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Marlen Vitales-Noyola, Rita Martínez-Martínez, Juan P Loyola-Rodríguez, Lourdes Baranda, Perla Niño-Moreno, Roberto González-Amaro
BACKGROUND: Periodontal disease is chronic inflammatory process that affects the attachment structures of the teeth and constitutes a significant cause of tooth loss in adults. Although different bacteria play an important role in the triggering of this condition, the progression and severity of the disease are strongly affected by the host immune response, which is under the control of different immune-regulatory mechanisms, including T regulatory (Treg) cells. The aim of this study was to assess the frequency and function of CD69(+) Treg lymphocytes in patients with chronic periodontal disease...
October 19, 2016: Journal of Oral Pathology & Medicine
Alberto de Castro Pochini, Eliane Antonioli, Daniella Zanetti Bucci, Luiz Roberto Sardinha, Carlos Vicente Andreoli, Mario Ferretti, Benno Ejnisman, Anna Carla Goldberg, Moisés Cohen
Objective: To evaluate growth factors and cytokines in samples of platelet-rich plasma obtained by three different centrifugation methods. Methods: Peripheral blood of six individuals with no hematological diseases, aged 18 to 68 years, was drawn to obtain platelet-rich plasma, using the open method and commercial columns by Medtronic and Biomet. The products obtained with the different types of centrifugation were submitted to laboratory analysis, including pro-inflammatory cytokines and chemokines by flow cytometry assays, the concentration of fibroblast growth factors-2 (FGF-2) and transforming growth factor-beta1 (TGF-β1)...
July 2016: Einstein
Rikki A Cannioto, Lara E Sucheston-Campbell, Shalaka Hampras, Ellen L Goode, Keith Knutson, Roberta Ness, Francesmary Modugno, Paul K Wallace, J Brian Szender, Paul Mayor, Chi-Chen Hong, Janine M Joseph, Grace Friel, Warren Davis, Mary Nesline, Kevin H Eng, Robert P Edwards, Bridget Kruszka, Kristina Schmitt, Kunle Odunsi, Kirsten B Moysich
OBJECTIVE: There is a mounting body of evidence demonstrating higher percentages of regulatory T (Treg) cells in the peripheral blood of patients with cancer in comparison to healthy controls, but there is a paucity of epidemiological literature characterizing circulating Treg cells among patients with epithelial ovarian cancer (EOC). To investigate the role of peripheral Treg cells in ovarian neoplasms, we conducted a case-control study to characterize circulating concentrations of Treg cells among patients with EOC, women with benign ovarian conditions, and healthy controls without a history of cancer...
October 18, 2016: International Journal of Gynecological Cancer
Ana Rosa Cunha, Jenifer D'El-Rei, Fernanda Medeiros, Bianca Umbelino, Wille Oigman, Rhian M Touyz, Mario F Neves
BACKGROUND: Epidemiological studies demonstrate an inverse association between serum magnesium and incidence of cardiovascular disease. Diuretics commonly cause hypomagneseamia. METHOD: We evaluated effects of magnesium supplementation on blood pressure (BP) and vascular function in thiazide-treated hypertensive women in a randomized, double-blind, clinical trial. Hypertensive women (40-65 years) on hydrochlorothiazide and mean 24-h BP at least 130/80 mmHg were divided into placebo and supplementation (magnesium chelate 600 mg/day) groups...
October 18, 2016: Journal of Hypertension
Osman Melih Topcuoğlu, Muşturay Karçaaltıncaba, Deniz Akata, Mustafa Nasuh Özmen
PURPOSE: We aimed to determine the intra- and interobserver agreement on the software analysis of very low dose hepatic perfusion CT (pCT). METHODS: A total of 53 pCT examinations were obtained from 21 patients (16 men, 5 women; mean age, 60.4 years) with proven liver metastasis from various primary cancers. The pCT examinations were analyzed by two readers independently and perfusion parameters were noted for whole liver, whole metastasis, metastasis wall, and normal-looking liver (liver tissue without metastasis) in regions of interest (ROIs)...
October 19, 2016: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
Umit Kervan, Sinan Sabit Kocabeyoglu, Dogan Emre Sert, Emre Aygün, Kemal Kavasoglu, Mehmet Karahan, Ertekin Utku Unal, Mustafa Pac
OBJECTIVES: The common femoral artery is the standard site for immediate vascular access when initiating adult venoarterial extracorporeal membrane oxygenation. However, this approach is fraught with problems such as femoral artery occlusion, distal limb ischemia, reperfusion injury resulting in compartment syndrome, retroperitoneal hemorrhage, thrombosis, embolization, and most importantly, pulmonary edema. Here, we show our preference of using the subclavian artery with a side graft as a different cannulation technique for outflow of extracorporeal membrane oxygenation, which can avoid complications associated with different access techniques...
October 14, 2016: Experimental and Clinical Transplantation
Katarzyna Sznurkowska, Anton Żawrocki, Jacek Sznurkowski, Maciej Zieliński, Piotr Landowski, Katarzyna Plata-Nazar, Ewa Iżycka-Świeszewska, Piotr Trzonkowski, Agnieszka Szlagatys-Sidorkiewicz, Barbara Kamińska
BACKGROUND/AIMS: To determine the proportion of T-regulatory cells (CD4(+)CD25(high)FOXP3(+) cells) in peripheral blood and the number of FOXP3(+) cells in intestinal mucosa of children with inflammatory bowel disease (IBD), and to verify whether these parameters correlate with the activity of the disease. MATERIAL AND METHODS: 24 patients newly diagnosed for IBD were included in the study: ulcerative colitis (UC; n = 13) and Crohn's disease (CD; n = 11). Seventeen healthy controls (HC) and 16 patients with irritable bowel syndrome (IBS) served as a control group for peripheral and intestinal Tregs assessment, respectively...
October 19, 2016: Immunological Investigations
E A Devyatova, K A Tsaturova, E V Vartanyan
Many of the uterine infertility factors are associated with chronic endometritis. Its prevalence reaches 92.6%. Quality of endometrial transformation during the "implantation window" is the basis of successful fertility. In our retrospective comparative study of 101 in vitro fertilization (IVF) cycles, the efficacy of transvaginal Doppler ultrasound (TVDUS) in predicting successful implantation was evaluated. Inclusion criteria were as follows: age younger than 41 years and good quality of embryos. Exclusion criteria were as follows: 41 and older age, poor quality of embryos and uterine cavity lesions...
October 2016: Gynecological Endocrinology
Hao-Lin Shen, Shu-Ping Yang, Kang-Jian Wang, Bei-Lei Huang, Wen-Bao Huang, Jin-Zhi Wu, Guo-Rong Lv
OBJECTIVE: Improvement in regional blood flow has been shown to ameliorate diabetic gastroparesis. We compared the gastric blood supply in diabetic patients with gastroparesis, with that in healthy subjects, by using contrast-enhanced ultrasound (CEUS). METHODS: Thirty healthy subjects and forty patients with diabetic gastroparesis were enrolled. The CEUS parameters of greater curvatures of the antrum (GCOA) and lesser curvatures of antrum (LCOA), including peak intensity (PI) and the area under the curve (AUC), were compared between the two groups...
October 19, 2016: British Journal of Radiology
Aashish Kumar Sharma, R P Agrawal, J K Sharma, Ritvik Agrawal, Surendra Kumar, Kunal Thackar, Kailash Chandra Saini
OBJECTIVE: Vitamin D deficiency may be responsible for endothelial dysfunction which in turn affects the onset and progression of vascular disease including coronary artery disease and its risk factor, directly or indirectly through various mechanisms. This study was undertaken to find out association between vitamin D and endothelial dilatation of brachial artery, which may help to suggest possible underlying mechanisms and may be of clinical importance in planning preventive and therapeutic strategies...
July 2016: Journal of the Association of Physicians of India
Anna Yu Alekseeva, Larisa V Kameneva, Svetlana V Kostyuk, Natalia N Veiko
Oxidized cell-free DNA acts as a stress signal molecule and triggers an adaptive response in human cells. Various membrane DNA recognizing receptors are known as potential sensors for such DNA fragments. In order to clarify which of these sensors are able to interact with cfDNA fragments, circulating in human blood flow in heath and disease, we studied the influence of various cfDNA types on endothelial cells. We incubated these fragments at a physiologically optimal concentration with HUVEC cells for 3-24 h and detected the expression of either TLR9 or AIM2, RIG1 and STING receptors at mRNA and protein levels...
2016: Advances in Experimental Medicine and Biology
Xin Long, Jian Wang, Jian-Ping Zhao, Hui-Fang Liang, Peng Zhu, Qi Cheng, Qian Chen, Yan-Hui Wu, Zhan-Guo Zhang, Bi-Xiang Zhang, Xiao-Ping Chen
The function of the spleen in tumor development has been investigated for years. The relationship of the spleen with hepatocellular carcinoma (HCC), a huge health burden worldwide, however, remains unknown. The present study aimed to examine the effect of splenectomy on the development of HCC and the possible mechanism. Mouse hepatic carcinoma lines H22 and Hepa1-6 as well as BALB/c and C57 mice were used to establish orthotopic and metastatic mouse models of liver cancer. Mice were divided into four groups, including control group, splenectomy control group (S group), tumor group (T group) and tumor plus splenectomy group (T+S group)...
October 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
Puneet Kaur Randhawa, Amteshwar Singh Jaggi
Remote ischemic preconditioning (RIPC) treatment strategy is a breakthrough in the field of cardiovascular pharmacology as it has the potential to attenuate myocardial ischemia-reperfusion injury. However, the underlying intracellular pathways have not been widely explored. The present study intends to explore the possible role of TRPV1 channels in mediating remote hind limb preconditioning-induced cardioprotection. Remote hind limb preconditioning stimulus (4 cycles in succession) was delivered by tying the blood pressure cuff at the inguinal level of the rat...
October 17, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
Duygu Tosun, Norbert Schuff, Gil D Rabinovici, Nagehan Ayakta, Bruce L Miller, William Jagust, Joel Kramer, Michael M Weiner, Howard J Rosen
OBJECTIVE: To compare the values of arterial spin-labeled (ASL) MRI and fluorodeoxyglucose (FDG) PET in the diagnosis of behavioral variant of frontotemporal dementia (bvFTD) and Alzheimer's disease (AD). METHODS: Partial least squares logistic regression was used to identify voxels with diagnostic value in cerebral blood flow (CBF) and cerebral metabolic rate of glucose (CMRgl) maps from patients with bvFTD (n = 32) and AD (n = 28), who were compared with each other and with cognitively normal controls (CN, n = 15)...
October 2016: Annals of Clinical and Translational Neurology
Alberto Mansur Ghetti, Luiz Gustavo Bruno Siqueira, Eduardo Kenji Nunes Arashiro, Miller Pereira Palhao, Felipe Zandonadi Brandao, Joao Henrique Moreira Viana
BACKGROUND: Removal of the follicular content by ultrasound-guided transvaginal follicle aspiration (TVFA) may fail to induce immediate atresia and loss of function, resulting in the occurrence of residual follicles (RF). The aims of this study were to characterize the blood flow in RF and to determine the effects of the treatment with estradiol benzoate on RF fate. Lactating, cyclic Holstein-Gir crossbred cows were used. In Experiment 1, follicular wave emergence (D0) was synchronized in cows (n = 10) and follicular growth was then monitored by transrectal ultrasonography from D0 to D8, followed by TVFA of the largest follicle present on the ovaries 24 h later...
2016: Journal of Animal Science and Biotechnology
Shatha Hussain Ali, Salman Hussain Assi, Fadhil S Hussien
Hypertension (HTN) is one of the most common sequelae of chronic kidney disease (CKD) in children. Dialysis-related HTN is predominantly caused by chronic volume overload, and as such the blood pressure (BP) can be reduced and/or brought down to normal in a sizable number of patients with improved salt and fluid balance. This study was conducted to assess the prevalence of HTN among children on hemodialysis (HD) and to evaluate the correlation of HTN with some demographic data. This is a prospective study performed on forty pediatric patients with CKD receiving maintenance HD in three centers in Baghdad...
September 2016: Saudi Journal of Kidney Diseases and Transplantation
Ivana Milosevic
A 76-years old man presented with leucocytosis (86x109/l), fever, pneumonia and significant weight loss. He had a history of chronic lymphocytic leukemia diagnosed five years earlier and he responded with partial remission to the treatment with continuous low doses of chlorambucil. Analysis of blood smear, bone marrow aspiration and bone marrow biopsy revealed predomination of small lymphocytes, but 22% of cells were blasts negative to cytochemical stainings (Figure 1). Flow cytometric analysis showed two distinct populations: 65% of cells was small to moderate in size, CD19+, CD45+, CD5+, CD20+/-, but 30% of cells were large, CD34+, CD13+, HLA DR+, CD65+, CD45+, MPO weakly positive and CD33, CD14, CD15, CD16 negative...
October 18, 2016: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
J C Pang, P A Robinson, K M Aquino, N Vasan
The effects of astrocytic dynamics on the blood oxygen-level dependent (BOLD) response are modeled. The dynamics are represented via an astrocytic response function that approximates the effects of astrocytic activity, including delay between neural activity and hemodynamic response. The astrocytic response function is incorporated into a spatiotemporal hemodynamic model to predict the BOLD response measured using functional magnetic resonance imaging (fMRI). Adding astrocytic dynamics is shown to significantly improve the ability of the model to robustly reproduce the spatiotemporal properties of the experimental data such as characteristic frequency and time-to-peak...
October 14, 2016: NeuroImage
Hidehito Kimura, Masaaki Taniguchi, Tatsuya Mori, Kohkichi Hosoda, Eiji Kohmura
We present a rare case of a patient suffering temporary aphasia after an extracranial-to-intracranial (EC-IC) bypass surgery, which was shown as a transient hypointense lesion on diffusion-weighted imaging (DWI) with increased apparent diffusion coefficient (ADC) value, evidence of postoperative hyperperfusion. Postoperative hyperperfusion syndrome after EC-IC bypass causing temporary neurological deterioration has been reported rarely as isosignal intensity on DWI with hyperintense lesion on T2-weighted image and fluid-attenuated inversion recovery (FLAIR) image as an expression of vasogenic edema...
October 14, 2016: World Neurosurgery
Yuandong Li, Woo June Choi, Wan Qin, Utku Baran, Lauren M Habenicht, Ruikang K Wang
BACKGROUND: Arteriogenesis describes the active growth of the pre-existing collateral arterioles, which is a crucial tissue-saving process in occlusive vascular diseases. NEW METHOD: We propose to use optical coherence tomography (OCT)-based microangiography (OMAG) to monitor arteriogenesis following artery transection in mouse ear and focal stroke in mouse brain. RESULTS: Our longitudinal mouse ear study shows that the growth phase of arteriogenesis, indicated by changes in collateral vessel diameter and velocity, occurs between 12-24hours after vessel occlusion...
October 14, 2016: Journal of Neuroscience Methods
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