bluuebunny/crossref_metadata_2025_split huggingface dataset:
TLR4 knock out alleviate both lung and liver inflammation caused by short-time exposure to PM2.5
Authors: Jiang Bijie , Lu Jianguo , Liu Yang , Li Congmin , An Zhen , Bai Yichun , Zheng Xinmei , Wu Weidong 
Published: April 2021

Abstract
Background: Ambient particulate matter (PM), a principal component of air pollutant, is harmful to human health in many ways. Toll-like receptors (TLRs) are non-catalytic transmembrane protein that can identify conservative molecules from microorganisms. However, the regulatory mechanism of TLR4 and its effects on lung and liver inflammation induced by PM are unknown presently. Method: Wild type mice and TLR4-/- mice (C57BL/10JNju, mixed gender, 8-10 weeks old,), both were randomly divided into two groups. The mice were intratracheally instilled with saline or PM2.5 (4 mg/kg) every other day and continued for 10 days. Result: PM2.5 increased the BCA and Lactate Dehydrogenase (LDH) level and TLR4 KO mice showed lower BCA compared to wild type mice(P=0.08). PM2.5 treatment increased the expression of inflammatory cytokines (HMGB1, TNFα, MCP-1/CCL2, CCR2) significantly compared to the saline treatment (P<0.05) and there is a trend that this could be attenuated in TLR4 knock out mice. HE staining showed that PM2.5 induced severe inflammatory damage, and TLR4 KO could alleviate the process of inflammation. As to the liver, LDH and Alkaline Phosphatase (AKP) significantly increased in PM2.5 treatment only in wild type mice. Similar to the lung tissue, PM2.5 stimulation resulted in robust induction of proinflammatory genes expression levels, and TLR4 KO could alleviate the progression of liver inflammation. Conclusion: Our findings suggest that, TLR4 plays an important role in regulating lung and liver inﬂammatory response caused by PM2.5.
Observations on the Use of Different Modes of Cisatracurium Administration in Hyperthermic Intraperitoneal Chemotherapy
Authors: Zhang Jing , Gao Danyang , Liu Pengfei , Li Tianzuo 
Published: April 2021

Abstract
Objective: To investigate the residual effects of cis-atracurium with different administrations in patients with hyperthermic intraperitoneal chemotherapy.Methods: 60 patients undergoing hyperthermic intraperitoneal chemotherapy were randomly divided into two groups with 30 cases in each group. All patients were induced with sufentanil 0.4ug/kg, propofol 2.0mg/kg and cis atracurium 0.2mg/kg. During the operation, sevoflurane and remifentanil were used to maintain anesthesia. BIS value was 45-55. The control group intermittently received cis-atracurium injection with 0.1mg/kg/h. The experimental group received continuous injection of cis-atracurium at a rate of 1.5ug/kg/min. Cis-atracurium was discontinued 30min before the end of the operation, sevoflurane inhalation was stopped 20min before the end of the surgery and remifentanil was discontinued 10min before the end. At the end of the operation, no muscle relaxant antagonism were applied. General information of patients was recorded. Mean arterial pressure (MAP), heart rate (HR), tidal volume (VT), respiratory rate (F), and blood oxygen saturation (SpO2) were recorded before anesthesia (T1) , at the time of tracheal catheter extraction (T2).Besides, the total amount of cis-atracurium, the time of recovery of spontaneous tidal volume to 6ml/kg (t1), the time of continuous lifting of the head for 5 s (t2), and the time from the withdrawal of muscle relaxant to the removal of the tracheal catheter (t3) were recorded. Blood gas analysis was also performed to record PaO2 and PaCO2 before anesthesia, when leaving the operating room and SICU. Moreover, relevant adverse reactions were recorded.Results: 1) general situation: there was no difference in body weight, operation time, ASA classification and other indicators between the two groups (P>0.05). 2) comparison of residual effects of muscle relaxants: the values of t1, t2 and t3 in the experimental group were significantly shorter than those in the control group (P<0.05). There was no significant difference between the two groups in PaO2 and PaCO2 before anaesthesia, when out of the operating room and when out of SICU (P>0.05). 3) hemodynamic comparison: there were no statistically significant differences in mean arterial pressure, heart rate, tidal volume, respiratory rate and blood oxygen saturation between the two groups at time points T1 and T2 (P>0.05). 4) comparison of adverse events: no adverse events occurred in either group.Conclusion: Compared with intermittent infusion, continuous infusion of cis-atracurium did not result in significant residual muscle relaxation and no significant histamine release. Therefore, continuous infusion is more suitable for long-term surgery.
Impaired Mitochondrial functions and Energy Metabolism in MPTP-induced Model of Parkinson’s Disease in Mice: Comparison of Strains and Dose Regimens
Authors: Pathania Anjana , Garg Priyanka , Sandhir Rajat 
Published: April 2021

Abstract
Parkinson’s disease is a multiplexed disease involving diverse symptoms and progression rate. Heterogenous diseases need an efficient animal model to enhance the understanding of the underlying mechanism. MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine), a neurotoxin, has been widely used to replicate the pathophysiology of PD in rodents, but its effect on energy metabolic perturbation is limited. Moreover, susceptibility to different dosage regime of MPTP varies among mice strains. Thus, herein the present study compares the effect of acute and sub-acute MPTP dosage regimes on mitochondrial functions in terms of mitochondrial respiratory chain enzymes, mitochondrial swelling and membrane potential in C57BL/6 and Balb/c mice. In addition, activities of enzymes involved in energy metabolic pathways were also studied along with behaviour and neurochemical alterations. The results showed that acute dose of MPTP in C57BL/6 mice had more profound effect on the enzyme activities of electron transport chain complexes. Further, the activity of MAO-A and MAO-B was increased following acute and sub-acute MPTP administration in C57BL/6 mice. However, no significant change was observed in Balb/c strain. Acute MPTP treatment resulted in decreased mitochondrial membrane potential along with swelling of mitochondria in C57BL/6 mice. In addition, perturbations were observed in hexokinase and pyruvate dehydrogenase of glycolysis pathway and citrate synthase, aconitase, isocitrate dehydrogenase and fumarase of TCA cycle. Moreover, acute MPTP led to pronounced depletion in neostriatal dopamine levels in C57BL/6 than in Balb/c mice. Behavioral tests such as open field, Narrow beam walk test and footprint test showed that locomotor activity was drastically reduced as an acute effect of MPTP in C57BL/6 mice strain. Therefore, these results consistently showed that acute MPTP treatment in C57BL/6 strain had severe mitochondrial dysfunctions, perturbed energy metabolic pathways, altered neurotransmission and motor defects as compared to Balb/c strain. Thus, the findings suggest that the dose and strain of mice need to consider for pre-clinical studies targeting mitochondrial dysfunctions in MPTP-induced Parkinson’s disease model.
Child self-report and child-parent agreement regarding health-related quality of life under COVID-19 lockdown in the French Grand Est area
Authors: Bourion-Bedes Stephanie , Rousseau Hélène , Batt Martine , Tarquinio Pascale , Lebreuilly Romain , Sorsana Christine , Legrand Karine , Tarquinio Cyril , Baumann Cedric 
Published: April 2021

Abstract
Purpose: Billions of children worldwide were sent under lockdown due to the coronavirus disease. This study aimed to investigate child-reported and parent-rated health-related quality of life among 8- to 18-year-olds and the agreement between the children’s assessments and those of their parents during lockdown.Methods: A cross-sectional study was conducted among French children living in the Grand Est area. An online survey was used to collect data on the children’s sociodemographics, living environments, education and HRQoL. The latter was assessed with KIDSCREEN-27, which consists of five domains. Sex and age differences in parent ratings and child-reported data were analyzed using Kruskal-Wallis tests. Child-parent agreement was analyzed using the intraclass correlation coefficient (ICC).Results: In total, 471 child-parent pairs from 341 households were included. Compared to European norms, children scored lower on all dimensions during the first lockdown: physical well-being (45.9/49.94 EU), psychological well-being (48.8/49.77 EU), parent relations and autonomy (47.7/49.99 EU), social support and peers (36.4/49.94) and school (48.2/50). Significant child-reported sex and age differences were identified for both psychological and physical well-being dimensions. Moderate to good agreement existed between children’s and parents’ ratings on all KIDSCREEN dimensions (ICC ranged from 0.60 to 0.76).Conclusion: The study suggests the need to focus on children’s social support and peers during epidemics and to consider the children’s self-reported HRQoL. Additional research should be conducted to identify ways of minimizing the gap between mental health needs and the services available and to help more children maintain their physical and mental health during the current crisis.
Detecting and Learning from Unknown by Extremely Weak Supervision: eXploratory Classifier (xClass)
Authors: Angelov Plamen , Soares Eduardo 
Published: April 2021

Abstract
In this paper, we break with the traditional approach to classification, which is regarded as a form of supervised learning. We offer a method and algorithm, which make possible fully autonomous (unsupervised) detection of new classes, and learning following a very parsimonious training priming (few labeled data samples only). Moreover, new unknown classes may appear at a later stage and the proposed xClass method and algorithm are able to successfully discover this and learn from the data autonomously. Furthermore, the features (inputs to the classifier) are automatically sub-selected by the algorithm based on the accumulated data density per feature per class. In addition, the automatically generated model is easy to interpret, is locally generative and based on prototypes which define the modes of the data distribution. As a result, a highly efficient, lean, human-understandable, autonomously self-learning model (which only needs an extremely parsimonious priming) emerges from the data. To validate our proposal we approbated it on four challenging problems, including imbalanced Faces-1999 data base, Caltech-101 data set, vehicles dataset, and iRoads dataset, which is a dataset of images of autonomous driving scenarios. Not only we achieved higher precision (in one of the problems outperforming by 25% all other methods), but, more significantly, we only used a single class beforehand, while other methods used all the available classes) and we generated interpretable models with smaller number of features used, through extremely weak and weak supervision. We demonstrated the ability to detect and learn new classes for both, images and numerical examples.
Peripheral Nerve Pulsed Radiofrequency For Trigeminal Neuralgia Treatment: Is It An Effective Method?
Authors: Tanyel Tuba , Bilir Ayten , Gulec Sacit 
Published: April 2021

Abstract
ObjectiveTrigeminal neuralgia is a paroxysmal and shock-like pain in the trigeminal nerve area. Various treatment options have been used for trigeminal neuralgia such as medical treatment, interventional procedures and surgical operations. Pulsed radiofrequency (PRF) is a minimally invasive percutaneous technique which seems to be safer and easier to perform.This retrospective study aims to evaluate the analgesic effect, duration of efficacy and side effects of PRF procedures in the peripheral branches of the trigeminal nerve.Methods and MaterialThe data of the patients with trigeminal neuralgia who were followed up in our hospital's algology clinic from 2016 to 2018 were reviewed retrospectively. Patients aged between 18-70 who didn’t respond to medical treatment or couldn’t use medication due to side effects, were treated with PRF procedure for peripheral branches of trigeminal nerve were selected for this study. Demographic profile, clicinal presentation, pain intensity, duration of efficacy and complications were evaluated from their files.Results21 patients who underwent ultrasonography (USG) guided PRF procedures were included the study.Mean visual analog scale (VAS) value of the patients was found to have decreased from 9.25 ± 0.63 to 1.55 ± 0.88 at the end of the first month (p<0.001). The painless period for the patients lasted up to 12 (9-21) months and no complications occurred.ConclusionPRF procedure seems to be an effective and safe method in patients who respond to block of the peripheral branches of the trigeminal nerve.Key message: The use of pulsed radiofrequency method for the treatment of trigeminal neuralgia seems to be an effective and safe method. In addition, being easily applicable and repeatable is another advantage of the method.
Wnt5a Regulates Odontoblast Inflammation by Promoting CCL2 Expression
Authors: Zhang Ronghua , Ge Wei , Huang Ruixue , Meng Zhao , Xu Xiaojie , Liu Xuesheng , Zhao Yuan 
Published: April 2021

Abstract
Objective Wnt5a is involved inflammation, including pulpitis, by upregulating cytokine/chemokine expression. Odontoblasts are the first layer cells in dental pulp and respond to inflammatory stimuli. However, whether Wnt5a is involved in odontoblast inflammation is unclear. This study aimed to investigate the role of Wnt5a in odontoblast inflammation. Methods We measured and compared Wnt5a- or TNF-α-induced cytokine/chemokine expression in mouse odontoblast-like (17IIA11) cells by real-time PCR and Western blotting. Transwell assays were used to examine the effect of Wnt5a on RAW264.7 macrophage migration. We examined whether the nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways were involved in the molecular mechanism of TNF-α or Wnt5a in 17IIA11 cells by Western blotting. Results TNF-α upregulated Wnt5a in odontoblasts. Wnt5a upregulated CCL2 expression in odontoblasts and enhanced RAW264.7 cell migration. We also found that TNF-α-induced Wnt5a expression was abrogated by inhibiting the MAPK pathway or NF-κB activity and that inhibiting MAPK activity could lead to decreased NF-κB activity. Conclusions Wnt5a is involved in the TNF-α-induced inflammatory response in odontoblasts. TNF-α upregulates Wnt5a expression via MAPK-dependent NF-κB activation in odontoblasts. Wnt5a upregulates CCL2 expression in odontoblasts and enhances RAW264.7 macrophage migration.
Training Needs Of Research Ethics Committee Members In Cameroon Regarding Research Participant Protection
Authors: Douanla Ingrid Marcelle Koutio , Ntsekendio Paul Nyibio , Dieumo Frank Forex Kiadjieu , Naah Felicité Tabala , Lekpa Fernando Kemta , Bekolo Cavin Epie , Nighie Ketina Hirma Tchio , Dongmo Rogacien Kana , Goura André Pascal , Nangue Charlette , Bisseck Anne-Cécile Zoung Kanyi , Ateudjieu Jérôme 
Published: April 2021

Abstract
Background The capacity of the Research Ethic Committee (REC) members to review research protocol is one of the frequently raised problems. The purpose of this study was to assess training needs of members of research ethics committee in Cameroon regarding research participant protection.Methods It was a cross-sectional descriptive study conducted in all the regions of Cameroon during the last quarter of the year 2020, assessing training needs of REC members’ ethical evaluation of health research protocols. Data were collected from all eligible REC members by trained and supervised surveyors using a well designed questionnaire integrated in smartphones via ODK-collect. The data were analyzed by estimating proportions with 95% Confidence Interval using the EpiInfo software version 7.2.2.6.Findings Out of the 79 ethics committee members reached, 64 (81.01%) accepted to participate including 28 (43.75) female. The result showed that,21 (32.81%) of ethics committee members were not trained in research ethics evaluation including 68.75% not exposed to training on research participants protection during clinical trials. A given fraction of respondent was not aware of the existence of key national regulations (25%) and international guidelines like the Helsinki Declaration (32.81%). Participants identified and ranked their priorities in terms of training needs in research participant’s protection, national text regulating research in Cameroon, evaluations’ procedures of research protocol, organization of research in Cameroon, and protection of participants in research involving the transfer of biological materials. The workshop and e-learning courses were seen to be the main accessible source of training.Conclusion Not all ethics committee members received training on ethical principles regarding research ethics review, review process and monitoring of research protocols, and on ethical issues associated to each study design including clinical trials. These gaps and the needs perceived by participants are to be taken into account when setting up a training program for RECs members on ethical evaluation in Cameroon.
Identification of Markers that Distinguish Adipose Tissue and Glucose and Insulin Metabolism using a Multi-Modal Machine Learning Approach
Authors: Henninger Josefin , Eliasson Björn , Smith Ulf , Rawshani Aidin 
Published: April 2021

Abstract
Background The study of metabolomics has improved our knowledge of the biology behind type 2 diabetes and its related metabolic dysregulations. We aimed to investigate markers of adipose tissue morphology dysfunction and insulin and glucose metabolism dysfunction in 53 non-obese male individuals.Methods The participants underwent extensive clinical, biochemical and magnetic resonance imaging phenotyping, and we also investigated non-targeted serum metabolites. We used a multi-modal machine learning approach to evaluate which serum metabolomic compounds predicted markers of glucose and insulin metabolism, adipose tissue morphology and distribution.Results Fasting glucose was associated with metabolites of intracellular insulin action and beta cell dysfunction, namely cysteine-s-sulphate and n-acetylgarginine. Fasting insulin was predicted by eugenol, a metabolite of beta-oxidation of fatty acids. OGTT glucose levels at 30 minutes were predicted by 7-Hoca and taurochenodeoxycholate, microbiota derived metabolites, as well as, fatty acid chains. Both insulin clamp and HOMA-IR were predicted by metabolites involved in beta-oxidation of fatty acids and biodegradation of triacylglycerol, namely tartrate and 3-phosphoglycerate, as well as pyruvate. OGTT glucose area under curve (AUC) was associated with bile acid metabolites and OGTT insulin AUC was predicted by subcutaneous adipocyte size as well as a metabolite of sphingolipid metabolism. Finally, subcutaneous adipocyte size was associated with several long chain fatty acids, metabolites involved in fatty acid biosynthesis, markers of beta-oxidation of fatty acids, as well as markers of sphingolipid metabolism. Lipid oxidation metabolites also predicted liver lipid accumulation, and cardiac lipid storage was predicted by a metabolite of branched chain amino acid (BCAA) turnover. Only adipocyte cell size, age and alpha-tocopherol were associated with visceral fat.Conclusions We identified several biomarkers associated with markers of dysfunction in adipose tissue and insulin and glucose metabolism using a multi-modal machine learning approach. Our approach demonstrated the relative importance of serum metabolites and they outperformed traditional clinical and biochemical variables for most endpoints.
Loss of Monoacylglycerol O Acyltransferase 2 Can Be Compensated for by Diacylglycerol O Acyltransferases 1 and 2 in High Fat Diet Induced Obesity and Mammary Cancer Development
Authors: Mei Yan , Wang Jing , Lu Jia-Bin , Lu Guan-Ming , Peng Li-Xia , Lang Yan-Hong , Zheng Li-Sheng , Huang Bi-Jun , Shi Yan-Xia , Qian Chao-Nan 
Published: April 2021

Abstract
Background: Dietary fat absorption involves the re esterification of digested triacylglycerol in the enterocytes, it is a biological process catalyzed by monoacylglycerol O acyltransferase 2 (MOGAT2, aka MGAT2), which is highly expressed in the small intestine. A previous study showed that the loss of the Mogat2 gene can prevent high fat diet induced obesity in mice. Obesity is associated with an increased risk of several types of cancer including postmenopausal breast cancer.Methods: We collected 147 patients with triple negative breast adenocarcinoma to explore the relationship between the expression of MOGAT2 and patient overall survival. And we generated a Mogat2 deficient mouse mammary tumor model by crossing Mogat2 deficient mice with MMTV PyMT mice to examine the effect of losing MOGAT2 in vivo. Results: Our founding suggest that obesity was induced by a relatively high fat diet (37% of calories from fat) in the mice with or without Mogat2 knockout. Mammary tumor development was deteriorated by a relatively high fat diet regardless of Mogat2 deficiency. As a compensation mechanism, upregulation of diacylglycerol O acyltransferases 1 and 2 (Dgat1 and Dgat2) in the Mogat2 deficient mice was found. Conclusions: Elevated expression of MOGAT2 in triple negative breast adenocarcinoma predicts poorer patient overall survival. With the compensation of Dgat1 and Dgat2, Mogat2 deficiency alone cannot prevent fat diet induced obesity, nor prevent mammary tumor development in a mouse model.
Excellent response to high-dose intravenous immunoglobulin in anti-PF4 positive cerebral thrombosis following Ofxord-AstraZeneca AZD1222 vaccine
Authors: Zanferrari Carla , Fanucchi Simona , Liberato Nicola L. , Lauria Giuseppe , Persico Alessandra , Cavallini Anna 
Published: April 2021

Abstract

One week after Oxford-AstraZeneca COVID-19 vaccine (AZD1222), a 40-year-old woman who did not report previous SARS-Cov2 infection developed headache resistant to analgesics, then nausea and vomiting. On admission, the neurological examination was negative and haematological exams showed thrombocytopenia (48x10 9 /L; range 130-400), increased d-dimer (27,546 ng/ml; normal value <500), and normal partial thromboplastin time (PTT; 24.9; range 24-38). Brain computed tomography (CT) and magnetic resonance imaging (MRI) identified an extended thrombosis involving left sigmoidal and transversal sinuses, rectus and inferior longitudinal sinuses without parenchymal damages. Serum anti-platelet factor 4 (PF4) IgG antibodies tested strongly positive (2.59 optical density; normal <0.4) confirming the hypothesis of a mechanisms mimicking heparin-induced thrombocytopenia. Enoxaparin 8,000 units were administered twice in 24 hours, then changed with fondaparinux. Four days later the clinical picture worsened with drowsiness, aphasia and right-side hemiparesis. Brain CT and MRI disclosed left-side temporal-occipital hypodensity with haemorrhagic infarctions. Platelet count remained low (range 37 to 45x10 9 /L) while PTT decreased below the lower normal value. Intravenous immunoglobulin (2 g/kg) was started. Over the following 5 days, the platelet count rapidly increased from 27x10 9 /L to 318x10 9 /L, while PTT normalized. The clinical picture significantly improved.Anti-PF4 antibody assay and high-dose IVIG therapy should be immediately considered in patients with vaccine-induced prothrombotic immune thrombocytopenia (VIPIT) and thrombosis to avoid life-threatening complications.