of Sudden Sensorineural Hearing Loss”Sudden sensorineural hearing loss is defined as sensorineural hearing loss of 30dB or greater over at least three contiguous audiometric frequencies occurring within a 72-hr period. (1) There can be multiple etiologies in patients that develop SSNHL i.e. infectious disease, trauma, neoplastic and vascular. Most of the cases are idiopathic. Some reports found psychological problems such as depression and other lifestyle choice such as drinking and smoking to cause SSNHL by microthrombus development and inner ear arteriosclerosis. (2)One of the ways we can treat SSNHL is by the administration of hyperbaric oxygen. Since that the cochlea and the structures within it i.e. stria vascularis and most importantly, organ of Corti need abundant oxygen supply. Direct vascular supply to the organ of Corti is insignificant. The main oxygen source for these intracochlear tissues is from the perilymph. (3) Hyperbaric oxygen can raise perilymph oxygen levels and can restore hearing in lots of patients with SSNHL. The American Academy of Otolaryngology supports the use of hyperbaric oxygen for period of three months and advises against the use of antiviral thrombolytics, vasodilators, vasoactive drugs, or antioxidants. Intratympanic steroids and hyperbaric oxygen therapy can be beneficial for individuals who did not respond to the first round of steroids, even up to 10 weeks after the onset of symptoms. It is important to note that while hearing aids can help individuals with SSNHL, there is a matter of expense involved. HBOT is a much cheaper alternative to hearing aids which have to be replaced every three to five years. For individuals with early SSNHL hyperbaric oxygen is particularly effective. (4). A retrospective analysis published by Susannah Sherlock and her colleagues showed promising outcomes in which thirty three percent of the patients showed complete resolutions whereas forty percent of the individuals showed major improvement. (5)In conclusion HBOT has shown promising results as a treatment for SSNHL. As the medical community continues to explore and refine these therapeutic modalities, HBOT stands out as suitable option for improving SSNHL in the affected individual.REFERENCES1. Kuhn M, Heman-Ackah SE, Shaikh JA, Roehm PC. Sudden Sensorineural Hearing Loss. Trends Amplif [Internet]. 2011 [cited 2024 Jul 25]; Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC40408292. Xie W, Karpeta N, Tong B, Liu J, Peng H, Li C, et al. Etiological analysis of patients with sudden sensorineural hearing loss: a prospective case–control study. Sci Rep [Internet]. 2023 Mar 30 [cited 2024 Jul 25];13(1):5221. Available from: https://www.nature.com/articles/s41598-023-32085-7\#citeas3. Olex-Zarychta DP. Successful treatment of sudden sensorineural hearing loss by means of pharmacotherapy combined with early hyperbaric oxygen therapy. Medicine. 2017;4. Murphy-Lavoie HM MM. Hyperbaric Treatment of Sensorineural Hearing Loss [Internet]. 2023 [cited 2024 Jul 25]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK459160/5. Sherlock S TKKMPCTA. Hyperbaric oxygen therapy in the treatment of sudden sensorineural hearing loss: a retrospective analysis of outcomes. Diving Hyperb Med [Internet]. 2016[cited 2024 Jul 25]; Available from: https://pubmed.ncbi.nlm.nih.gov/27723017/Conflict of Interest: The author declares that they have no conflict of interestFunding: We received no specific grant from any public, commercial or not-for-profit funding agency.
Modeling the Soil Evaporation Loss in Typical Subtropical Secondary Forests-A Changsh...
Yong Zhang
Xinping Zhang

Yong Zhang

and 7 more

August 27, 2024
Under the more frequent and extreme global drought events, utilizing stable isotopes to quantify soil evaporation losses ( SEL) is of great significance for understanding the water supply capacity from soil to plants. From March 2017 to September 2019, we continuously monitored meteorological factors, soil temperature and humidity, and collected precipitation and soil water stable isotope data. Used the Craig-Gordon (C-G) model and the line-conditioned excess (lc-excess) couple with Rayleigh fractionation (RL) model to quantify SEL in subtropical secondary forests. The results showed: (1) The theoretical Evaporation Line (EL) slope correlated negatively with air temperature ( AT). Water source isotopic values were more positive in autumn and more negative in spring. The aridity index ( AI) and soil evaporation loss ratio ( f) from both models indicated drier conditions from March to September 2018 compared to 2017 and 2019; (2) Comparative analysis showed the C-G model agreed more closely with measured evapotranspiration ( ET0) and water surface evaporation ( E) than the RL model, indicating its better suitability for the study region; (3) Because the “inverse temperature effect” of the precipitation isotopes, the linear fitting method was not suitable for determining the water source in spring, summer, autumn, and on the annual scale, while the EL slope obtained by the fitted slope was consistent with the basic principle of soil evaporation in winter. Thus, the theoretical method was more suitable for determining the EL slope in such regions; (4) because the different fundamentals, the C-G model was positively correlated with air temperature and negatively with relative humidity ( h), while the RL model showed the opposite, indicating different applicability. Meanwhile, SEL is influenced by soil thickness, atmospheric evaporation, and soil water supply capacities. These findings support using stable isotope techniques to quantify SEL and are important for analyzing soil water resources in subtropical secondary forests.
A prospective study of the efficacy of oral propranolol in reduction of the frequency...
Grigg C
Abigail Walker

Grigg C

and 5 more

August 27, 2024
1) This pilot trial demonstrated utility of oral propranolol in management of epistaxis in HHT 2) Propranolol was effective in reducing the severity and frequency of nosebleeds in HHT, as measured by the epistaxis severity scale, and this improvement is mirrored by an improvement in global quality of life 3) Adverse effects were experienced by a minority of patients, with the most significant event being pitting oedema 4) Following cessation of treatment, patients demonstrated a trend of regression with worsening of epistaxis scores 5) Further investigation is justified by its favourable effects, wide availability, and minimal side effect profile
Off-label use of monoclonal antibodies for eosinophilic esophagitis: A systematic rev...
Benyu Yang
Wenhan Li

Benyu Yang

and 4 more

August 27, 2024
Background: Eosinophilic esophagitis (EoE) is a rare, chronic immune-mediated disorder with limited treatment options. Despite FDA approval of dupilumab for EoE, other monoclonal antibodies remain unapproved and are used off-label with limited evidence on their efficacy and safety. This systematic review rigorously and comprehensively evaluates the evidence for monoclonal antibody therapies used off-label to treat EoE. Methods: We conducted a systematic review across PubMed, EMBASE, Cochrane Central, and ClinicalTrials.gov, assessing the efficacy and safety of off-label monoclonal antibodies in EoE through clinical outcomes and FDA Adverse Event Reporting System data. Results: Among ten monoclonal antibodies reviewed, mepolizumab showed the most promise with moderate recommendation based on level 2 evidence. Others like omalizumab, dectrekumab, and reslizumab showed limited effectiveness. Safety evaluations via the FAERS database revealed significant adverse drug reactions, including serious events like asthmatic crises, pneumonia, and adrenal insufficiency for mepolizumab and reslizumab, as well as chronic obstructive pulmonary disease and gastroenteritis for omalizumab. Dectrekumab’s safety profile remains unclear due to a lack of data. Conclusions: While mepolizumab demonstrates potential as an off-label treatment, none of the antibodies reviewed have FDA approval for EoE. Ongoing research is necessary to fully establish their efficacy and safety profiles.
Characterisation and analysis of non-linear seepage in different regions of deep shal...
Li-Shi Yin
Yi-Hang Wang

Li-Shi Yin

and 6 more

August 27, 2024
To investigate the seepage characteristics of deep shale gas reservoirs, considering their complex pore and fracture networks (including both natural and artificial fractures), nonlinear seepage experiments were conducted on three rock samples. Combined with micro-nano CT technology, these experiments analyzed how changes in effective stress and production pressure differential jointly affect reservoir seepage, providing insights into seepage patterns under extraction conditions. The results indicate: (1) The seepage characteristics of the without fractures and fracture systems are consistent; permeability is inversely proportional to effective stress and directly proportional to the pressure gradient. (2) Fracture aperture and morphology significantly affect the stress sensitivity of the reservoir. Under an effective stress of 50 MPa, the permeability damage relationships are: fracture system (90%) > microfractures (70%) > natural bedding (55%). (3) The more developed the fractures, the lower the initiation pressure gradient, with the fracture system at 0.0018 MPa/m, microfractures at 0.0382 MPa/m, and natural bedding at 0.0525 MPa/m. (4) At an effective stress of 20 MPa and a pressure gradient of 1 MPa/m, the seepage capacity of the without fractures system (average 3.522×10 -4 mD) is significantly lower than that of the fracture system (0.775 mD).Under effective stress, the average pore and throat damage in the without fractures system is 19.01% and 18.32%, respectively, while in the fracture system, it is 26.27% and 23.16%. This study, through a combination of physical experiments and numerical modeling, provides experimental support for the study of seepage patterns in shale gas reservoirs.
Effective Use of ALK Inhibitors in EML4::ALK Positive Lymphatic Malformations
Beth Apsel Winger
Christopher F. Dowd

Beth Apsel Winger

and 7 more

August 27, 2024
Genetically-targeted medications are emerging as important therapies for lymphatic malformations (LMs) unresponsive to sirolimus. We describe two patients with EML4::ALK positive LMs, one with Gorham Stout Disease and one with a large genitourinary (GU) LM, who were successfully treated with ALK inhibitors. This report adds ALK inhibitors to the growing toolbox of molecularly-targeted therapies for LMs.
Sperm quality, oxidative stress and semen inflammation in HPV male urogenital infecti...
Carolina Olivera
Daniela A. Paira

Carolina Olivera

and 11 more

August 27, 2024
Human papillomavirus (HPV) is the most common sexually transmitted viral infection worldwide, which has been suggested to affect male fertility. However, reported evidence is scarce and inconclusive. Moreover, the putative effects of coinfections remain unveiled. In the present study, we analyzed male urogenital infection by HPV and coinfection with several other uropathogens, sperm quality and biomarkers of semen inflammation in a cohort of 205 men attending a urology clinic. A considerable prevalence (19%) of HPV male urogenital infection was found. Interestingly, HPV was detected coinfecting with at least one other uropathogen in most cases (74.4%). Notably, the most frequently detected coinfection was C. trachomatis (CT, 52% of cases). Remarkably, patients solely infected with HPV showed no significant alterations in conventional sperm parameters as well as reduced concentrations of IL-6 and leukocytes in semen. However, patients coinfected with HPV and CT showed significantly impaired sperm concentration and motility and increased levels of IL-6 in semen. These results indicate that HPV infection alone does not significantly alter sperm quality. However, the coinfection with CT decreases sperm quality and induces semen inflammation, suggesting that concurrent HPV and CT infection in semen represents a distinct clinical entity with particular characteristics.
Harnessing Free Space Optics for Efficient 6G Fronthaul Networks: Challenges and Oppo...
Abdulhalim Fayad
István Pelle

Abdulhalim Fayad

and 3 more

August 27, 2024
As standardization work is ongoing for the upcoming generation of cellular networking (6G), exploring new technologies for low-latency, high-bandwidth fronthauling technologies becomes a crucial aspect for the overall system performance. Free Space Optics (FSO) has emerged as a light beam-based wireless communication technology that can be fulfill such requirements with the possibility of surpassing certain radio technologies. Consequently, in this paper, we investigate the possibility of employing FSO as a feasible solution for 6G fronthaul networks because of its promising characteristics in providing high bandwidth, low latency, and high flexibility. We review the main features of FSO and its primary use-cases in the 6G fronthaul. Building on these, we highlight the challenges that face the implementation of FSO in a 6G fronthaul environment, such as the influence of atmospheric conditions on signal dependability. In the form of recent solutions and techniques, we enlist possibilities to overcome these challenges. Furthermore, we outline potential future research directions including network slicing and resource allocation strategies for FSO-based 6G fronthaul networks to offer a complete picture. This way our comprehensive analysis aims to provide valuable insights into the prospects of employing FSO in the development of robust and efficient 6G fronthaul networks.
Utility of Respiratory Pathogen Panel in Pediatric Oncology Patients with Febrile Neu...
Farrah Gaston
Alexander Tran

Farrah Gaston

and 4 more

August 27, 2024
Background Infection is a major cause of morbidity and mortality in pediatric oncology patients, particularly during periods of neutropenia. While bacterial infections are traditionally considered the most common cause of febrile neutropenia, the increasing use of respiratory pathogen panels (RPPs) for viral detection may challenge this view. Methods A retrospective cohort study was conducted on pediatric oncology patients admitted for febrile neutropenia between 2010 and 2022 at a medium-sized academic center. An RPP was performed on nasal swabs from 196 patients at admission and analyzed using molecular-based polymerase chain reaction. Results were available within 12 hours. Pathogens included in the assay were common respiratory viruses and atypical bacteria. Comparison of the duration of neutropenia, duration of fever, and length of stay was made between patients who had a positive respiratory panel and those who did not, as well as each individual pathogen. Additionally, the frequency of viruses before and after the COVID-19 pandemic was analyzed. Results Viral infections were more common than bacterial infections in this cohort. The effect of the RPP on the length of stay was not statistically significant. Parainfluenza viruses were associated with a longer duration of neutropenia, duration of fever, and length of stay. Logistic regression analysis revealed that community coronaviruses, bacterial infections, and a diagnosis of leukemia also impacted these variables. Conclusions Utilization of RPPs may be useful in the workup of febrile neutropenia by providing data for risk evaluation, predicting clinical outcomes, detecting viruses to implement barrier precautions early, and potentially adjusting antimicrobial usage.
The feasibility and safety of pulsed field ablation for persistent atrial fibrillatio...
Guocai Chen
Mingyang Gao

Guocai Chen

and 14 more

August 27, 2024
Introduction: Pulsed field ablation (PFA) is a novel nonthermal ablation approach using rapid electrical pulses to cause cardiac cell apoptosis via electroporation. Our study aims to investigate the feasibility and safety of PFA for persistent atrial fibrillation (PeAF). Methods: 32 consecutive patients diagnosed with PeAF were enrolled in our study. All patients underwent PFA treatment using the strategy including pulmonary vein isolation (PVI), left atrial posterior wall (LAPW) isolation, cavotricuspid isthmus (CTI) block, and mitral isthmus (MI) block. Acute and follow-up procedure outcomes were evaluated, and adverse events related to the ablation procedure were also observed. Results: One-year survival free from atrial tachyarrhythmia post-ablation was 65.6%. Acute success rates for PVI, LAPW isolation, CTI block, and MI block were 100%, 100%, 96.9%, and 81.3%, respectively. Eleven cases (34.4%) experienced atrial tachyarrhythmia recurrence, with 8 cases being atrial fibrillation recurrence and 3 cases being atrial flutter recurrence. Three patients underwent repeat ablation. Minor complications were encountered in 4 patients with asymptomatic cerebral lesions. Vagal responses were commonly observed during the procedure. No severe coronary vasospasm or severe haemolysis occurred in our cohort. Conclusion: PFA with the strategy including PVI, LAPW isolation, CTI block, and MI block is feasible, safe, and associated with a high rate of freedom from atrial tachyarrhythmia recurrence at 1 year in patients with PeAF.
Long-term monitoring of patients with persistent atrial fibrillation after pulsed fie...
Wentao Li
Xianjin Hu

Wentao Li

and 16 more

August 27, 2024
Introduction: Most studies have followed patients with persistent atrial fibrillation (PeAF) using 12-lead or 24-hour Holter electrocardiography, but this may overestimate the effectiveness of pulsed field ablation (PFA) in the treatment of PeAF. This study aimed to investigate the feasibility of PFA in patients with PeAF and follow-up using insertable cardiac monitoring (ICM) that can provide information on the actual status of atrial arrhythmia (AA) recurrence and AA duration after PFA. Methods and Results: We prospectively enrolled 49 patients with PeAF who underwent PFA strategy comprising superior vena cava isolation, pulmonary vein isolation, and posterior wall box isolation between December 2022 and January 2024. Acute electrical isolation rate was 100%. After median follow-up of 12.1 months, 29 patients (59.18%) had zero AA burden. Kaplan–Meier analysis show that the freedom from recurrence increased with arrhythmia duration thresholds, from 63.27% to 83.67% (duration >48 h vs. duration <2 min, P=0.040). Quality of life scores were significantly improved after PFA (6 months to baseline, P<0.001). Regression analysis revealed that larger low voltage areas in left atrium were associated with increased risk of AA recurrence (P= 0.046). Safety events occurred in two patients (one transient ischemic attack and one pseudoaneurysm). Conclusion: PFA is an effective modality for the treatment of patients with PeAF. With different arrhythmia duration thresholds, the rate of freedom from AA is quite different.
Simvastatin competitively inhibits cellular signalling of lipid-binding antiphospholi...
Dominika Marova
Anne Hollerbach

Dominika Marova

and 5 more

August 27, 2024
Background and Purpose. Antiphospholipid antibodies (aPL) cause antiphospholipid syndrome (APS), a disease characterized by thrombotic events and/or pregnancy morbidity. Some clinical studies suggest that statins may beneficially affect the course of APS. In this study, we studied the effect of statins on aPL-induced monocyte activation, aPL-triggered tissue factor (TF) activation and the underlying cellular mechanisms. Experimental Approach. Cultured monocytes were treated with human monoclonal lipid-binding aPL with or without statins. Expression of TF and TNFα mRNA was measured by real-time quantitative PCR. TF activity was determined using clotting assay. The effects of statins on the binding and internalization of aPL were determined by confocal microscopy and flow cytometry. Key Results. Simvastatin completely inhibited the induction of TNFα and TF mRNA by human monoclonal lipid-binding aPL. Simvastatin also prevented TF activation by aPL on the cell surface. These effects were not mediated by HMGCoA-reductase-inhibition but simvastatin and other statins prevented lipid-binding aPL from binding to their cell surface target, i.e. lysobisphosphatidic acid (LBPA) presented by the endothelial protein C-receptor (EPCR) by displacement of LBPA. Subsequently, aPL could not induce any cellular downstream effects. Conclusion and Implications. Our data show that statins prevent monocyte activation and TF-triggered coagulation by lipid-binding aPL by interfering with binding of aPL to the EPCR/LBPA on the cell surface of monocytes. We assume, that statins displace LBPA from the hydrophobic groove of EPCR. These findings may help to understand the observed beneficial effects of statins in APS.
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