keyword
https://read.qxmd.com/read/38645995/robust-isolated-attosecond-pulse-generation-with-self-compressed-subcycle-drivers-from-hollow-capillary-fibers
#1
JOURNAL ARTICLE
Marina Fernández Galán, Javier Serrano, Enrique Conejero Jarque, Rocío Borrego-Varillas, Matteo Lucchini, Maurizio Reduzzi, Mauro Nisoli, Christian Brahms, John C Travers, Carlos Hernández-García, Julio San Roman
High-order harmonic generation (HHG) arising from the nonperturbative interaction of intense light fields with matter constitutes a well-established tabletop source of coherent extreme-ultraviolet and soft X-ray radiation, which is typically emitted as attosecond pulse trains. However, ultrafast applications increasingly demand isolated attosecond pulses (IAPs), which offer great promise for advancing precision control of electron dynamics. Yet, the direct generation of IAPs typically requires the synthesis of near-single-cycle intense driving fields, which is technologically challenging...
April 17, 2024: ACS Photonics
https://read.qxmd.com/read/38645021/respiratory-infection-and-asthma-prone-low-vaccine-responder-children-demonstrate-distinct-mononuclear-cell-dna-methylation-pathways
#2
David Martino, Nikki Schultz, Ravinder Kaur, Simon D Haren, Nina Kresoje, Annmarie Hoch, Joann Diray-Arce, Jessica Lasky Su, Ofer Levy, Michael Pichichero
Background Infants with frequent viral and bacterial respiratory infections exhibit compromised immunity to routine immunisations. They are also more likely to develop chronic respiratory diseases in later childhood. This study investigated the feasibility of epigenetic profiling to reveal endotype-specific molecular pathways with potential for early identification and immuno-modulation. Peripharal immune cells from respiratory infection allergy/asthma prone (IAP) infants were retrospectively selected for genome-wide DNA methylation and single nucleotide polymorphism analysis...
April 3, 2024: Research Square
https://read.qxmd.com/read/38641487/pancreas-2000-my-journey-with-the-central-organ
#3
REVIEW
J-Matthias Löhr
The European Pancreatic Club Lifetime Achievement Award is a distinction awarded for research on the pancreas and service to European Pancreatology. It comes with the obligation to submit a review article to our society's journal, Pancreatology. It was awarded to me 2023 and I take this opportunity to highlight my journey with the central organ AKA the pancreas, that is inseparatable from "Pancreas 2000" - an educational program for future pancreatologists, inaugurated by Karolinska Institutet.
April 8, 2024: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://read.qxmd.com/read/38637643/quantum-mechanical-modeling-of-high-intensity-laser-pulse-interaction-with-hydrogen-atom-with-considering-the-magnetic-field-and-polarization
#4
JOURNAL ARTICLE
Marjan Zakavi, Mohammad Sabaeian
In the study of the non-relativistic interaction between high-intensity femtosecond laser pulses and atoms, the influence of the magnetic field is commonly overlooked. This work investigates the effects of the magnetic field in the high-intensity few-cycle laser pulses with non-relativistic intensity of <mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>3.5</mml:mn> <mml:mo>×</mml:mo> <mml:msup><mml:mn>10</mml:mn> <mml:mn>14</mml:mn></mml:msup> <mml:mrow/> <mml:mspace/> <mml:mspace/> <mml:mtext>W</mml:mtext> <mml:mo>/</mml:mo> <mml:msup><mml:mrow><mml:mtext>cm</mml:mtext></mml:mrow> <mml:mn>2</mml:mn></mml:msup> </mml:mrow> </mml:math> at the center wavelength of 800 nm on the high-order harmonic generation (HHG), attosecond pulse train (APT), isolated attosecond pulse (IAP), and the electron trajectory in the hydrogen atom, employing the numerical solution of the time-dependent Schrödinger equation in three dimensions (3D-TDSE)...
April 18, 2024: Scientific Reports
https://read.qxmd.com/read/38637233/deletion-of-myeloid-specific-orai1-calcium-channel-does-not-affect-pancreatic-tissue-damage-in-experimental-acute-pancreatitis
#5
JOURNAL ARTICLE
Wentong Mei, Xiuli Zhang, Mengya Niu, Liang Li, Xiaoyu Guo, Gang Wang, Stephen Pandol, Li Wen, Feng Cao
BACKGROUND: Store-operated Ca2+ entry (SOCE) mediated by ORAI1 channel plays a crucial role in acute pancreatitis (AP). Macrophage is an important regulator in amplifying pancreatic tissue damage, but little is known about the role of ORAI1 in macrophages. In this study, we examined the effects of macrophage-specific ORAI1 on pancreatic tissue damage in AP. METHOD: Myeloid-specific Orai1 deficient mice was generated by crossing a LysM-Cre mouse line with Orai1f/f mice...
April 5, 2024: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://read.qxmd.com/read/38632876/group-b-streptococcus-colonization-status-and-antibiotic-use-during-labour-a-single-centre-observational-study
#6
JOURNAL ARTICLE
Iwona Janczewska, Joanna Jassem-Bobowicz, Katarzyna Hinca, Katarzyna Stefanska, Iwona Domzalska-Popadiuk
OBJECTIVES: Group B streptococcus (GBS) colonization among pregnant women is the leading cause of neonatal infection. Intrapartum antibiotic prophylaxis (IAP) is the most effective method to reduce the incidents of neonatal sepsis. We describe compliance with GBS management and the implementation of IAP in the context of the long-term effect of antibiotics. MATERIAL AND METHODS: The study was conducted among 249 childbearing women hospitalized between January 2022 and February 2022 at University Clinical Center in Gdansk, Poland...
April 18, 2024: Ginekologia Polska
https://read.qxmd.com/read/38626436/differential-susceptibility-of-cells-infected-with-defective-and-intact-hiv-proviruses-to-killing-by-obatoclax-and-other-small-molecules
#7
JOURNAL ARTICLE
Gayatri Nikhila Kadiyala, Sushama Telwatte, Adam Wedrychowski, Julie Janssens, Sun Jin Kim, Peggy Kim, Steven Deeks, Joseph K Wong, Steven A Yukl
OBJECTIVES: Some drugs that augment cell-intrinsic defenses or modulate cell death/survival pathways have been reported to selectively kill cells infected with HIV or SIV, but comparative studies are lacking. We hypothesized that these drugs may differ in their ability to kill cells infected with intact and defective proviruses. DESIGN: To investigate this hypothesis, drugs were tested ex vivo on Peripheral Blood Mononuclear Cells (PBMC) from nine ART-suppressed individuals...
April 16, 2024: AIDS
https://read.qxmd.com/read/38617326/intrapartum-antibiotic-prophylaxis-selects-for-mutators-in-group-b-streptococci-among-persistently-colonized-patients
#8
Macy E Pell, Heather M Blankenship, Jennifer A Gaddy, H Dele Davies, Shannon D Manning
Through vaginal colonization, GBS causes severe pregnancy outcomes including neonatal sepsis and meningitis. Although intrapartum antibiotic prophylaxis (IAP) has reduced early-onset disease rates, persistent GBS colonization has been observed in patients following prophylaxis. To determine whether IAP selects for genomic signatures that enhance GBS survival and persistence in the vaginal tract, whole-genome sequencing was performed on 97 isolates from 58 patients before (prenatal) and after (postpartum) IAP/childbirth...
April 2, 2024: bioRxiv
https://read.qxmd.com/read/38600086/combination-of-bazedoxifene-with-chemotherapy-and-smac-mimetics-for-the-treatment-of-colorectal-cancer
#9
JOURNAL ARTICLE
Rhynelle S Dmello, Michelle Palmieri, Pathum S Thilakasiri, Larissa Doughty, Tracy L Nero, Ashleigh R Poh, Sarah Q To, Erinna F Lee, W Douglas Fairlie, Lisa Mielke, Michael W Parker, Ivan K H Poon, Eduard Batlle, Matthias Ernst, Ashwini L Chand
Excessive STAT3 signalling via gp130, the shared receptor subunit for IL-6 and IL-11, contributes to disease progression and poor survival outcomes in patients with colorectal cancer. Here, we provide evidence that bazedoxifene inhibits tumour growth via direct interaction with the gp130 receptor to suppress IL-6 and IL-11-mediated STAT3 signalling. Additionally, bazedoxifene combined with chemotherapy synergistically reduced cell proliferation and induced apoptosis in patient-derived colon cancer organoids...
April 10, 2024: Cell Death & Disease
https://read.qxmd.com/read/38599956/treatment-outcomes-of-gemcitabine-plus-nab-paclitaxel-in-pancreatic-cancer-patients-with-malignant-ascites
#10
JOURNAL ARTICLE
Kanae Inoue, Koh Fukushi, Shota Yamaguchi, Tomonao Taira, Taro Shibuki, Tomoyuki Satake, Kazuo Watanabe, Mitsuhito Sasaki, Hiroshi Imaoka, Shuichi Mitsunaga, Masafumi Ikeda
BACKGROUND: Gemcitabine plus nab-paclitaxel (GnP) therapy has been shown to improve the prognosis in patients with metastatic pancreatic cancer (PC); however, the efficacy and safety of GnP in PC patients with malignant ascites (MA) remains unknown. METHODS: We retrospectively investigated PC patients with peritoneal dissemination who had received GnP as first-line chemotherapy at our institution between March 2015 and August 2021. The following patient data were reviewed: patient characteristics, overall survival (OS), progression-free survival (PFS), objective response rate (ORR), adverse events (AEs), and relative dose intensity (RDI)...
April 4, 2024: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://read.qxmd.com/read/38599740/-analysis-of-the-workload-in-medical-time-according-to-the-degree-of-complexity-of-the-samples-and-proposal-of-an-algorithm-for-the-equitable-distribution-of-the-workload-in-an-anatomic-pathology-department
#11
JOURNAL ARTICLE
Angels Quera, Víctor Torres-Padrosa, Adrián Nieto Ortiz
INTRODUCTION: In a pathological anatomy service, the workload in medical time is analyzed based on the complexity of the samples received and its distribution among pathologists is assessed, presenting a new computer algorithm that favors an equitable distribution. METHODS: Following the second edition of the Spanish guidelines for the estimation of workload in cytopathology and histopathology (medical time) according to the Spanish Pathology Society-International Academy of Pathology (SEAP-IAP) catalog of samples and procedures, we determined the workload units (UCL) per pathologist and the overall UCL of the service, the average workload of the service (MU factor), the time dedicated by each pathologist to healthcare activity and the optimal number of pathologists according to the workload of the service...
2024: Revista Española de Patología
https://read.qxmd.com/read/38592890/importance-of-habitat-context-in-modelling-risk-maps-for-two-established-invasive-alien-plant-species-the-case-of-ailanthus-altissima-and-phytolacca-americana-in-slovenia-europe
#12
JOURNAL ARTICLE
Maarten de Groot, Erika Kozamernik, Janez Kermavnar, Marija Kolšek, Aleksander Marinšek, Andreja Nève Repe, Lado Kutnar
Forests are important ecosystems that face threats from climate change and global environmental shifts, with invasive alien plant species being a significant concern. Some of these invasive species have already become established, while others are in the process of naturalisation. Although forests are a relatively stable ecosystem, extreme weather events increase their vulnerability to change, and clearings left after natural disturbances are particularly susceptible to invasion by alien plant species (IAPS)...
March 19, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38592056/moderate-intra-abdominal-pressure-levels-in-robot-assisted-radical-prostatectomy-seem-to-have-no-negative-impact-on-clinical-outcomes
#13
JOURNAL ARTICLE
Angelo Ippolito, Jan Mulier, Marta Hahn, Mike Wenzel, Philipp Mandel, Armin N Flinspach, Katharina J Wenger
Introduction: Radical prostatectomy is increasingly performed laparoscopically with robot assistance (RALRP). RALRP, as with all laparoscopic procedures, requires a pneumoperitoneum, which might result in peritoneal inflammatory response reactions and postoperative pain. The aim of this retrospective single-centre study was to analyse the effects of a pneumoperitoneum during RARLP on clinical outcomes. Methods: All patients who underwent robot-guided prostatectomy in our clinic were included, with the exception of patients who were converted to open prostatectomy...
February 20, 2024: Journal of Clinical Medicine
https://read.qxmd.com/read/38584052/development-of-a-novel-ct-based-index-for-predicting-the-number-of-extracorporeal-shockwave-lithotripsy-eswl-sessions-required-for-successful-fragmentation-of-obstructing-pancreatic-duct-stones
#14
JOURNAL ARTICLE
Nikhil Bush, Praneeth Chandragiri, Nitish Ashok Gaurav, Sneh Sonaiya, Ila Lahooti, Anmol Singh, Abhinav Gupta, Elham Afghani, Georgios Papachristou, Mouen A Khashab, Peter J Lee, Rupjyoti Talukdar, Sundeep Lakhtakia, Vikesh K Singh, Samuel Han, Manu Tandan, Venkata S Akshintala
BACKGROUND & AIM: Extracorporeal shock wave lithotripsy (ESWL) is used for the treatment of pancreatic duct stones (PDS) in patients with chronic pancreatitis (CP). We aimed to develop a CT based index to predict the required number of ESWL sessions for technical success. METHODS: We retrospectively evaluated patients with PDS secondary to CP who underwent ESWL. Technical success was defined as the complete fragmentation of stones to <3 mm. CT features including PDS size, number, location, and density in Hounsfield units (HU) were noted...
March 28, 2024: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://read.qxmd.com/read/38583080/a-narrative-review-on-therapeutic-potential-of-naringenin-in-colorectal-cancer-focusing-on-molecular-and-biochemical-processes
#15
REVIEW
Mohammad Yasin Zamanian, Maryam Golmohammadi, Bekhzod Abdullaev, María Olalla García, Adeeb Abdulally Abdulhussien Alazbjee, Abhinav Kumar, Sameer S Mohaamed, Beneen M Hussien, Fattaneh Khalaj, Seyede Mahsa Hodaei, Niyousha Shirsalimi, Gervason Moriasi
Colorectal cancer (CRC) is a common and highly metastatic cancer affecting people worldwide. Drug resistance and unwanted side effects are some of the limitations of current treatments for CRC. Naringenin (NAR) is a naturally occurring compound found in abundance in various citrus fruits such as oranges, grapefruits, and tomatoes. It possesses a diverse range of pharmacological and biological properties that are beneficial for human health. Numerous studies have highlighted its antioxidant, anticancer, and anti-inflammatory activities, making it a subject of interest in scientific research...
April 2024: Cell Biochemistry and Function
https://read.qxmd.com/read/38582601/crispr-cas9-mediated-dsrnase-knockout-improves-rnai-efficiency-in-the-fall-armyworm
#16
JOURNAL ARTICLE
Jinmo Koo, Guan-Heng Zhu, Subba Reddy Palli
Lepidopteran insects are refractory to RNA interference (RNAi) response, especially to orally delivered double-stranded RNA (dsRNA). High nuclease activity in the midgut lumen is proposed as one of the major reasons for RNAi insensitivity. We identified three dsRNase genes highly expressed in the midgut of fall armyworm (FAW), Spodoptera frugiperda. The genomic region harboring those three dsRNase genes was deleted using the CRISPR-Cas9-mediated genome editing method. A homozygous line with deletion of three dsRNase genes was produced...
March 2024: Pesticide Biochemistry and Physiology
https://read.qxmd.com/read/38580492/pancreatic-anastomosis-training-models-current-status-and-future-directions
#17
REVIEW
Kunal Joshi, Daniel M Espino, Duncan Et Shepherd, Nasim Mahmoodi, Keith J Roberts, Nikolaos Chatzizacharias, Ravi Marudanayagam, Robert P Sutcliffe
Postoperative pancreatic fistula (POPF) is a major cause of morbidity and mortality after pancreatoduodenectomy (PD), and previous research has focused on patient-related risk factors and comparisons between anastomotic techniques. However, it is recognized that surgeon experience is an important factor in POPF outcomes, and that there is a significant learning curve for the pancreatic anastomosis. The aim of this study was to review the current literature on training models for the pancreatic anastomosis, and to explore areas for future research...
April 1, 2024: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://read.qxmd.com/read/38568333/unpleasant-emotion-inhibits-attentional-focus-toward-a-peripheral-target-in-a-visual-search-an-erp-study
#18
JOURNAL ARTICLE
Motoyuki Sanada, Jun'ichi Katayama
Previous studies have found that emotional states affect the extent of attention, and the effect has been explained by adaptive views. If the adaptive explanations are true, emotion should modulate attentional focus toward a peripheral stimulus. The present study investigated if emotion affects the focus of attention toward a peripheral target in a visual search paradigm with event-related brain potential (ERP) measurement. In each trial of the experiment, participants performed a visual search task after an emotion (unpleasant, neutral, or pleasant) was induced by presenting an international affective picture system (IAPS) image...
April 3, 2024: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://read.qxmd.com/read/38567639/characterization-of-invasive-group-b-streptococcus-isolates-from-western-australian-infants-2004-2020
#19
JOURNAL ARTICLE
Ginger Hilpipre, Lucy L Furfaro, Michelle Porter, Christopher C Blyth, Daniel K Yeoh
Background. Invasive Group B Streptococcus (GBS; Streptococcus agalactiae ) remains a leading cause of infant morbidity and mortality. Intrapartum antibiotic prophylaxis (IAP) has been implemented in many countries with a reduction in early-onset disease, but an effective vaccine may further reduce the disease burden. Candidate vaccines targeting capsular polysaccharides and surface proteins are now in clinical trials. Methods. Using whole-genome sequencing and phenotypic antimicrobial susceptibility testing, we characterized sterile-site GBS isolates recovered from Western Australian infants between 2004 and 2020...
April 2024: Journal of Medical Microbiology
https://read.qxmd.com/read/38565467/impact-of-previous-s-1-treatment-on-efficacy-of-liposomal-irinotecan-plus-5-fluorouracil-and-leucovorin-in-patients-with-metastatic-pancreatic-cancer
#20
JOURNAL ARTICLE
Cheng-Yu Tang, Shih-Hung Yang, Chung-Pin Li, Yung-Yeh Su, Sz-Chi Chiu, Li-Yuan Bai, Yan-Shen Shan, Li-Tzong Chen, Shih-Chang Chuang, De-Chuan Chan, Chia-Jui Yen, Cheng-Ming Peng, Tai-Jan Chiu, Yen-Yang Chen, Jen-Shi Chen, Nai-Jung Chiang, Wen-Chi Chou
BACKGROUND/OBJECTIVES: Liposomal irinotecan plus 5-fluorouracil and leucovorin (nal-IRI + 5-FU/LV) provides survival benefits for metastatic pancreatic adenocarcinoma (mPDAC) refractory to gemcitabine-based treatment, mainly gemcitabine plus nab-paclitaxel (GA), in current practice. Gemcitabine plus S-1 (GS) is another commonly administered first-line regimen before nab-paclitaxel reimbursement; however, the efficacy and safety of nal-IRI + 5-FU/LV for mPDAC after failed GS treatment has not been reported and was therefore explored in this study...
March 25, 2024: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
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