bluuebunny/crossref_metadata_2025_split huggingface dataset:
Net carbon sequestration implications of intensified timber harvest in Northeastern U.S. forests
Authors: Brown Michelle L. , Canham Charles D. , Buchholz Thomas , Gunn John S. , Donovan Therese M. 
Published: February 2024

AbstractU.S. forests, particularly in the eastern states, provide an important offset to greenhouse gas (GHG) emissions. Some have proposed that forest‐based natural climate solutions can be strengthened via a number of strategies, including increases in the production of forest biomass energy. We used output from a forest dynamics model (SORTIE‐ND) in combination with a GHG accounting tool (ForGATE) to estimate the carbon consequences of current and intensified timber harvest regimes in the Northeastern United States. We considered a range of carbon pools including forest ecosystem pools, forest product pools, and waste pools, along with different scenarios of feedstock production for biomass energy. The business‐as‐usual (BAU) scenario, which represents current harvest practices derived from the analysis of U.S. Forest Service Forest Inventory and Analysis data, sequestered more net CO2 equivalents than any of the intensified harvest and feedstock utilization scenarios over the next decade, the most important time period for combatting climate change. Increasing the intensity of timber harvest increased total emissions and reduced landscape average forest carbon stocks, resulting in reduced net carbon sequestration relative to current harvest regimes. Net carbon sequestration “parity points,” where the regional cumulative net carbon sequestration from alternate intensified harvest scenarios converge with and then exceed the BAU baseline, ranged from 12 to 40 years. A “no harvest” scenario provides an estimate of an upper bound on forest carbon sequestration in the region given the expected successional dynamics of the region's forests but ignores leakage. Regional net carbon sequestration is primarily influenced by (1) the harvest regime and amount of forest biomass removal, (2) the degree to which bioenergy displaces fossil fuel use, and (3) the proportion of biomass diverted to energy feedstocks versus wood products.
Takotsubo syndrome and vaccines: a systematic review
Authors: Li Chenlin , Li Pengyang , Peddibhotla Bharath , Teng Catherine , Shi Ao , Lu Xiaojia , Cai Peng , Dai Qiying , Wang Bin 
Published: February 2024

AbstractAimsTakotsubo syndrome (TTS) is a rare complication of vaccination. In this study, we sought to provide insight into the characteristics of reported TTS induced by vaccination.Methods and resultsWe did a systematic review, searching PubMed, Embase, Web of Science, Ovid MEDLINE, Journals@Ovid, and Scopus databases up to 26 April 2023 to identify case reports or case series of vaccine‐induced TTS. We then extracted and summarized the data from these reports. Eighteen reports were identified, with a total of 19 patients with TTS associated with vaccinations. Of the 19 included patients, the majority were female (n = 13, 68.4%) with a mean age of 56.6 ± 21.9 years. Seventeen patients developed TTS after coronavirus disease 2019 vaccination, 14 of whom received an mRNA vaccination. Two cases of TTS occurred after influenza vaccination. Among the 19 patients, 17 (89.5%) completed transthoracic echocardiography and 16 (84.2%) underwent angiography procedures. Seven patients (36.8%) completed cardiac magnetic resonance imaging. The median time to symptom onset was 2 (inter‐quartile range, 1–4) days. The most common symptoms were chest pain (68.4%), dyspnoea (57.9%), and digestive symptoms (31.6%). A total of 57.9% of patients developed nonspecific symptoms such as fatigue, myalgia, diaphoresis, and fever. Among the 16 reported cases of TTS, 15 patients (93.8%) exhibited elevated cardiac troponin levels, while among the nine reported cases, eight patients (88.9%) had elevated natriuretic peptide levels. All patients had electrocardiographic changes: ST‐segment change (47.1%), T‐wave inversion (58.8%), and prolonged corrected QT interval (35.3%). The most common TTS type was apical ballooning (88.2%). Treatment during hospitalization typically included beta‐blockers (44.4%), angiotensin‐converting enzyme inhibitors/angiotensin receptor blockers (33.3%), and diuretics (22.2%). After treatment, 81.3% of patients were discharged with improved symptoms. Among this group, nine patients (56.3%) were reported to have recovered ventricular wall motion during follow‐up. Two patients (12.5%) died following vaccination without resuscitation attempts.ConclusionsTTS is a rare but potentially life‐threatening complication of vaccination. Typical TTS symptoms such as chest pain and dyspnoea should be considered alarming symptoms, though nonspecific symptoms are common. The risks of such rare adverse events should be balanced against the risks of infection.
Covalent Organic Frameworks as a Versatile Platform for Iron‐Catalyzed sp3 C−H Activation and Cross‐Coupling via Decarboxylative Oxidation
Authors: Cifuentes Jhonny M. C. , Henrique Fábio J. F. S. , Ligiéro Carolina B. P. , Esteves Pierre M. , Buarque Camilla D. 
Published: February 2024

AbstractThis work demonstrates the oxidative cross‐coupling of cinnamic acids with toluene using FeCl3 immobilized on a covalent organic framework (COF) pore wall, resulting in the synthesis of 1,3‐arylpropene derivatives. This iron‐based heterogeneous catalytic system affords the desired products in moderate yields ranging from 51 % to 65 %. Investigations using COFs with varying pore sizes indicate that larger pores facilitate the reaction, suggesting a spatial requirement for this transformation within the catalyst. The correlation between pore size and reaction efficiency provides insights into developing tailored catalysts to match the spatial requirements of the transformation. This version emphasizes the novelty of the study and the synthesis of 1,3‐arylpropene derivatives. It also clarifies that the iron‐based heterogeneous catalytic system is responsible for the reaction. Additionally, it provides a more detailed explanation of the findings regarding pore size and spatial requirements.
Monocopper model of CuB site of pMMO in N4‐environment oxidizes C−H bonds
Authors: Hernández‐Toledo Hugo C. , Flores‐Alamo Marcos , Castillo Ivan 
Published: February 2024

AbstractDiscrepancies regarding the coordination environment, donor atoms, nuclearity, and oxidation state of the active site of particulate methane monooxygenase (pMMO), a copper‐dependent enzyme capable of activating the strong C−H bond of methane, persist despite numerous structural and spectroscopic studies. To address the proposed mono‐ (CuII) or bimetallic (2CuI) nature of the so‐called CuB site, we report the bis(benzimidazole)‐based NMe−N,N’‐(1‐Me‐2‐CH2C7H4N2)2C6H4 ligand (N4) and its copper complexes. In the solid state [Cu(N4)(ClO4)]ClO4 features tetragonal geometry defined by the chelating ligand and an axial perchlorate; geometric and EPR parameters are very close to those reported for the CuB site. Attempts to obtain a dicopper(I) analog resulted in [Cu(N4)][CuCl2], based on spectroscopic, electrochemical, and ESI‐MS data. Although these results support the assignment of CuB as a monometallic site, air exposure of [Cu(N4)][CuCl2] leads to ligand oxidation in the structurally characterized [Cu(N4=O)Cl], raising the possibility of distorted tetragonal Cu(I) centers activating O2 and oxidizing substrates, in C−H activation chemistry that may take place at CuB.
Library Synthesis of Cyclobutanol Derivatives by Hyperbaric [2+2] Cycloaddition Reactions
Authors: Janssen Mathilde A. C. H. , Rappard Rico , van Well Michiel J. , Blanco‐Ania Daniel , Rutjes Floris P. J. T. 
Published: February 2024

AbstractCyclobutanes are attracting a growing interest in medicinal chemistry because of their unique structure and potentially advantageous pharmacological properties. Specifically, 1,3‐disubstituted cyclobutanes have been explored as conformationally restricted propyl isosteres in drug development. In this study, a concise two‐diversification‐point library of 3‐amino‐3‐[(arenesulfonyl)methyl]cyclobutanols was synthesized through a hyperbaric [2+2] cycloaddition reaction between sulfonyl allenes and benzyl vinyl ether as the key step. Three different sulfonyl allenes were used for synthesizing the core structures that were further derivatized by the addition of up to seven amines. The amino groups were incorporated in a moderate to excellent diastereoselectivity through conjugate addition to the four‐membered‐ring scaffolds. Overall, this synthesis process demonstrates the potential for further chemical expansion and fragment growth in drug development.
‘‘The past is rich in glory and knowledge’’—The intersection of indigenous evaluation and culturally responsive evaluation
Authors: Cram Fiona , LaFrance Joan , Tibbetts Katherine A. 
Published: February 2024

AbstractIn this article, each author describes the development of what we loosely refer to as Indigenous Evaluation (IE) within our homeplace, and how IE has contributed to and benefited from connecting with the larger stream of Culturally Responsive Evaluation (CRE). Like IE, CRE frames evaluation through a lens that privileges the worldviews of those who are minoritized and marginalized, and names and challenges the societal barriers to Indigenous wellbeing. For many Indigenous peoples, these societal barriers can be traced back to the legacies of colonization, including the theft of Indigenous territories and the disconnection of Indigenous children from their peoples and their traditions. The resulting burden of intergenerational trauma shouldered by Indigenous peoples therefore requires IE and CRE to be in service of the sovereignty, vitality, and prosperity of Indigenous peoples. This is the future our ancestors wanted for us, and what we desire for generations yet to come.
Latine evaluators and evaluation: Advancing representation and collective agency
Authors: Neubauer Leah C. , Aponte‐Soto Lisa , Guerrero Andrea 
Published: February 2024

AbstractThis article details how connection to the late Dr. Stafford Hood, Culturally Responsive Evaluation (CRE) and Culturally Responsive Evaluation and Assessment (CREA) provided conceptual, methodological, and affirming foundations of our collective work as Latina evaluators, knowledge co‐creators, and mobilizers. The introduction of CRE & CREA with strategic sponsorship provided by Dr. Hood are key historic moments in the legitimization and advancement of Latine evaluators within and across the American Evaluation Association (AEA) and CREA. The co‐authors, who are multiethnic and multicultural Latinas, consider LatCrit theory, collective agency, and legitimacy in relation to key moments in the evolution of Latine evaluation discourse over the last decade.
Lymph node yield: Impact on oncologic outcomes in oral cavity cancer
Authors: Khalil Carlos , Khoury Mark , Higgins Kevin , Enepekides Danny , Karam Irene , Husain Zain Ali , Bayley Andrew , Poon Ian , Truong Tra , Chan Kelvin K. W. , Smoragiewicz Martin , Fu Rui , Eskander Antoine 
Published: February 2024

AbstractBackgroundLymph node metastases are associated with poor prognosis in oral cavity squamous cell carcinoma (OCSCC). In other cancers, clinical guidelines on the number of lymph nodes removed during primary surgery, lymph node yield (LNY), exist. Here, we evaluated the prognostic capacity of LNY on regional failure, locoregional recurrence, and disease‐free survival (DFS) in patients with OCSCC treated by primary neck surgery.MethodsThis retrospective cohort study took place at Sunnybrook Health Sciences Centre in Toronto, Canada and involved a chart review of all adult patients with treatment‐naive OCSCC undergoing primary neck dissection. For each outcome, we first used the maximally selected rank statistics and an optimism‐corrected concordance to identify an optimal threshold of LNY. We then used a multivariable Cox proportional hazards model to assess the association between high LNY (>threshold) and each outcome.ResultsAmong the 579 patients with OCSCC receiving primary neck dissection, 61.7% (n = 357) were male with a mean age of 62.9 years (standard deviation: 13.1) at cancer diagnosis. When adjusting for sociodemographic and clinical factors, LNY >15 was significantly associated with improved DFS (adjusted HR [aHR]: 0.73, 95% CI: 0.54–0.98), locoregional recurrence (aHR: 0.68, 95% CI: 0.49–0.95), and regional failure (aHR: 0.61, 95% CI: 0.39–0.93).ConclusionsOur study findings suggested high LNY to be a strong independent predictor of various patient‐level quality of surgical care metrics. The optimal LNY we found (15) was lower than the conventionally recommended (18), which calls for further research to establish validity in practice.
Neutrophil‐to‐lymphocyte ratio associates with nutritional parameters, intratumoral immune profiles, and clinical outcomes of pembrolizumab in head and neck squamous cell carcinoma
Authors: Morimoto Hiroki , Tsujikawa Takahiro , Miyagawa‐Hayashino Aya , Kimura Alisa , Saburi Sumiyo , Murakami Nanako , Kitamoto Kayo , Mukudai Shigeyuki , Nagao Hikaru , Saya Shibata , Ogi Hiroshi , Konishi Eiichi , Itoh Kyoko , Hirano Shigeru 
Published: February 2024

AbstractBackgroundThe relationship between the tumor‐immune microenvironment and systemic inflammatory markers, including neutrophil‐to‐lymphocyte ratio (NLR), is unclear.MethodsWe examined the characteristics of systemic inflammatory markers and tumor immune microenvironments in relation to treatment outcomes in 29 consecutive patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC) who received pembrolizumab, using 14‐marker multiplex immunohistochemistry and image cytometry.ResultsNLR ≥4.5 (high NLR) at pretreatment status significantly correlated with short overall survival (OS) and progression‐free survival‐2 (PFS2) and malnutrition status. High NLR in peripheral blood was significantly correlated with low lymphoid cell and high tumor‐associated macrophage counts in tissues, especially myeloid‐to‐lymphoid cell ratios, suggesting an association between circulating and intratumoral immune complexity profiles.ConclusionsThis study suggests a link between NLR in circulating blood, systemic nutritional status, and immune composition within the tumor.
Recent Advance in the Study on 5‐Formylcytosine (f5C) RNA Modification
Authors: Wang Xin , Jin Xiao‐Yang , Cheng Liang 
Published: February 2024

AbstractThe widespread involvement of 5‐formylcytosine f5C RNA in gene function regulation and its impact on crucial life processes like cell differentiation, embryonic development, and disease development underscores the significance of detecting this specific base modification. This detection holds great importance for basic epigenetics research and the early diagnosis and pathogenesis research of various diseases. This review aims to summarize recent research progress in f5C detection methods using selective chemical labeling, with the hope of aiding future research endeavors.
Healing of Erosive Esophagitis and Improvement of Symptoms of Gastroesophageal Reflux Disease After Esomeprazole Treatment in Children 12 to 36 Months Old
Authors: Tolia Vasundkara , Gilger Mark A. , Barker Peter N. , Illueca Marta 
Published: February 2024

ABSTRACTObjectives:The aim of the study was to evaluate erosive esophagitis healing and symptom improvement with once‐daily esomeprazole in children ages 12 to 36 months with endoscopically or histologically proven gastroesophageal reflux disease (GERD).Patients and Methods:Data from children ages 12 to 36 months were included in a post‐hoc analysis of an 8‐week, multicenter, randomized, and double‐blind by dose strata study of patients ages 1 to 11 years with endoscopically or histologically confirmed GERD. Children were randomized to receive esomeprazole 5 or 10 mg once daily. Patients underwent endoscopy and, if required, mucosal biopsy at baseline. Patients who had erosive esophagitis (graded using the Los Angeles classification system) at baseline underwent a follow‐up endoscopy at final study visit to assess healing of erosive esophagitis. Investigators scored severity of GERD symptoms at baseline and every 2 weeks using the Physician Global Assessment.Results:Thirty‐one of 109 primary study patients ages 12 to 36 months were included in the post hoc analysis. At baseline, 15 patients (48.4%) had erosive esophagitis, underwent follow‐up endoscopy, and were healed after 8 weeks of esomeprazole treatment. Of the 19 patients with moderate‐to‐severe baseline Physician Global Assessment symptom scores, 84.2% had lower scores by the final visit. Following esomeprazole treatment, GERD symptoms were significantly improved from baseline to final visit (P ≤ 0.0018).Conclusions:Esomeprazole 5 or 10 mg may be used to successfully treat erosive esophagitis and symptoms of GERD in children as young as 1 year.Moreover, although not yet validated in pediatric patients, the Los Angeles classification system was useful in grading erosive esophagitis in children ages 12 to 36 months.
Degrees of macrophage‐facilitated healing in aneurysm occlusion devices
Authors: Donehoo Del A. , Collier Claudia A. , VandenHeuvel Sabrina N. , Roy Sanjana , Solberg Spencer C. , Raghavan Shreya A. 
Published: February 2024

AbstractInsufficient healing of aneurysms following treatment with vascular occlusion devices put patients at severe risk of fatal rupture. Therefore, promoting healing and not just occlusion is vital to enhance aneurysm healing. Following occlusion device implantation, healing is primarily orchestrated by macrophage immune cells, ending with fibroblasts depositing collagen to stabilize the aneurysm neck and dome, preventing rupture. Several modified occlusion devices are available currently on‐market. Previous in vivo work demonstrated that modifications of occlusion devices with a shape memory polymer foam had enhanced aneurysm healing outcomes. To better understand cellular response to occlusion devices and improve aneurysm occlusion device design variables, we developed an in vitro assay to isolate prominent interactions between devices and key healing players: macrophages and fibroblasts. We used THP‐1 monocyte derived macrophages and human dermal fibroblasts in our cell culture models. Macrophages were allowed device contact with on‐market competitor aneurysm occlusion devices for up to 96 h, to allow for any spontaneous device‐driven macrophage activation. Macrophage secreted factors were captured in the culture media, in response to device‐specific activation. Fibroblasts were then exposed to device‐conditioned macrophage media (with secreted factors alone), to determine if there were any device‐induced changes in collagen secretion. Our in vitro studies were designed to test the direct effect of devices on macrophage activation, and the indirect effect of devices on collagen secretion by fibroblasts to promote aneurysm healing and stabilization. Over 96 h, macrophages displayed significant migration toward and interaction with all tested devices. As compared to other devices, shape memory polymer foams (SMM, Shape Memory Medical) induced significant changes in gene expression indicating a shift toward an anti‐inflammatory pro‐healing M2‐like phenotype. Similarly, macrophages in contact with SMM devices secreted more vascular endothelial growth factor (VEGF) compared with other devices. Macrophage conditioned media from SMM‐contacted macrophages actively promoted fibroblast secretion of collagen, comparable to amounts observed with exogenous stimulation via VEGF supplementation. Our data indicate that SMM devices may promote good aneurysm healing outcomes, because collagen production is an essential step to ultimately stabilize an aneurysm.
Mechanotransduction and epigenetic modulations of chromatin: Role of mechanical signals in gene regulation
Authors: Mishra Jagdish , Chakraborty Subhajit , Niharika  , Roy Ankan , Manna Soumen , Baral Tirthankar , Nandi Piyasa , Patra Samir K. 
Published: February 2024

AbstractMechanical forces may be generated within a cell due to tissue stiffness, cytoskeletal reorganization, and the changes (even subtle) in the cell's physical surroundings. These changes of forces impose a mechanical tension within the intracellular protein network (both cytosolic and nuclear). Mechanical tension could be released by a series of protein–protein interactions often facilitated by membrane lipids, lectins and sugar molecules and thus generate a type of signal to drive cellular processes, including cell differentiation, polarity, growth, adhesion, movement, and survival. Recent experimental data have accentuated the molecular mechanism of this mechanical signal transduction pathway, dubbed mechanotransduction. Mechanosensitive proteins in the cell's plasma membrane discern the physical forces and channel the information to the cell interior. Cells respond to the message by altering their cytoskeletal arrangement and directly transmitting the signal to the nucleus through the connection of the cytoskeleton and nucleoskeleton before the information despatched to the nucleus by biochemical signaling pathways. Nuclear transmission of the force leads to the activation of chromatin modifiers and modulation of the epigenetic landscape, inducing chromatin reorganization and gene expression regulation; by the time chemical messengers (transcription factors) arrive into the nucleus. While significant research has been done on the role of mechanotransduction in tumor development and cancer progression/metastasis, the mechanistic basis of force‐activated carcinogenesis is still enigmatic. Here, in this review, we have discussed the various cues and molecular connections to better comprehend the cellular mechanotransduction pathway, and we also explored the detailed role of some of the multiple players (proteins and macromolecular complexes) involved in mechanotransduction. Thus, we have described an avenue: how mechanical stress directs the epigenetic modifiers to modulate the epigenome of the cells and how aberrant stress leads to the cancer phenotype.
FFLUX molecular simulations driven by atomic Gaussian process regression models
Authors: Manchev Yulian T. , Popelier Paul L. A. 
Published: February 2024

AbstractMachine learning (ML) force fields are revolutionizing molecular dynamics (MD) simulations as they bypass the computational cost associated with ab initio methods but do not sacrifice accuracy in the process. In this work, the GPyTorch library is used to create Gaussian process regression (GPR) models that are interfaced with the next‐generation ML force field FFLUX. These models predict atomic properties of different molecular configurations that appear in a progressing MD simulation. An improved kernel function is utilized to correctly capture the periodicity of the input descriptors. The first FFLUX molecular simulations of ammonia, methanol, and malondialdehyde with the updated kernel are performed. Geometry optimizations with the GPR models result in highly accurate final structures with a maximum root‐mean‐squared deviation of 0.064 Å and sub‐kJ mol−1 total energy predictions. Additionally, the models are tested in 298 K MD simulations with FFLUX to benchmark for robustness. The resulting energy and force predictions throughout the simulation are in excellent agreement with ab initio data for ammonia and methanol but decrease in quality for malondialdehyde due to the increased system complexity. GPR model improvements are discussed, which will ensure the future scalability to larger systems.