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https://www.readbyqxmd.com/read/28324043/reduced-transforming-growth-factor-beta-activity-in-the-endometrium-of-women-with-heavy-menstrual-bleeding
#1
J A Maybin, L Boswell, V J Young, W C Duncan, Hod Critchley
Context: Heavy menstrual bleeding (HMB) is common and incapacitating. Aberrant menstrual endometrial repair may result in HMB. The TGFβ superfamily contributes to tissue repair, but its role in HMB is unknown. Objective: We hypothesised that TGFβ1 is important for endometrial repair and women with HMB have aberrant TGFβ1 activity at menses. Participants/Setting: Endometrial biopsies were collected from women and menstrual blood loss objectively measured (HMB >80ml/cycle, normal menstrual bleeding, NMB <80ml)...
January 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323988/basement-membrane-laminin-%C3%AE-2-regulates-btb-dynamics-via-its-effects-on-f-actin-and-microtubule-mt-cytoskeletons-via-mtorc1-signaling
#2
Ying Gao, Haiqi Chen, Wing-Yee Lui, Will M Lee, C Yan Cheng
A local axis connects the apical ectoplasmic specialization (apical ES) at the Sertoli-spermatid interface, the basal ES at the blood-testis barrier (BTB), and the basement membrane across the seminiferous epithelium functionally in rat testes. As such, cellular events that take place across the epithelium such as spermiation and BTB remodeling that occur at the apical ES and the basal ES, respectively, at stage VIII of the cycle are coordinated. Herein, laminin α2, a structural component of the basement membrane, was found to regulate BTB dynamics...
January 16, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323919/steroids-regulate-cxcl4-in-the-human-endometrium-during-menstruation-to-enable-efficient-endometrial-repair
#3
J A Maybin, U Thiruchelvam, M Madhra, Ptk Saunders, Hod Critchley
Context: Repair of the endometrial surface at menstruation must be efficient to minimize blood loss and optimize reproductive function. The mechanism and regulation of endometrial repair remain undefined. Objective: To determine the presence/regulation of CXCL4 in the human endometrium, as a putative repair factor at menses. Patients/Setting: Endometrium was collected throughout the menstrual cycle from healthy women attending the gynecology department...
February 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323879/mir-181b-regulates-vascular-stiffness-age-dependently-in-part-by-regulating-tgf-%C3%AE-signaling
#4
Daijiro Hori, Brittany Dunkerly-Eyring, Yohei Nomura, Debjit Biswas, Jochen Steppan, Jorge Henao-Mejia, Hideo Adachi, Lakshmi Santhanam, Dan E Berkowitz, Charles Steenbergen, Richard A Flavell, Samarjit Das
BACKGROUND: Endothelial dysfunction and arterial stiffening play major roles in cardiovascular diseases. The critical role for the miR-181 family in vascular inflammation has been documented. Here we tested whether the miR-181 family can influence the pathogenesis of hypertension and vascular stiffening. METHODS AND RESULTS: qPCR data showed a significant decrease in miR-181b expression in the aorta of the older mice. Eight miR-181a1/b1-/- mice and wild types (C57BL6J:WT) were followed weekly for pulse wave velocity (PWV) and blood pressure measurements...
2017: PloS One
https://www.readbyqxmd.com/read/28319810/inhibitors-of-glut-slc2a-enhance-the-action-of-bcnu-and-temozolomide-against-high-grade-gliomas
#5
Alberto Azzalin, Giulia Nato, Elena Parmigiani, Francesca Garello, Annalisa Buffo, Lorenzo Magrassi
Glucose transport across glioblastoma membranes plays a crucial role in maintaining the enhanced glycolysis typical of high-grade gliomas and glioblastoma. We tested the ability of two inhibitors of the glucose transporters GLUT/SLC2A superfamily, indinavir (IDV) and ritonavir (RTV), and of one inhibitor of the Na/glucose antiporter type 2 (SGLT2/SLC5A2) superfamily, phlorizin (PHZ), in decreasing glucose consumption and cell proliferation of human and murine glioblastoma cells. We found in vitro that RTV, active on at least three different GLUT/SLC2A transporters, was more effective than IDV, a specific inhibitor of GLUT4/SLC2A4, both in decreasing glucose consumption and lactate production and in inhibiting growth of U87MG and Hu197 human glioblastoma cell lines and primary cultures of human glioblastoma...
March 17, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28319015/collection-storage-inspection-and-quality-control-of-platelet-concentrates-obtained-by-apheresis-the-situation-in-spain
#6
Azucena Castrillo, Teresa Jimenez-Marco, José L Arroyo, María L Jurado, Luis Larrea, Rosa M Maymo, Jorge Monge, Carmen Muñoz, Ángel Pajares, Marta Yáñez
BACKGROUND: Diverse variables are involved in apheresis platelet collection, processing and storage. This survey shows how these are realized in Spain. METHOD: An analysis of collected data was performed in a questionnaire completed by ten Transfusion Centers (TC) which perform between 50 and 520 apheresis procedures per month. This information comprises the procedures used to collect, inspect and store apheresis platelet concentrates (PC), and quality control data...
February 22, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28318536/chromobacterium-violaceum-infection-in-a-horse
#7
Márcia Elisa Hammerschmitt, Veronica Machado Rolim, Gustavo Geraldo Medina Snel, Franciele Maboni Siqueira, David Driemeier, Saulo Petinatti Pavarini
Chromobacterium violaceum is an opportunistic pathogen of mammals that produces characteristic violet pigment in bacterial culture. We report pneumonia and septicaemia caused by C. violaceum in a horse. Necropsy examination was performed on a 3-year-old Quarter Horse stallion with a history of recurrent episodes of pneumonia, fever, dyspnoea and sanguineous nasal discharge. The lungs were not collapsed, but they contained dark red foci mixed with white areas, and multiple nodules of firm consistency. Within the liver and kidney there were randomly distributed, multifocal, white pinpoint lesions (0...
March 16, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28318196/-paradoxical-reaction-to-antituberculosis-treatment-in-an-immunocompetent-girl-with-pulmonary-tuberculosis
#8
Ignacio Ruiz Del Olmo Izuzquiza, Claudia Orden Rueda, Laura Ochoa Gómez, Nuria Clavero Montañés, Enrique Berdún Chéliz, Carmelo Guerrero Laleona
Paradoxical reaction to antituberculosis treatment is rare in paediatric population. We report a 9-year-old girl with high fever and productive cough for the last three weeks. Tuberculine test and Quantiferon were positive, erythrocyte sedimentation rate was 64 mm/h, culture and polymerase chain reaction for M. tuberculosis negative, and chest X ray showed a widened right mediastinum. Tuberculosis was diagnosed, therefore treatment with standard doses of rifampicin, isoniazid, pyrazinamide and ethambutol was started...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28317802/port-site-infections-by-nontuberculous-mycobacterium-a-retrospective-clinico-microbiological-study
#9
Roumi Ghosh, Soumen Das, Asmita De, Harish Kela, Makhan Lal Saha, Prasanta Kumar Maiti
BACKGROUND: Port-site infection (PSI) is a prevailing, chronic, nagging, treatment refractory complication of laparoscopic surgery (LS). It neutralizes the advantages of minimally invasive surgery and increases morbidity, treatment cost of patient, leading to loss of confidence on operating surgeon. PSIs are preventable with appropriate preoperative, intraoperative, and postoperative measures. Atypical mycobacterium is most commonly associated with nonhealing postlaparoscopic wound infections, causing outbreaks or sporadic cases worldwide...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28316081/the-antidiabetic-drug-metformin-decreases-mitochondrial-respiration-and-tricarboxylic-acid-cycle-activity-in-cultured-primary-rat-astrocytes
#10
Michaela C Hohnholt, Eva-Maria Blumrich, Helle S Waagepetersen, Ralf Dringen
Metformin is an antidiabetic drug that is used daily by millions of patients worldwide. Metformin is able to cross the blood-brain barrier and has recently been shown to increase glucose consumption and lactate release in cultured astrocytes. However, potential effects of metformin on mitochondrial tricarboxylic acid (TCA) cycle metabolism in astrocytes are unknown. We investigated this by mapping (13) C labeling in TCA cycle intermediates and corresponding amino acids after incubation of primary rat astrocytes with [U-(13) C]glucose...
March 19, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28315952/kinetic-analysis-size-profiling-and-bioenergetic-association-of-dna-released-by-selected-cell-lines-in-vitro
#11
Janine Aucamp, Abel J Bronkhorst, Dimetrie L Peters, Hayley C Van Dyk, Francois H Van der Westhuizen, Piet J Pretorius
Although circulating DNA (cirDNA) analysis shows great promise as a screening tool for a wide range of pathologies, numerous stumbling blocks hinder the rapid translation of research to clinical practice. This is related directly to the inherent complexity of the in vivo setting, wherein the influence of complex systems of interconnected cellular responses and putative DNA sources creates a seemingly arbitrary representation of the quantitative and qualitative properties of the cirDNA in the blood of any individual...
March 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28315571/the-relationship-of-micronucleus-frequency-and-nuclear-division-index-with-coronary-artery-disease-syntax-and-gensini-scores
#12
Emrah İpek, Emrah Ermiş, Handan Uysal, Halit Kızılet, Selami Demirelli, Erkan Yıldırım, Sedat Ünver, Bircan Demir, Nergiz Kızılet
OBJECTIVE: We aimed to evaluate the relationship of micronucleus (MN) frequency and nuclear division index (NDI) with SYNTAX and Gensini scores and thrombolysis in myocardial infarction (TIMI) frame counts of coronary arteries in patients undergoing coronary angiography. METHODS: In a single-center prospective observational study, a total of 63 individuals, 48 consecutive patients with coronary artery disease (CAD) and 15 healthy people were included. Before coronary angiography (exposure to X-ray), blood samples were collected for lymphocyte cultures, MN and NDI measurements...
March 9, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28314783/umbilical-infections-in-foals-microbiological-investigation-and-management
#13
E Rampacci, F Passamonti, M Bottinelli, V Stefanetti, M Cercone, S Nannarone, R Gialletti, F Beccati, M Coletti, M Pepe
This study aims to investigate the bacteria involved in equine omphalitis and their susceptibility to antimicrobial drugs, and consequently to provide guidelines concerning the most suitable treatment protocol in accordance with the clinical, ultrasound and laboratory findings. Forty foals aged between one and 30 days were evaluated in the course of this investigation. An ultrasound examination of all umbilical remnants was carried out carefully in all foals; umbilical swabs were collected for bacteriological examination, and blood samples were collected for blood culture from 19 foals with fever and abnormal blood values...
March 17, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28306530/ascorbic-acid-does-not-modulate-potassium-currents-in-cultured-human-lymphocytes
#14
Saravanakumar Snekalatha, Praghalathan Kanthakumar
BACKGROUND: Ascorbic acid (AA) is known to modulate lymphocyte function, but the mechanism of action is not clearly understood. As voltage-gated potassium currents play an important role in lymphocyte function, the effect of AA on voltage-gated potassium currents was studied. METHODS: Peripheral blood mononuclear cells were cultured in the presence of increasing concentrations of AA (0, 0.125, 0.25, 0.5, and 1 mM). Potassium currents in resting lymphocytes were studied by whole cell patch clamp technique using a depolarizing protocol...
March 17, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28304404/interactions-between-th1-cells-and-tregs-affect-regulation-of-hepatic-fibrosis-in-biliary-atresia-through-the-ifn-%C3%AE-stat1-pathway
#15
Jie Wen, Ying Zhou, Jun Wang, Jie Chen, Wenbo Yan, Jin Wu, Junkai Yan, Kejun Zhou, Yongtao Xiao, Yang Wang, Qiang Xia, Wei Cai
Regulatory T cells (Tregs) and CD4(+) T helper (Th) cells have important roles in bile duct injury of biliary atresia (BA). However, their impacts on liver fibrosis are undefined. Between 2013 and 2016, 146 patients with various stages of BA were enrolled in this study. Peripheral blood, liver biopsy and lymph node samples were collected. Flow cytometry, magnetic cell sorting and immunostaining were used to characterize lymphocytes from BA patients. Deficiency of Tregs was observed along with increased Th1, Th2 and Th17 frequencies in the peripheral blood and livers of BA patients...
March 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28304236/increased-spontaneous-programmed-cell-death-is-associated-with-impaired-cytokine-secretion-in-peripheral-blood-mononuclear-cells-from-hepatitis-c-virus-positive-patients
#16
Abdulkarim Alhetheel, Ahmed Albarrag, Zahid Shakoor, Khalid Alswat, Ayman Abdo, Waleed Al-Hamoudi, Suliman Alomar
Peripheral blood mononuclear cells (PBMCs) play a critical role in clearing hepatitis C virus (HCV). PBMC defects have been linked with HCV infection; however, the underlying mechanisms remain obscure. We hypothesized that PBMCs of HCV-infected patients are more susceptible to programmed cell death (PCD), and are therefore unable to clear HCV. We compared spontaneous PBMC PCD and cytokine [interleukin (IL)-1, -6, -8, -10, and -12] secretion between untreated (naive) HCV(+) and treated [sustained responder (SR)] patients with HCV, and HCV(-) healthy controls...
March 17, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28303985/pattern-of-antimicrobial-drug-resistance-of-salmonella-typhi-and-paratyphi-a-in-a-teaching-hospital-in-islamabad
#17
Azmat Ali, Hafiz Awais Ali, Fazal Hussain Shah, Arslan Zahid, Hina Aslam, Benazir Javed
OBJECTIVE: To see the pattern of antimicrobial drug resistance among Salmonella serovars. METHODS: This longitudinal, observational study was conducted at Khan Research Laboratories Hospital, Islamabad, Pakistan, from May 2012 to December 2014. All patients presenting with typhoid fever with positive blood culture were included. Age, gender, salmonella serovar and sensitivity to 9 antimicrobial drugs were taken into account. The tested antimicrobial drugs were ampicillin, trimethoprim/sulphamethoxazole, chloramphenicol, nalidixic acid, ciprofloxacin, ofloxacin, levofloxacin, ceftriaxone and cefixime...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28303817/screening-of-invasive-fungal-infections-by-a-real-time-panfungal-pan-acf-polymerase-chain-reaction-assay-in-patients-with-haematological-malignancy
#18
Malini Rajinder Capoor, Shikha Puri, Hitesh Raheja, Ritin Mohindra, Dinesh Kumar Gupta, Pradeep Kumar Verma, Ranadeep Chowdhary
BACKGROUND: Invasive fungal infection (IFI) is a fatal infection in haematology patients. There is an urgent need for reliable screening methods facilitating timely diagnosis and treatment. A real-time panfungal polymerase chain reaction (PCR) assay based on TaqMan technology targeting 18S ribosomal RNA gene was used to screen whole blood specimen obtained from series of Haematology malignancy patients for IFIs. MATERIALS AND METHODS: The panfungal (Pan-ACF) assay was employed to investigate specimen from 133 patients in duplicate with suspected IFI...
January 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28302498/early-apoptosis-of-monocytes-induced-by-helicobacter-pylori-infection-through-multiple-pathways
#19
Ying Zhang, Hui Sun, Huilin Zhao, Xingxing Chen, Jiaojiao Li, Boqing Li
Only a small percentage of people infected with Helicobacter pylori (H. pylori) will develop overt chronic gastric diseases. To understand the pathological mechanism, the action of H. pylori on monocyte apoptosis was detected. H. pylori co-culturing with peripheral blood monocytes, THP-1 or U937 cells result in early apoptosis at 6, 12, and 24 h after infection. The phosphorylated Bad and JNK were increased, and Bcl-2 was declined at 6, 12, and 24 h in peripheral blood monocytes after H. pylori infection...
March 14, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28302075/renal-effects-of-metallothionein-induction-by-zinc-in-vitro-and-in-vivo
#20
Moritz Schanz, Lea Schaaf, Juergen Dippon, Dagmar Biegger, Peter Fritz, Mark Dominik Alscher, Martin Kimmel
BACKGROUND: Metallothionein (MTT) is an endogenous antioxidant that can be induced by both zinc (Zn) and ischemia. In kidneys, increased MTT expression exerts a putative protective role in diabetes and hypoxia. Our goal was to further investigate the behavior of MTT under the influence of Zn and hypoxia in vitro and in vivo. METHODS: MTT expression was measured in vitro in cell cultures of proximal tubular cells (LCC-PK1) by immune-histochemistry and real-time PCR after incubation with increasing concentrations of Zn under hypoxic and non-hypoxic conditions...
March 16, 2017: BMC Nephrology
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