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https://www.readbyqxmd.com/read/29874961/procyanidin-b2-prevents-lupus-nephritis-development-in-mice-by-inhibiting-nlrp3-inflammasome-activation
#1
Junhui He, Mingchong Sun, Sujian Tian
Lupus nephritis (LN) is a multifactorial event that contributes to the long-term mortality of systemic lupus erythematosus (SLE). Activation of NLRP3 inflammasome has been known to play a role in SLE pathogenesis. We evaluated the renal protection effects of procyanidin B2 (PCB2) and the involvement of NLRP3 in a mouse model involving MRL/lpr and MRL/MpJ mice. Kidney injury was evaluated by measuring the renal clinical and pathological features, renal immune complex deposition, and serum anti-double-stranded (anti-dsDNA) Abs...
January 1, 2018: Innate Immunity
https://www.readbyqxmd.com/read/29781134/response-letter-perplexing-role-of-galectin-9-in-lupus-experimental-models-comment-on-article-by-zeggar-et-al
#2
Jun Wada, Sonia Zeggar
We greatly appreciate Drs. Aditya K Panda and Bidyut K Das for their interests to our work reporting the beneficial effects of the deficiency of Lgals9 in pristine-induced lupus model of BALB/c mice(1). They have focused on the discrepancy of results between ours and recently published publication, repoting the protective effects of the administration of recombinant galectin-9 into BXSB/MpJ and NZB/W F1 mice(2). Since we identified galectin-9 and have been demonstrating the therapeutic efficacy of recombinant galectin-9 in nephrotoxic serum nephritis in Wistar Kyoto rats, diabetic nephropathy in db/db mice, and type 1 diabetes in NOD mice, we initially hypothesized that the deficiency of Lgals9 might cause the exacerbation of lupus or lupus nephritis in pristine-induced lupus model in BALB/c mice and MRL/Mpj-Faslpr /J mice...
May 21, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29706248/a-new-sign-allowing-diagnosis-in-the-pathologies-of-the-extensor-tendons-of-the-hand
#3
A Leti Acciaro, F Pilla, G Colzani, N Corradi
INTRODUCTION: The thorough knowledge of the anatomy of the extensor tendon system of the hand is crucial for clinical examination and detection of tendon injuries. The Juncturae between the EDCII and other extensor tendons presents different incidences, shapes ("r" or "y") and morphologies (Type I, II, III). The EIP does not receive connection. These characteristics may result in variable effects on extensor tendons during active finger movements. The purpose of this study is to investigate and describe a new sign helping diagnosis for injuries or pathologies of EIP and EDC index finger (EDC II), based on a cadaveric dissection and clinical observation...
June 2018: Injury
https://www.readbyqxmd.com/read/29684078/ovarian-mast-cells-migrate-toward-ovary-fimbria-connection-in-neonatal-mrl-mpj-mice
#4
Teppei Nakamura, Masataka Chihara, Osamu Ichii, Saori Otsuka-Kanazawa, Ken-Ichi Nagasaki, Yaser Hosny Ali Elewa, Osamu Tatsumi, Yasuhiro Kon
MRL/MpJ mice have abundant ovarian mast cells (MCs) as compared with other strains at postnatal day 0 (P0); however, they sharply decrease after birth. These ovarian MCs, particularly beneath the ovarian surface epithelium (SE), which express mucosal MC (MMC) marker, might participate in early follicular development. This study investigated the changes in spatiotemporal distribution of MCs in the perinatal MRL/MpJ mouse ovaries. At P0 to P7, the MCs were densely localized to the ovary, especially their caudomedial region around the ovary-fimbria connection...
2018: PloS One
https://www.readbyqxmd.com/read/29671873/t-cell-derived-ifn-%C3%AE-downregulates-protective-group-2-innate-lymphoid-cells-in-murine-lupus-erythematosus
#5
Mathis Düster, Martina Becker, Ann-Christin Gnirck, Malte Wunderlich, Ulf Panzer, Jan-Eric Turner
Innate lymphoid cells (ILCs) are important regulators of the immune response and play a crucial role in the restoration of tissue homeostasis after injury. GATA-3+ IL-13- and IL-5-producing group 2 innate lymphoid cells (ILC2s) have been shown to promote tissue repair in barrier organs, but despite extensive research on ILCs in the recent years, their potential role in autoimmune diseases is still incompletely understood. In the present study, we investigate the role of ILC2s in the MRL/MpJ-Faslpr (MRL-lpr) mouse model for severe organ manifestation of systemic lupus erythematosus (SLE)...
April 19, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29611821/galectin-9-inhibits-tlr7-mediated-autoimmunity-in-murine-lupus-models
#6
Santosh K Panda, Valeria Facchinetti, Elisaveta Voynova, Shino Hanabuchi, Jodi L Karnell, Richard N Hanna, Roland Kolbeck, Miguel A Sanjuan, Rachel Ettinger, Yong-Jun Liu
Uncontrolled secretion of type I IFN, as the result of endosomal TLR (i.e., TLR7 and TLR9) signaling in plasmacytoid DCs (pDCs), and abnormal production of autoantibodies by B cells are critical for systemic lupus erythematosus (SLE) pathogenesis. The importance of galectin-9 (Gal-9) in regulating various autoimmune diseases, including lupus, has been demonstrated. However, the precise mechanism by which Gal-9 mediates this effect remains unclear. Here, using spontaneous murine models of lupus (i.e., BXSB/MpJ and NZB/W F1 mice), we demonstrate that administration of Gal-9 results in reduced TLR7-mediated autoimmune manifestations...
May 1, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29593732/a-distinct-t-follicular-helper-cell-subset-infiltrates-the-brain-in-murine-neuropsychiatric-lupus
#7
Shweta Jain, Ariel Stock, Fernando Macian, Chaim Putterman
Neuropsychiatric symptoms in systemic lupus erythematosus (SLE) are not uncommon, yet the mechanisms underlying disease initiation and progression in the brain are incompletely understood. Although the role of T cells in other lupus target organs such as the kidney is well defined, which T cells contribute to the pathogenesis of neuropsychiatric SLE is not known. The present study was aimed at characterizing the CD4 T cell populations that are present in the choroid plexus (CP) of MRL/MpJ-fas lpr mice, the primary site of brain infiltration in this classic lupus mouse model which exhibits a prominent neurobehavioral phenotype...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29590230/duration-of-type-2-diabetes-is-a-predictor-of-elevated-plantar-foot-pressure
#8
Brooke Falzon, Cynthia Formosa, Liberato Camilleri, Alfred Gatt
AIMS: Elevated plantar pressure is considered a significant risk factor for ulceration in diabetes mellitus. The aim of this study was to determine whether duration of diabetes could affect plantar pressure in patients with no known significant comorbidity or foot pathology. METHODS: Participants with type 2 diabetes, but without known confounding factors that could alter peak pressure, were matched for age, weight, and gender and categorized into 3 groups of diabetes duration: group 1 (1-5 yr), group 2 (6-10 yr), and group 3 (11-15 yr)...
2018: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/29405701/maskless-hydrophilic-patterning-of-the-superhydrophobic-aluminum-surface-by-an-atmospheric-pressure-microplasma-jet-for-water-adhesion-controlling
#9
Jiyu Liu, Jinlong Song, Guansong Wang, Faze Chen, Shuo Liu, Xiaolong Yang, Jing Sun, Huanxi Zheng, Liu Huang, Zhuji Jin, Xin Liu
Superhydrophobic surfaces with hydrophilic patterns have great application potential in various fields, such as microfluidic systems and water harvesting. However, many reported preparation methods involve complicated devices and/or masks, making fabrication of these patterned surfaces time-consuming and inefficient. Here, we propose a highly efficient, simple, and maskless microplasma jet (MPJ) treatment method to prepare hydrophilic patterns such as dots, lines, and curves on superhydrophobic aluminum substrates...
February 28, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29383850/adoptive-transfer-of-cd3-t-cells-and-cd4-cd44-high-memory-t-cells-induces-autoimmune-pancreatitis-in-mrl-mpj-mice
#10
Luise Ehlers, Sarah Rohde, Saleh Ibrahim, Robert Jaster
The immunopathogenesis of autoimmune pancreatitis (AIP) is poorly understood. Here, we have used MRL/MpJ mice, a model of spontaneous AIP, to address the role of cellular autoimmune processes in the initiation and progression of the disease. Therefore, different T cell subpopulations were adoptively transferred from sick to still healthy (but susceptible) MRL/MpJ mice. Unpurified splenocytes and CD3+ T cells both efficiently induced AIP, while CD4+ and CD8+ T cells alone, as well as splenocytes from healthy mice, were insufficient to trigger the disease...
April 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29312840/relationship-between-the-intersesamoid-ligament-and-sesamoid-bones-in-cadaveric-feet-with-hallux-valgus
#11
Regina C Fiacco, Garen M Ream, Charlotte Wilson, R Shane Tubbs, Marios Loukas, Piotr B Kozlowski, Anthony C DiLandro, Kevin T Jules, Anthony V D'Antoni
There is heterogeneity in the literature regarding the anatomy, exact location, and definition of the intersesamoid ligament (IL). Anatomic knowledge of the IL and its variations are important for surgeons who undertake corrective surgery for hallux abducto valgus (HAV). The IL was dissected in 16 feet from 32 formalin-fixed cadavers (12 females, four males; mean age at death, 76.6 years) to examine its morphology. The length, width, and thickness of its constituent bands were recorded with a digital caliper...
November 3, 2017: Curēus
https://www.readbyqxmd.com/read/29240238/evaluation-of-microfiltration-and-heat-treatment-on-the-microbiological-characteristics-phenolic-composition-and-volatile-compound-profile-of-pomegranate-punica-granatum-l-juice
#12
Antonio Colantuono, Paola Vitaglione, Nadia Manzo, Giuseppe Blaiotta, Immacolata Montefusco, Andrea Marrazzo, Fabiana Pizzolongo, Raffaele Romano
BACKGROUND: Since processing technology and storage may influence the sensory and nutritional value as well as the shelf life of pomegranate juice (PJ), mild technologies based on microfiltration may be a promising alternative to heat treatments for fruit juice preservation. In this study, physicochemical and microbiological properties of raw (RPJ), microfiltered (MPJ) and cloudy pasteurized (PPJ) PJ were compared over a period of 4 weeks. RESULTS: Data demonstrated that microfiltration was comparable to pasteurization in guaranteeing microbiological stability of the juice, avoiding spoilage of the final product...
December 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29194431/characteristics-of-plantar-loads-during-walking-in-patients-with-knee-osteoarthritis
#13
Zhiwang Zhang, Lin Wang, Kaijun Hu, Yu Liu
BACKGROUND Knee osteoarthritis (KOA) is a common disease that can change the load on lower limbs during walking. Plantar loads in patients with KOA may provide a basis for clinical decisions regarding footwear and foot orthoses. This study aimed to compare plantar loads in females with and without KOA during gait. MATERIAL AND METHODS Plantar pressure during walking was recorded in 23 females with KOA and 23 females without KOA. Maximum force (MF), contact area (CA), and peak pressure (PP) were measured at 7 different regions underneath the foot, named heel (M1), midfoot (M2), first metatarsophalangeal joint (MPJ) (M3), second MPJ (M4), third to fifth MPJ (M5), hallux (M6), and lesser toes (M7)...
December 1, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29167408/conjugated-linoleic-acid-prevents-age-dependent-neurodegeneration-in-a-mouse-model-of-neuropsychiatric-lupus-via-the-activation-of-an-adaptive-response
#14
Antonio Monaco, Ida Ferrandino, Floriana Boscaino, Ennio Cocca, Luisa Cigliano, Francesco Maurano, Diomira Luongo, Maria Stefania Spagnuolo, Mauro Rossi, Paolo Bergamo
Oxidative stress is a key mediator of autoimmune/neurodegenerative disorders. The antioxidant/anti-inflammatory effect of a synthetic conjugated linoleic acid (CLA) mixture in MRL/MpJ-Fas lpr mice (MRL/ lpr ), an animal model of neuropsychiatric lupus, was previously associated with the improvement of nuclear factor-E2-related factor 2 (Nrf2) defenses in the spleen and liver. However, little is known about the neuroprotective ability of a CLA mixture. This study investigated the age-dependent progression of oxidative stress and the hyperactivation of redox-sensitive compensatory pathways (macroautophagy, Nrf2) in old/diseased MRL/ lpr mice brains and examines the effect produced by dietary CLA supplementation...
January 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29116018/tissue-specific-role-of-rhbdf2-in-cutaneous-wound-healing-and-hyperproliferative-skin-disease
#15
Vishnu Hosur, Bonnie L Lyons, Lisa M Burzenski, Leonard D Shultz
OBJECTIVE: Gain-of-function (GOF) mutations in RHBDF2 cause tylosis. Patients present with hyperproliferative skin, and keratinocytes from tylosis patients' skin show an enhanced wound-healing phenotype. The curly bare mouse model of tylosis, carrying a GOF mutation in the Rhbdf2 gene (Rhbdf2cub ), presents with epidermal hyperplasia and shows accelerated cutaneous wound-healing phenotype through enhanced secretion of the epidermal growth factor receptor family ligand amphiregulin. Despite these advances in our understanding of tylosis, key questions remain...
November 7, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29039226/reconstruction-of-traumatic-dorsal-loss-of-the-thumb-four-different-surgical-approaches
#16
Roberto Adani, Raffaele Mugnai, Giovanna Petrella
BACKGROUND: This article outlines our methods for thumb reconstruction following dorsal skin loss injury located between the metacarpophalangeal joint (MPj) and the entire nail affecting skin, nail, tendon, and bone in different combinations but with intact sensate palmar skin. METHODS: Between 1990 and 2015, 24 patients were treated for dorsal thumb defects using 4 different surgical techniques. Five cases of dorsal compound traumatic loss were reconstructed by custom-made dorsal great toe transfer...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28936588/technical-details-and-results-of-a-modified-end-to-side-technique-of-pancreatojejunostomy-a-personal-series-of-100-patients
#17
Luca Morelli, Gregorio Di Franco, Simone Guadagni, Matteo Palmeri, Niccolò Furbetta, Desirée Gianardi, Marco Del Chiaro, Giulio Di Candio, Franco Mosca
BACKGROUND: The treatment of pancreatic stump is a critical step of pancreatoduodenectomy (PD) because leaks from this anastomosis incur major morbidity and mortality. We describe the technical details of a modified end-to-side pancreatojejunostomy (mPJ), and report on the outcome of the first 100 patients. METHODS: From October 2008 to June 2017, 424 pancreatic resections were performed, of which 203 were PD. The mPJ was introduced in November 2010 and used in 100 consecutive patients, by a single surgeon...
December 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28934385/hearing-loss-without-overt-metabolic-acidosis-in-atp6v1b1-deficient-mrl-mice-a-new-genetic-model-for-non-syndromic-deafness-with-enlarged-vestibular-aqueducts
#18
Cong Tian, Leona H Gagnon, Chantal Longo-Guess, Ron Korstanje, Susan M Sheehan, Kevin K Ohlemiller, Angela D Schrader, Jaclynn M Lett, Kenneth R Johnson
Mutations of the human ATP6V1B1 gene cause distal renal tubular acidosis (dRTA; OMIM #267300) often associated with sensorineural hearing impairment; however, mice with a knockout mutation of Atp6v1b1 were reported to exhibit a compensated acidosis and normal hearing. We discovered a new spontaneous mutation (vortex, symbol vtx) of Atp6v1b1 in an MRL/MpJ (MRL) colony of mice. In contrast to the reported phenotype of the knockout mouse, which was developed on a primarily C57BL/6 (B6) strain background, MRL-Atp6v1b1vtx/vtx mutant mice exhibit profound hearing impairment, which is associated with enlarged endolymphatic compartments of the inner ear...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28906016/cxcl10-is-upregulated-in-synovium-and-cartilage-following-articular-fracture
#19
Bridgette D Furman, Collin L Kent, Janet L Huebner, Virginia B Kraus, Amy L McNulty, Farshid Guilak, Steven A Olson
The objective of this study was to investigate the expression of the chemokine CXCL10 and its role in joint tissues following articular fracture. We hypothesized that CXCL10 is upregulated following articular fracture and contributes to cartilage degradation associated with post-traumatic arthritis (PTA). To evaluate CXCL10 expression following articular fracture, gene expression was quantified in synovial tissue from knee joints of C57BL/6 mice that develop PTA following articular fracture, and MRL/MpJ mice that are protected from PTA...
April 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28870174/local-cd34-positive-capillaries-decrease-in-mouse-models-of-kidney-disease-associating-with-the-severity-of-glomerular-and-tubulointerstitial-lesions
#20
Md Abdul Masum, Osamu Ichii, Yaser Hosny Ali Elewa, Teppei Nakamura, Yasuhiro Kon
BACKGROUND: The renal vasculature plays important roles in both homeostasis and pathology. In this study, we examined pathological changes in the renal microvascular in mouse models of kidney diseases. METHODS: Glomerular lesions (GLs) in autoimmune disease-prone male BXSB/MpJ-Yaa (Yaa) mice and tubulointerstitial lesions (TILs) in male C57BL/6 mice subjected to unilateral ureteral obstruction (UUO) for 7 days were studied. Collected kidneys were examined using histopathological techniques...
September 4, 2017: BMC Nephrology
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