keyword
https://read.qxmd.com/read/38537214/inflammatory-and-malignant-uptake-along-crohn-perianal-fistula-on-18f-fdg
#1
JOURNAL ARTICLE
Spencer McKinley, Favour Garuba, Malak Itani, Parakkal Deepak, David H Ballard
Inflammatory increased metabolic activity was discovered in the left anal canal on an 18F-FDG PET/CT scan performed for initial staging of anal squamous cell carcinoma in a patient with history of perianal Crohn disease. This increased uptake was due to a complex intersphincteric perianal fistula with supralevator extension, with a secondary, contiguous, superficial focus of squamous cell carcinoma at the anal verge that was identified on an MRI performed on the same day.
March 25, 2024: Clinical Nuclear Medicine
https://read.qxmd.com/read/38537205/18f-fet-pet-ct-in-calcifying-pseudoneoplasm-of-the-neuraxis-first-case
#2
JOURNAL ARTICLE
Demetrio Aricò, Giulia Giacoppo, Michelangelo Bambaci, Lorenza Marino, Andrea Girlando, Giuseppe Sortino, Giorgia Leone, Bethania Fernandes, Marco Alì, Laura Evangelista, Alberto Romano
A 66-year-old man has been treated in a psychiatric department for 4-5 years for a depressive syndrome, which is associated with poor motor initiative, confusional state, and dysosmia. Dynamic 18F-FET PET/CT showed only faint uptake of radiotracer just above the background on the left frontal calcific lesion. The time-activity curve of the neoplasms showed a descending pattern. After a left fronto-orbitary minicraniotomy surgery, histology examination concluded for a rare calcifying pseudoneoplasm of the neuraxis (CAPNON)...
March 25, 2024: Clinical Nuclear Medicine
https://read.qxmd.com/read/38537153/novel-proteomic-signatures-may-indicate-mri-assessed-intrahepatic-fat-state-and-changes-the-direct-plus-clinical-trial
#3
JOURNAL ARTICLE
Dana T Goldberg, Anat Yaskolka Meir, Gal Tsaban, Ehud Rinott, Alon Kaplan, Hila Zelicha, Nora Klöting, Uta Ceglarek, Berend Iserman, Ilan Shelef, Philip Rosen, Matthias Blüher, Michael Stumvoll, Ohad Etzion, Meir J Stampfer, Frank B Hu, Iris Shai
OBJECTIVE: We demonstrated in the randomized 18-month DIRECT PLUS trial (n=294) that a Mediterranean (MED) diet, supplemented with polyphenol-rich Mankai duckweed, green tea, and walnuts and restricted in red/processed meat, caused substantial intrahepatic fat (IHF%) loss compared with two other healthy diets, reducing NAFLD by half, regardless similar weight loss. Here, we investigated the baseline proteomic profile associated with IHF% and the changes in proteomics associated with IHF% changes induced by lifestyle intervention...
March 27, 2024: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://read.qxmd.com/read/38537079/amino-acid-supplementation-confers-protection-to-red-blood-cells-prior-to-plasmodium-falciparum-bystander-stress
#4
JOURNAL ARTICLE
Heather Colvin Binns, Elmira Alipour, Cameron E Sherlock, Dinah S Nahid, John F Whitesides, Anderson O'Brien Cox, Cristina M Furdui, Glen S Marrs, Daniel B Kim-Shapiro, Regina Joice Cordy
Malaria is a highly oxidative parasitic disease in which anemia is the most common clinical symptom. A major contributor to malarial anemia pathogenesis is the destruction of bystander, uninfected red blood cells (RBCs). Metabolic fluctuations are known to occur in the plasma of individuals with acute malaria, emphasizing the role of metabolic changes in disease progression and severity. Here, we report that conditioned media from Plasmodium falciparum culture induces oxidative stress in uninfected, catalase-depleted RBCs...
March 27, 2024: Blood Advances
https://read.qxmd.com/read/38537071/metabolic-tumor-burden-as-a-prognostic-indicator-after-neoadjuvant-chemotherapy-in-pancreatic-cancer
#5
JOURNAL ARTICLE
Woohyung Lee, Minyoung Oh, Jae Seung Kim, Minkyu Sung, Kwangpyo Hong, Bong Jun Kwak, Yejong Park, Eunsung Jun, Ki Byung Song, Dae Wook Hwang, Jae Hoon Lee, Changhoon Yoo, Kyu-Pyo Kim, Inkeun Park, Jae Ho Jeong, Heung-Moon Chang, Baek-Yeol Ryoo, Jung Bok Lee, Song Cheol Kim
BACKGROUND: There is no standardized assessment for evaluating response although neoadjuvant chemotherapy (NAT) is widely accepted for borderline resectable or locally advanced pancreatic cancer (BRPC or LAPC). This study was aimed to evaluate NAT response using positron emission tomography with 2-deoxy-2-[fluorine-18]fluoro-D-glucose (18F-FDG-PET/CT) parameters alongside carbohydrate antigen (CA) 19-9 levels. METHODS: Patients who underwent surgery after NAT for BRPC and LAPC between 2017 and 2021 were identified...
April 3, 2024: International Journal of Surgery
https://read.qxmd.com/read/38537053/characterizing-the-opioidergic-mechanisms-of-repetitive-transcranial-magnetic-stimulation-induced-analgesia-a-randomized-controlled-trial
#6
JOURNAL ARTICLE
Ying Liu, Junfeng Sun, Chaomin Wu, Jinxuan Ren, Yanni He, Na Sun, Hao Huang, QunShan Chen, Dan Liu, Yangyuxin Huang, Feng Xu, Lina Yu, Bernadette M Fitzgibbon, Robin F H Cash, Paul B Fitzgerald, Min Yan, Xianwei Che
Repetitive transcranial magnetic stimulation (rTMS) is a promising technology to reduce chronic pain. Investigating the mechanisms of rTMS analgesia holds the potential to improve treatment efficacy. Using a double-blind and placebo-controlled design at both stimulation and pharmacologic ends, this study investigated the opioidergic mechanisms of rTMS analgesia by abolishing and recovering analgesia in 2 separate stages across brain regions and TMS doses. A group of 45 healthy participants were equally randomized to the primary motor cortex (M1), the dorsolateral prefrontal cortex (DLPFC), and the Sham group...
March 26, 2024: Pain
https://read.qxmd.com/read/38537008/impact-of-anthro-metabolic-indices-and-gestational-weight-gain-on-maternal-and-neonatal-outcomes-a-prospective-observational-study
#7
JOURNAL ARTICLE
Esra Keles, Leyla Kaya, Neşe Yakşi, Zahide Kaya, Önder Tosun
OBJECTIVE: The aim of this study was to examine the relationship of anthro-metabolic indices on maternal and neonatal outcomes. METHODS: This prospective observational study was conducted on healthy mother-baby pairs between January 1, 2023 and July 1, 2023. Detailed sociodemographic information was collected through an interview with the mother. Clinical, biochemical, obstetric, fetal, and neonatal outcomes were abstracted from hospital medical records. Anthropometric measurements were obtained from the examination of mother-baby pairs...
2024: Revista da Associação Médica Brasileira
https://read.qxmd.com/read/38537007/independent-predictors-for-non-alcoholic-fatty-liver-disease-in-patients-with-treatment-na%C3%A3-ve-chronic-hepatitis-b
#8
JOURNAL ARTICLE
Gulsah Tuncer, Ceyda Geyiktepe-Guclu, Osman Faruk Bayramlar, Burcu Atasoy Bozan, Cigdem Yucel, Betul Copur, Kadir Gorkem Guclu, Mustafa Yıldırım, Gonul Sengöz, Filiz Pehlivanoglu
OBJECTIVE: There are limited data on non-alcoholic fatty liver disease in chronic hepatitis B virus infection. We aimed to determine the predictors for non-alcoholic fatty liver disease in patients with treatment-naïve chronic hepatitis B virus infection. METHODS: All consecutive treatment-naïve patients with chronic hepatitis B virus infection at the Haseki Training and Research Hospital between October 1, 2021, and September 31, 2022, were retrospectively enrolled...
2024: Revista da Associação Médica Brasileira
https://read.qxmd.com/read/38536958/assessing-the-interaction-effects-of-mitochondrial-dna-polymorphisms-and-lifestyle-on-heel-bone-mineral-density
#9
JOURNAL ARTICLE
Dan He, Huan Liu, Yijing Zhao, Wenming Wei, Qingqing Cai, Sirong Shi, Xiaoge Chu, Na Zhang, Xiaoyue Qin, Yumeng Jia, Yan Wen, Bolun Cheng, Feng Zhang
BACKGROUND: Bone mineral density (BMD) is a major predictor of osteoporotic fractures, and previous studies have reported the effects of mitochondrial dysfunction and lifestyle on BMD, respectively. However, their interaction effects on BMD are still unclear. Therefore, we aimed to investigate the possible interaction of mitochondrial DNA (mtDNA) and common lifestyles contributing to osteoporosis. METHODS: Our analysis included 119,120 white participants (Nfemale=65,949 and Nmale=53,171) from the UK Biobank with heel BMD phenotype data...
March 27, 2024: Journal of Clinical Endocrinology and Metabolism
https://read.qxmd.com/read/38536934/attenuation-of-fibroblast-activation-and-fibrosis-by-adropin-in-systemic-sclerosis
#10
JOURNAL ARTICLE
Minrui Liang, Nicholas Dickel, Andrea-Hermina Györfi, Bilgesu SafakTümerdem, Yi-Nan Li, Aleix Rius Rigau, Chunguang Liang, Xuezhi Hong, Lichong Shen, Alexandru-Emil Matei, Thuong Trinh-Minh, Cuong Tran-Manh, Xiang Zhou, Ariella Zehender, Alexander Kreuter, Hejian Zou, Georg Schett, Meik Kunz, Jörg H W Distler
Fibrotic diseases impose a major socioeconomic challenge on modern societies and have limited treatment options. Adropin, a peptide hormone encoded by the energy homeostasis-associated ( ENHO ) gene, is implicated in metabolism and vascular homeostasis, but its role in the pathogenesis of fibrosis remains enigmatic. Here, we used machine learning approaches in combination with functional in vitro and in vivo experiments to characterize adropin as a potential regulator involved in fibroblast activation and tissue fibrosis in systemic sclerosis (SSc)...
March 27, 2024: Science Translational Medicine
https://read.qxmd.com/read/38536932/crif1-deficiency-induces-foxp3-low-inflammatory-non-suppressive-regulatory-t-cells-thereby-promoting-antitumor-immunity
#11
JOURNAL ARTICLE
Sangsin Lee, Seung Geun Song, Gwanghun Kim, Sehui Kim, Hyun Jung Yoo, Jaemoon Koh, Ye-Ji Kim, Jingwen Tian, Eunji Cho, Youn Soo Choi, Sunghoe Chang, Hyun Mu Shin, Kyeong Cheon Jung, Ji Hoon Kim, Tae Min Kim, Yoon Kyung Jeon, Hye Young Kim, Minho Shong, Ji Hyung Kim, Doo Hyun Chung
Recently identified human FOXP3low CD45RA- inflammatory non-suppressive (INS) cells produce proinflammatory cytokines, exhibit reduced suppressiveness, and promote antitumor immunity unlike conventional regulatory T cells (Tregs ). In spite of their implication in tumors, the mechanism for generation of FOXP3low CD45RA- INS cells in vivo is unclear. We showed that the FOXP3low CD45RA- cells in human tumors demonstrate attenuated expression of CRIF1, a vital mitochondrial regulator. Mice with CRIF1 deficiency in Tregs bore Foxp3low INS-Tregs with mitochondrial dysfunction and metabolic reprograming...
March 29, 2024: Science Advances
https://read.qxmd.com/read/38536921/glutamine-antagonist-drp-104-suppresses-tumor-growth-and-enhances-response-to-checkpoint-blockade-in-keap1-mutant-lung-cancer
#12
JOURNAL ARTICLE
Ray Pillai, Sarah E LeBoeuf, Yuan Hao, Connie New, Jenna L E Blum, Ali Rashidfarrokhi, Shih Ming Huang, Christian Bahamon, Warren L Wu, Burcu Karadal-Ferrena, Alberto Herrera, Ellie Ivanova, Michael Cross, Jozef P Bossowski, Hongyu Ding, Makiko Hayashi, Sahith Rajalingam, Triantafyllia Karakousi, Volkan I Sayin, Kamal M Khanna, Kwok-Kin Wong, Robert Wild, Aristotelis Tsirigos, John T Poirier, Charles M Rudin, Shawn M Davidson, Sergei B Koralov, Thales Papagiannakopoulos
Loss-of-function mutations in KEAP1 frequently occur in lung cancer and are associated with poor prognosis and resistance to standard of care treatment, highlighting the need for the development of targeted therapies. We previously showed that KEAP1 mutant tumors consume glutamine to support the metabolic rewiring associated with NRF2-dependent antioxidant production. Here, using preclinical patient-derived xenograft models and antigenic orthotopic lung cancer models, we show that the glutamine antagonist prodrug DRP-104 impairs the growth of KEAP1 mutant tumors...
March 29, 2024: Science Advances
https://read.qxmd.com/read/38536908/tisb-protein-is-the-single-molecular-determinant-underlying-multiple-downstream-effects-of-ofloxacin-in-escherichia-coli
#13
JOURNAL ARTICLE
Julien Cayron, Thierry Oms, Tatjana Schlechtweg, Safia Zedek, Laurence Van Melderen
Bactericidal antibiotics can cause metabolic perturbations that contribute to antibiotic-induced lethality. The molecular mechanism underlying these downstream effects remains unknown. Here, we show that ofloxacin, a fluoroquinolone that poisons DNA gyrase, induces a cascade of metabolic changes that are dependent on an active SOS response. We identified the SOS-regulated TisB protein as the unique molecular determinant responsible for cytoplasmic condensation, proton motive force dissipation, loss of pH homeostasis, and H2 O2 accumulation in Escherichia coli cells treated with high doses of ofloxacin...
March 29, 2024: Science Advances
https://read.qxmd.com/read/38536878/increased-risk-of-diabetes-mellitus-and-hyperlipidemia-in-patients-with-differentiated-thyroid-cancer
#14
JOURNAL ARTICLE
Hwa Young Ahn, Jooyoung Lee, Jinmo Kang, Eun Kyung Lee
OBJECTIVE: This study aimed to assess the risk of cardiometabolic disease (CMD) in patients with differentiated thyroid cancer (DTC) using a population-based nationwide cohort in Korea. DESIGN: This was a population-based cohort study. METHODS: We selected 2649 patients with DTC and 7947 matched controls. The primary outcome was the composite of CMD including diabetes mellitus (DM), hypertension, hyperlipidemia, cerebrovascular disease, and ischemic heart disease...
March 2, 2024: European Journal of Endocrinology
https://read.qxmd.com/read/38536872/membrane-contact-sites-regulate-vacuolar-fission-via-sphingolipid-metabolism
#15
JOURNAL ARTICLE
Kazuki Hanaoka, Kensuke Nishikawa, Atsuko Ikeda, Philipp Schlarmann, Saku Sasaki, Sotaro Fujii, Sayumi Yamashita, Aya Nakaji, Kouichi Funato
Membrane contact sites (MCSs) are junctures that perform important roles including coordinating lipid metabolism. Previous studies have indicated that vacuolar fission/fusion processes are coupled with modifications in the membrane lipid composition. However, it has been still unclear whether MCS-mediated lipid metabolism controls the vacuolar morphology. Here, we report that deletion of tricalbins (Tcb1, Tcb2, and Tcb3), tethering proteins at endoplasmic reticulum (ER)-plasma membrane (PM) and ER-Golgi contact sites, alters fusion/fission dynamics and causes vacuolar fragmentation in the yeast Saccharomyces cerevisiae ...
March 27, 2024: ELife
https://read.qxmd.com/read/38536853/halofuginone-prevents-outer-retinal-degeneration-in-a-mouse-model-of-light-induced-retinopathy
#16
JOURNAL ARTICLE
Yukihiro Miwa, Deokho Lee, Chiho Shoda, Heonuk Jeong, Kazuno Negishi, Toshihide Kurihara
Photoreceptor cell death can cause progressive and irreversible visual impairments. Still, effective therapies on retinal neuroprotection are not available. Hypoxia-inducible factors (HIFs) are transcriptional factors which strongly regulate angiogenesis, erythropoiesis, intracellular metabolism, and programed cell death under a hypoxic or an abnormal metabolic oxidative stress condition. Therefore, we aimed to unravel that inhibition of HIFs could prevent disease progression in photoreceptor cell death, as recent studies showed that HIFs might be pathologic factors in retinal diseases...
2024: PloS One
https://read.qxmd.com/read/38536827/effects-of-aflibercept-and-bevacizumab-on-cell-viability-cell-metabolism-and-inflammation-in-hypoxic-human-m%C3%A3-ller-cells
#17
JOURNAL ARTICLE
Monique Matsuda, Rafael André da Silva, Vinicius Moraes de Paiva Roda, Mônica Valéria Marquezini, Mário Luiz Ribeiro Monteiro, Dânia Emi Hamassaki
Anti-VEGF (vascular endothelial growth factor) drugs such as aflibercept (AFL) and bevacizumab (BVZ) inhibit pathological neo-angiogenesis and vascular permeability in retinal vascular diseases. As cytokines and growth factors are produced by Müller glial cells under stressful and pathological conditions, we evaluated the in vitro effect of AFL (Eylea®, 0.5 mg/mL) and BVZ (Avastin®, 0.5 mg/mL) on cell viability/metabolism, and cytokine/growth factor production by Müller cells (MIO-M1) under cobalt chloride (CoCl2)-induced hypoxia after 24h, 48h and 72h...
2024: PloS One
https://read.qxmd.com/read/38536819/stem-cell-derived-vessels-on-chip-for-cardiovascular-disease-modeling
#18
JOURNAL ARTICLE
Maren Marder, Caroline Remmert, Julius A Perschel, Munkhtur Otgonbayar, Christine von Toerne, Stefanie Hauck, Judith Bushe, Annette Feuchtinger, Bilal Sheikh, Michel Moussus, Matthias Meier
The metabolic syndrome is accompanied by vascular complications. Human in vitro disease models are hence required to better understand vascular dysfunctions and guide clinical therapies. Here, we engineered an open microfluidic vessel-on-chip platform that integrates human pluripotent stem cell-derived endothelial cells (SC-ECs). The open microfluidic design enables seamless integration with state-of-the-art analytical technologies, including single-cell RNA sequencing, proteomics by mass spectrometry, and high-resolution imaging...
March 26, 2024: Cell Reports
https://read.qxmd.com/read/38536815/osbp-mediated-pi-4-p-cholesterol-exchange-at-endoplasmic-reticulum-secretory-granule-contact-sites-controls-insulin-secretion
#19
JOURNAL ARTICLE
Styliani Panagiotou, Kia Wee Tan, Phuoc My Nguyen, Andreas Müller, Affiong Ika Oqua, Alejandra Tomas, Anna Wendt, Lena Eliasson, Anders Tengholm, Michele Solimena, Olof Idevall-Hagren
Insulin is packaged into secretory granules that depart the Golgi and undergo a maturation process that involves changes in the protein and lipid composition of the granules. Here, we show that insulin secretory granules form physical contacts with the endoplasmic reticulum and that the lipid exchange protein oxysterol-binding protein (OSBP) is recruited to these sites in a Ca2+ -dependent manner. OSBP binding to insulin granules is positively regulated by phosphatidylinositol-4 (PI4)-kinases and negatively regulated by the PI4 phosphate (PI(4)P) phosphatase Sac2...
March 26, 2024: Cell Reports
https://read.qxmd.com/read/38536814/protocol-to-assess-bioenergetics-and-mitochondrial-fuel-usage-in-murine-autoreactive-immunocytes-using-the-seahorse-extracellular-flux-analyzer
#20
JOURNAL ARTICLE
Colleen L Mayberry, John J Wilson, Britney Sison, Chih-Hao Chang
Efficient metabolism, or the means by which cells produce energy resources, is critical for proper effector function. Here, we present a protocol for examining the bioenergetics and mitochondrial fuel utilization of primary murine autoreactive immunocytes using cellular metabolism-modulating drugs. We describe steps for plate calibration, isolation of primary immunocytes, and Seahorse assay plate preparation. We then detail procedures for performing the XF Cell Mito Stress Test followed by bioenergetics calculations and statistics...
March 25, 2024: STAR protocols
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