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Camyla Alves Leonel, William Gustavo Lima, Michelli Dos Santos, Ariane Coelho Ferraz, Alex Gutterres Taranto, José Carlos de Magalhães, Luciana Lara Dos Santos, Jaqueline Maria Siqueira Ferreira
Dengue virus (DENV) infection can lead to a wide range of clinical manifestations, including fatal hemorrhagic complications. There is a need to find effective pharmacotherapies to treat this disease due to the lack of specific immunotherapies and antiviral drugs. That said, the DENV NS2B/NS3pro protease complex is essential in both the viral multiplication cycle and in disease pathogenesis, and is considered a promising target for new antiviral therapies. Here, we performed a systematic review to evaluate the pharmacophoric characteristics of promising compounds against NS2B/NS3pro reported in the past 10 years...
November 16, 2017: Archives of Virology
Ashish Anil Sule, Chaozer Er, Claudia Y X Chong, Han Xin Chin, Tay Jam Chin
This study aims to determine the association of residual venous obstruction (RVO) with recurrent venous thromboembolism (VTE). A retrospective cohort study was conducted determining if RVO on ultrasonography is associated with recurrent VTE in a Singaporean population. The subjects were identified from the Vascular Diagnostic Laboratory patients' record of Tan Tock Seng Hospital (TTSH), Singapore between 2008 and 2013. All the patients included had RVO after 3 months of anticoagulation. Data such as age, gender, race, thrombus location, etiology, history of malignancy, thrombophilia screen, treatment duration, and follow-up were recorded for analysis...
December 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
Aleksandra Milewska, Paulina Nowak, Katarzyna Owczarek, Artur Szczepanski, Miroslaw Zarebski, Agnieszka Hoang-Bujnowicz, Krzysztof Berniak, Jacek Wojarski, Slawomir Zeglen, Zbigniew Baster, Zenon Rajfur, Krzysztof Pyrc
First steps of human coronavirus NL63 (HCoV-NL63) infection were previously described. The virus binds to target cells by heparan sulfate proteoglycans, and interacts with the ACE2 protein. Subsequent events, including virus internalization and trafficking, remain to be elucidated. In this study, we mapped the process of HCoV-NL63 entry into LLC-Mk2 cell line and ex vivo 3D tracheobronchial tissue.Using a variety of techniques we have shown that HCoV-NL63 virions require endocytosis for successful entry to the LLC-MK2 cells, and interaction between the virus and the ACE2 molecule triggers recruitment of clathrin...
November 15, 2017: Journal of Virology
J Lizer, S Velineni, A Weber, M Krecic, P Meeus
BACKGROUND: Leptospirosis in dogs is a disease of global importance. Early detection and appropriate therapeutic intervention are necessary to resolve infection and prevent zoonotic transmission. However, its diagnosis is hindered by nonspecific clinical signs and lack of rapid diagnostic tests of early infection. Recently, 2 rapid point-of-care tests (WITNESS Lepto [WITNESS Lepto, Zoetis LLC, Kalamazoo, MI, USA] and SNAP Lepto [SNAP Lepto, IDEXX Laboratories, Westbrook, ME, USA]) for detection of Leptospira-specific antibodies in canine sera were developed...
November 13, 2017: Journal of Veterinary Internal Medicine
Abdel Jelil Njouendou, Manuel Ritter, Winston Patrick Chounna Ndongmo, Chi Anizette Kien, Gandjui Tchamatchoua Victor Narcisse, Fanny Fri Fombad, Dizzle Bita Tayong, Kenneth Pfarr, Laura E Layland, Achim Hoerauf, Samuel Wanji
BACKGROUND: Approximately 114 million people are infected with Mansonella perstans in large proportions of Africa. In contrast to other filariae that infect humans, M. perstans-infected individuals show no distinct pathology or specific clinical picture, indicating a well-tuned adaptation to the host. In addition, since M. perstans adult worms reside in serous cavities which are difficult to access, research has been hindered and there is a paucity of knowledge about the biology of M...
November 10, 2017: Parasites & Vectors
Ali Ahmet Sirin, Ibrahim Erdim, Omer Erdur, Alperen Sirin
BACKGROUND: In modern rhinoplasty, septal cartilage is the most commonly used graft material. It is a big challenge if septal cartilage is insufficient. We present an alternative technique named the "rabbit flap," created from the cephalic portion of the lower lateral cartilage to show its effectiveness on nasolabial angle, nasal axis deviation, and nasal dorsal line. METHODS: An alternative flap, called a "rabbit flap," is constituted from the cephalic portion of the lower lateral cartilage (LLC)...
November 9, 2017: Aesthetic Plastic Surgery
Elisabeth Müller, Panagiotis F Christopoulos, Sanjib Halder, Anna Lunde, Kahsai Beraki, Martin Speth, Inger Øynebråten, Alexandre Corthay
Tumor-associated macrophages may either promote or suppress tumor growth depending on their activation status. Interferon-γ (IFN-γ) has been identified as a key factor for inducing tumoricidal M1 phenotype in macrophages. However, it remains unclear whether IFN-γ is sufficient or if additional stimuli are required. Here, we tested IFN-γ and a panel of toll-like receptor (TLR) agonists for the ability to activate murine macrophages toward a tumoricidal M1 phenotype. The following TLR ligands were used: TLR1/TLR2 agonist Pam3CSK4, TLR2/TLR6 agonist lipotechoic acid, TLR3 agonist poly(I:C), TLR4 agonist lipopolysaccharide (LPS), TLR5 agonist flagellin, TLR7 agonist CL264, and TLR9 agonist CpG...
2017: Frontiers in Immunology
Elizabeth E Halvorson, Doug Case, Joseph A Skelton, Michael C McCrory
OBJECTIVES: Pediatric obesity is highly prevalent and has been associated with poor outcomes for hospitalized children. Vascular access is essential in critically ill patients. The aim of this study was to evaluate whether critically ill children with obesity are more likely to undergo vascular device insertion (excluding peripheral IV catheters) and develop related complications. DESIGN: Multi-institutional retrospective observational cohort study. SETTING: Ninety-four U...
November 7, 2017: Pediatric Critical Care Medicine
Lang He, Chaofen Zhao, Yunxiang Li, Guocheng Du, Kang Liu, Dandan Cui, Lina Tang, Xun Wu, Shimin Wen, Hong Chen
Antiangiogenic therapy, as a new anticancer method, can improve the anticancer effect of traditional therapies. Different antiangiogenic drugs may have different vascular normalization time windows. Whether the antiangiogenic treatment is within the vascular normalization time window is very important in the treatment of cancers. Previous studies have indicated that recombinant human endostatin (rh‑ES) can transiently normalize tumor microvessels. Yet the molecular mechanism and the time window of rh‑ES remains unclear...
October 24, 2017: Molecular Medicine Reports
Xue Chen, Xibing Zhuang, Qi Zhang, Youjun Luo, Sujuan Yuan, Tiankui Qiao
We investigated whether Analgecine treatment enhanced the antitumor response of radiotherapy in non-small cell lung cancer (NSCLC) cells. Lewis lung carcinoma (LLC) xenograft mice treated with Analgecine plus irradiation showed reduced tumor growth and increased survival. Tumor cell apoptosis was enhanced by Analgecine, based on TUNEL assays. It also increased plasma levels of pro-inflammatory cytokines (IL-6, IL-12, and IFN-γ) and decreased anti-inflammatory cytokines (TGFβ and IL-10), suggesting an enhanced immune response...
October 6, 2017: Oncotarget
Xiangyun Zhu, Jiaping Gu, Hongxian Qian
INTRODUCTION: Esculetin was identified to inhibit cell proliferation and induce apoptosis or cell cycle arrest in several cancer cell lines. However, the effect of esculetin on lung cancer remains elusive. METHODS: The anti-proliferative role of esculetin in murine Lewis lung carcinoma (LLC) cells was evaluated by 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) and colony formation assays. BALB/c mice were subcutaneously injected with LLC cells to investigate the inhibitory effect of esculetin on the growth of lung cancer xenograft...
November 3, 2017: Archivos de Bronconeumología
Nadezhda Mironova, Olga Patutina, Evgenyi Brenner, Alexander Kurilshikov, Valentin Vlassov, Marina Zenkova
Recently, pancreatic RNase A was shown to inhibit tumor and metastasis growth that accompanied by global alteration of miRNA profiles in the blood and tumor tissue (Mironova et al., 2013). Here, we performed a whole transcriptome analysis of murine Lewis lung carcinoma (LLC) after treatment of tumor-bearing mice with RNase A. We identified 966 differentially expressed transcripts in LLC tumors, of which 322 were upregulated and 644 were downregulated after RNase A treatment. Many of these genes are involved in signaling pathways that regulate energy metabolism, cell-growth promoting and transforming activity, modulation of the cancer microenvironment and extracellular matrix components, and cellular proliferation and differentiation...
October 3, 2017: Oncotarget
Ana C R Gonçalves, Zumira A Carneiro, Carolina G Oliveira, Amanda Danuello, Wendell Guerra, Ronaldo J Oliveira, Francis B Ferreira, Laudimir L W Veloso-Silva, Fernanda A H Batista, Júlio C Borges, Sérgio de Albuquerque, Victor M Deflon, Pedro I S Maia
New complexes of composition [MX(HL1)] (M = Pt(II), Pd(II), X = Cl(-) or I(-)) and [MX(L1)] (M = Au(III), X = Cl(-); M = Pt(II), Pd(II), X = PPh3) have been synthesized using a potentially tridentate thiosemicarbazone (H2L1) containing an additional oxime binding site. Among other analytical methods, all the seven complexes have been structurally characterized by single crystal X-ray diffractometry. Interesting structural features such as the influence of the halide ligands on hydrogen bonds and the formation of supramolecular structures for the phosphine derivatives are discussed...
December 1, 2017: European Journal of Medicinal Chemistry
Kristopher J Abbate, Melanie D Hingle, Julie Armin, Peter Giacobbi, Judith S Gordon
BACKGROUND: Successful recruitment of participants to mobile health (mHealth) studies presents unique challenges over in-person studies. It is important to identify recruitment strategies that maximize the limited recruitment resources available to researchers. OBJECTIVE: The objective of this study was to describe a case study of a unique recruitment process used in a recent mHealth software app designed to increase smoking cessation among weight-concerned women smokers...
November 3, 2017: JMIR Research Protocols
Yoshiyuki Hattori, Takuto Kikuchi, Mari Nakamura, Kei-Ichi Ozaki, Hiraku Onishi
It has been reported that suppression of protein kinase N3 (PKN3) expression in vascular and lymphatic endothelial cells results in the inhibition of tumor progression and lymph node metastasis formation. The present study investigated whether combination therapy of small interfering RNA (siRNA) against PKN3 and doxorubicin (DXR) could increase therapeutic efficacy against liver and lung metastases. In vitro transfection of PKN3 siRNA into PKN3-positive MDA-MB-231, LLC, and Colon 26 cells and PKN3-negative MCF-7 cells did not inhibit cell growth and did not increase sensitivity to DXR...
November 2017: Oncology Letters
Nella Bieszk, Michael Grabner, Wenhui Wei, John Barron, Ralph Quimbo, Tingjian Yan, Beth Biel, James W Chu
BACKGROUND: In patients with type 2 diabetes (T2D) with poor glycemic control, there is an unmet need for treatment optimization involving the initiation and/or intensification of insulin therapy, which is often delayed because of clinical inertia. Educational initiatives that target patients and physicians might be one way to address this need. OBJECTIVE: To evaluate the effectiveness of educational materials mailed to physicians and their patients in affecting initiation of insulin therapy and other health care outcomes...
November 2017: Journal of Managed Care & Specialty Pharmacy
Houda Hamed, Fatma Chaari, Zied Ghannoudi, Abdelfattah ElFeki, Semia Chaabouni Ellouz, Ahmed Gargouri
Carbon tetrachloride (CCl4) is a xenobiotic present in the environment, can cause harmful effects on human health. In the present study, we attempted to elucidate the cardiopreventive potential of the fermented camel milk by lactococcus lactis subsp cremoris (FCM-LLC) against the toxic effects of acute exposure to CCl4 on heart tissue of mice. Twenty-eight mice's were divided into four groups of seven each: group (C) served as control; group (FCM-LLC) received only 100mgL of FCM-LLC/kg body weight daily for 15days; group (CCl4) was administered by a single dose of CCl4 (10mL/kg in 0...
October 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Yan-Ping Wu, Jie Deng, Shu-Hua Ouyang, Zhong-Fu Mao, Guo-En Wang, Hiroshi Kurihara, Rong-Rong He, Yi-Fang Li
Polypeptides extracted from animal immune organs have been proved to exert immunomodulatory activities in previous reports. However, relative experimental data regarding the influence of a polypeptide mixture extracted from healthy calf spleen (lienal polypeptide [LP]) on the immune function in tumor therapy are limited, and the components in LP remain unclear. In the present study, the immune regulatory effect of LP was investigated in normal mice and Lewis lung carcinoma (LLC)-bearing mice treated with cyclophosphamide (CTX)...
January 1, 2017: Experimental Biology and Medicine
Massimo Imbriaco, Carmela Nappi, Marta Puglia, Marco De Giorgi, Serena Dell'Aversana, Renato Cuocolo, Andrea Ponsiglione, Igino De Giorgi, Maria Vincenza Polito, Michele Klain, Federico Piscione, Leonardo Pace, Alberto Cuocolo
BACKGROUND: To compare cardiac magnetic resonance (CMR) qualitative and quantitative analysis methods for the noninvasive assessment of myocardial inflammation in patients with suspected acute myocarditis (AM). METHODS: A total of 61 patients with suspected AM underwent coronary angiography and CMR. Qualitative analysis was performed applying Lake-Louise Criteria (LLC), followed by quantitative analysis based on the evaluation of edema ratio (ER) and global relative enhancement (RE)...
October 26, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
Aphinya Suroengrit, Wanchalerm Yuttithamnon, Pimsiri Srivarangkul, Saran Pankaew, Krongkan Kingkaew, Warinthorn Chavasiri, Siwaporn Boonyasuppayakorn
Dengue virus infection is a global threat for which no specific treatment has not been established. Previous reports suggested chrysin and flavanone derivatives were potential flaviviral inhibitors. Here, we reported two halogenated chrysins, abbreviated FV13 and FV14, were highly potent against DENV1-4 and ZIKV infectivities with the FV13 EC50 values of 2.30 ± 1.04, 1.47 ± 0.86, 2.32 ± 1.46, 1.78 ± 0.72 and 1.65 ± 0.86 µM; and FV14 EC50 values of 2.30 ± 0.92, 2.19 ± 0...
October 20, 2017: Scientific Reports
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