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https://www.readbyqxmd.com/read/28828056/autoimmune-hepatitis-with-autoimmune-haemolytic-anemia-triggered-by-varicella-a-rare-presentation
#1
Deepak Jain, Harpreet Singh, Gaganpreet Singh, Promil Jain
Varicella is a common infectious exanthematous disease of children. Infection manifests as polymorphic maculopapulovesicular along with low grade fever, malaise and headache. Adults are less likely to be infected with varicella infection but once infected suffer disproportionately from serious complications like pneumonia, encephalitis, hepatitis and thrombocytopenia. Varicella hepatitis is generally a self-limiting disease with only a temporary subclinical rise in hepatic enzymes and are usually encountered however autoimmune hepatitis (AIH) which is an autoimmune disorder of unknown etiology affecting the liver is a very rare association of Varicella infection ...
December 2016: Mædica
https://www.readbyqxmd.com/read/28827346/structures-of-phlebovirus-glycoprotein-gn-and-identification-of-a-neutralizing-antibody-epitope
#2
Yan Wu, Yaohua Zhu, Feng Gao, Yongjun Jiao, Babayemi O Oladejo, Yan Chai, Yuhai Bi, Shan Lu, Mengqiu Dong, Chang Zhang, Guangmei Huang, Gary Wong, Na Li, Yanfang Zhang, Yan Li, Wen-Hai Feng, Yi Shi, Mifang Liang, Rongguang Zhang, Jianxun Qi, George F Gao
Severe fever with thrombocytopenia syndrome virus (SFTSV) and Rift Valley fever virus (RVFV) are two arthropod-borne phleboviruses in the Bunyaviridae family, which cause severe illness in humans and animals. Glycoprotein N (Gn) is one of the envelope proteins on the virus surface and is a major antigenic component. Despite its importance for virus entry and fusion, the molecular features of the phleboviruse Gn were unknown. Here, we present the crystal structures of the Gn head domain from both SFTSV and RVFV, which display a similar compact triangular shape overall, while the three subdomains (domains I, II, and III) making up the Gn head display different arrangements...
August 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28820686/the-emergence-of-severe-fever-with-thrombocytopenia-syndrome-virus
#3
Jesus A Silvas, Patricia V Aguilar
Severe fever with thrombocytopenia syndrome (SFTS) is a newly recognized hemorrhagic fever disease found throughout Asia with a case fatality rate between 12% and 30%. Since 2009, SFTS has been reported in China throughout 14 Chinese Provinces. In addition, SFTS has been recognized in South Korea and Japan with the first confirmed cases reported in 2012. A similar disease, caused by the closely related Heartland virus, was also reported in the United States in 2009. SFTS is caused by SFTS virus, a novel tick-borne virus in the family Bunyaviridae, genus Phlebovirus...
August 7, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820362/characterization-of-patients-with-systemic-lupus-erythematosus-who-meet-the-diagnostic-criteria-for-tafro-syndrome
#4
E Hasegawa, H Sato, Y Wada, K Takai, A Wakamatsu, Y Nozawa, T Nakatsue, T Kuroda, Y Suzuki, M Nakano, I Narita
Purpose TAFRO syndrome is a novel disorder manifesting as fever, anasarca, thrombocytopenia, renal insufficiency and organomegaly, and its etiology has not been clarified. The aim of this study was to elucidate similarities and differences between systemic lupus erythematosus (SLE) and TAFRO syndrome. Methods We examined 46 consecutive patients diagnosed with SLE and determined whether they meet the proposed diagnostic criteria for TAFRO syndrome (2015 version). Results Of the 46 patients with SLE, four (8...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28818105/severe-neutropenia-revealing-a-rare-presentation-of-dengue-fever-a-case-report
#5
J Shourick, A Dinh, M Matt, J Salomon, B Davido
BACKGROUND: Arboviruses are a common cause of fever in the returned traveler often associated with leucopenia, especially lymphopenia and thrombocytopenia. Transient neutropenia has been described in a few cases of arboviruses. However, prolonged and severe neutropenia (<500/mm(3)) has rarely been reported in dengue fever, especially in the returned traveler in Europe. CASE PRESENTATION: A 26-year-old healthy female without any medical past history, flying back from Thailand, presented a transient fever with severe neutropenia (<500/mm(3))...
August 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28806760/endothelial-activation-and-dysfunction-in-severe-fever-with-thrombocytopenia-syndrome
#6
Xiao-Kun Li, Zhen-Dong Yang, Juan Du, Bo Xing, Ning Cui, Pan-He Zhang, Hao Li, Xiao-Ai Zhang, Qing-Bin Lu, Wei Liu
BACKGROUND: Pathogenesis of severe fever with thrombocytopenia syndrome (SFTS) has not been well described yet. Recent studies indicate that SFTSV could replicate in endothelial cells. Here we performed a case-control study to determine whether endothelial activation/dysfunction occurred in SFTSV infection and to identify the biomarkers reflecting endothelial dysfunction. METHODOLOGY/PRINCIPAL FINDINGS: In a case-control study of 134 SFTS patients and 68 healthy controls, serum levels of plasminogen activator inhibitor 1, tissue plasminogen activator, P-selectin, platelet endothelial cell adhesion molecular, CD40 ligand, E-selectin, vascular endothelial growth factor A, serum amyloid antigen 1 (SAA-1) and vascular cell adhesion molecular 1 were significantly enhanced in the patients than the controls (all P<0...
August 14, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28800776/revisiting-clinico-epidemiological-pattern-of-human-rickettsial-infections-in-the-central-region-of-sri-lanka-a-hospital-based-descriptive-study
#7
Kosala Gayan Weerakoon, Senanayake A M Kularatne, Jayanthe Rajapakse, Sanjaya Adikari, Kanchana Udayawarna
BACKGROUND: This study revisits the clinico-epidemiology and serological patterns of rickettsioses in the central region of Sri Lanka and highlights the need of advanced diagnostics for precise identification of species responsible for rickettsioses. METHODS: The patients treated for rickettsioses between November 2009 and October 2011 were recruited for the study from Teaching Hospital, Peradeniya. Clinical characteristics and serology results were used for diagnosis...
August 11, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28792176/chikungunya-fever-presenting-as-life-threatening-thrombotic-thrombocytopenic-purpura
#8
Vimal Kumar, Rujul Jain, Arvind Kumar, Neeraj Nischal, Pankaj Jorwal, Manish Soneja, Sudheer Arava, Naveet Wig
It is well known for Chikungunya fever to present as myriad of skin rash along with usual joint pain and fever, but probably this is the first case report of Chikungunya fever presenting as severe life threatening thrombotic microangiopathy, thrombotic thrombocytopenic purpura leading to multiple areas of skin necrosis, peripheral digital gangrene, haemolytic anemia, renal failure and severe thrombocytopenia with bleeding. This complication was most likely due to inhibitor autoantibody formation against ADAMTS13 triggered by chikungunya virus leading to thrombotic thrombocytopenic purpura...
July 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28781319/successful-treatment-of-tafro-syndrome-with-tocilizumab-prednisone-and-cyclophosphamide
#9
Taku Kikuchi, Takayuki Shimizu, Takaaki Toyama, Ryohei Abe, Shinichiro Okamoto
TAFRO syndrome is a rare systemic inflammatory disease characterized by thrombocytopenia, pleural effusion, fever, renal dysfunction, reticulin fibrosis of the bone marrow, and organomegaly. The clinical course varies significantly among patients. However, the prognosis is usually dismal in patients with severe TAFRO syndrome, and no optimal treatment has yet been established. We herein describe the first case of TAFRO syndrome, which was successfully treated with combination therapy consisting of tocilizumab, prednisone, and cyclophosphamide...
August 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28780461/nano-patterning-of-a-stainless-steel-microneedle-surface-to-improve-the-dip-coating-efficiency-of-a-dna-vaccine-and-its-immune-response
#10
Daeyoon Jung, N Sanoj Rejinold, Jeong-Eun Kwak, Su-Hyung Park, Yeu-Chun Kim
DNA vaccination with microneedles (MNs) into the skin represents a potential therapeutic approach for the clinical treatment of viral diseases as well as for intradermal genetic immunization. In this study, we investigated a DNA vaccination against the severe fever with thrombocytopenia syndrome virus (SFTSV) delivered by nano-patterned microneedles (nMNs) to improve the efficiency compared to a conventional MN vaccination. Because DNA vaccinations delivered by coated MNs have major disadvantages such as a poor coating efficiency and immunogenicity, additional excipients are necessary...
July 25, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28774267/two-confirmed-cases-of-severe-fever-with-thrombocytopenia-syndrome-with-pneumonia-implication-for-a-family-cluster-in-east-china
#11
Yiyi Zhu, Huanyu Wu, Jie Gao, Xin Zhou, Renyi Zhu, Chunzhe Zhang, Hongling Bai, Abu S Abdullah, Hao Pan
BACKGROUND: Severe fever with thrombocytopenia syndrome (SFTS) was first reported in China in 2011. Human-to-human transmission of the virus occurred occasionally in family clusters. However, pneumonia as an onset syndrome was not common in most SFTS cases. Our aim is to report a family cluster of SFTS with clinical manifestation of pneumonia in Shanghai. METHODS: Epidemiologic investigations were conducted when a family cluster of severe fever with thrombocytopenia syndrome virus (SFTSV) infection was identified in Shanghai in June 2016...
August 3, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28765218/dengue-virus-infected-dendritic-cells-but-not-monocytes-activate-natural-killer-cells-through-a-contact-dependent-mechanism-involving-adhesion-molecules
#12
Vivian Vasconcelos Costa, Weijian Ye, Qingfeng Chen, Mauro Martins Teixeira, Peter Preiser, Eng Eong Ooi, Jianzhu Chen
Natural killer (NK) cells play a protective role against dengue virus (DENV) infection, but the cellular and molecular mechanisms are not fully understood. Using an optimized humanized mouse model, we show that human NK cells, through the secretion of gamma interferon (IFN-γ), are critical in the early defense against DENV infection. Depletion of NK cells or neutralization of IFN-γ leads to increased viremia and more severe thrombocytopenia and liver damage in humanized mice. In vitro studies using autologous human NK cells show that DENV-infected monocyte-derived dendritic cells (MDDCs), but not monocytes, activate NK cells in a contact-dependent manner, resulting in upregulation of CD69 and CD25 and secretion of IFN-γ...
August 1, 2017: MBio
https://www.readbyqxmd.com/read/28764747/dengue-specific-serotype-related-to-clinical-severity-during-the-2012-2013-epidemic-in-centre-of-brazil
#13
Benigno A M Rocha, Adriana O Guilarde, Angela F L T Argolo, Marianna Peres Tassara, Lucimeire A da Silveira, Isabela C Junqueira, Marília D Turchi, Valéria C R Féres, Celina M T Martelli
Please see Additional file 1 for translations of the abstract into the five official working languages of the United Nations. BACKGROUND: Currently, in Brazil, there is a co-circulation of the four dengue (DENV-1 to DENV-4) serotypes. This study aimed to assess whether different serotypes and antibody response patterns were associated with the severity of the disease during a dengue outbreak, which occurred in 2012/2013 in centre of Brazil. METHODS: We conducted a prospective study with 452 patients with laboratory confirmed dengue in central Brazil, from January 2012 to July 2013...
August 2, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28764157/seroepidemiology-of-spotted-fever-rickettsiosis-in-uttar-pradesh-a-prospective-study
#14
Chandra Dev Pati Tripathi, Mastan Singh, Jyotsna Agarwal, Chandra Kanta, Virendra Atam
INTRODUCTION: Spotted Fever Rickettsiosis (SFR), an acute febrile illness caused by Rickettsia rickettsii, R. conorii and R. akari which is associated with considerable morbidity and mortality. SFR is one of the most covert emerging infections of the present time which is prevalent in various parts of India as shown by the increase in the number of clinically diagnosed patients in various states except Uttar Pradesh. AIM: To diagnose SFR in clinically suspected patients using serological tests and recognition of common epidemiologic situations and clinical manifestations of SFR in the state of Uttar Pradesh...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762841/haematuria-is-a-marker-for-the-severity-of-acute-kidney-injury-but-does-not-associate-with-thrombocytopenia-in-acute-puumala-hantavirus-infection
#15
Tuula K Outinen, Paula Mantula, Outi K Laine, Ilkka Pörsti, Antti Vaheri, Satu M Mäkelä, Jukka Mustonen
BACKGROUND: Puumala hantavirus (PUUV) causes haemorrhagic fever with renal syndrome characterized by thrombocytopenia, capillary leakage and acute kidney injury (AKI) with proteinuria and haematuria. Although the typical histologic lesion is acute tubulointerstitial nephritis, the amount of glomerular proteinuria predicts the severity of upcoming AKI. Here, we studied the associations of haematuria and proteinuria with the severity of emerging AKI, thrombocytopenia and markers of coagulation and fibrinolysis in PUUV infection...
August 1, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28748879/early-clinical-manifestations-and-laboratory-findings-before-and-after-treatment-of-cytomegalovirus-infection-in-kidney-transplant-patients
#16
Wasim Ahmed Siddiqui, Issa Al Salmi, Amitabh Jha, Abbas Pakkyara, Mohammad Yasir, Faissal A M Shaheen
Cytomegalovirus (CMV) is one of the most frequently encountered opportunistic viral pathogens in kidney transplant recipients. In this study, we retrospectively reviewed all living related and unrelated kidney transplant recipients on regular follow-up from January 2006 to June 2015, who were suspected to have CMV clinically and confirmed by DNA polymerase chain reaction (PCR). CMV PCR was detected in 102 kidney transplant recipients. The median time of detection after kidney transplant was 21 months, ranging from 15 days to 84 months...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28747721/downregulation-of-interferon-%C3%AE-and-inhibition-of-tlr3-expression-are-associated-with-fatal-outcome-of-severe-fever-with-thrombocytopenia-syndrome
#17
Peixin Song, Nan Zheng, Li Zhang, Yong Liu, Taoyu Chen, Changjun Bao, Zhifeng Li, Wei Yong, Yongyang Zhang, Chao Wu, Zhiwei Wu
Severe Fever with Thrombocytopenia Syndrome (SFTS) is an emerging infectious disease with high mortality and increasing prevalence in the East Asia. Though the etiological agent has been identified as a novel Bunyavirus, cellular mechanisms of viral pathogenesis and host immune response to SFTS virus infection remain unknown. A comprehensive study was conducted on a cohort of 70 patients on clinical manifestations, viral loads, modulation of cytokines, serum interferon level, immune related gene expression in peripheral blood cells, and dynamic changes of circulating dendritic cells during the acute phase of SFTSV infection...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747674/increased-prevalence-of-severe-fever-with-thrombocytopenia-syndrome-in-eastern-china-clustered-with-multiple-genotypes-and-reasserted-virus-during-2010-2015
#18
Zhifeng Li, Jianli Hu, Lunbiao Cui, Ye Hong, Jianwei Liu, Pengfei Li, Xiling Guo, Wendong Liu, Xiaochen Wang, Xian Qi, Bin Wu, Zhi Feng, Aihua Shen, Xuejian Liu, Hongjun Zhao, Wenwen Tan, Jiangang Zhou, Zheng Xing, Changjun Bao
Severe fever with thrombocytopenia syndrome (SFTS) is a novel tick-borne viral disease with high mortality. Since January 2010, we have conducted an epidemiological surveillance and etiological study of SFTS in Jiangsu and Anhui provinces. From January 2010 through December 2015, a total of 286 SFTS cases were confirmed in Jiangsu and Anhui provinces with a case fatality rate of 16.1%. The majority of confirmed SFTS cases were distributed in the border area of Jiangsu and Anhui provinces. Our findings suggest that the SFTS prevalence rate rose since 2010 and reached its highest in 2015...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28740574/phase-i-ii-study-of-erlotinib-carboplatin-pemetrexed-and-bevacizumab-in-chemotherapy-na%C3%A3-ve-patients-with-advanced-non-squamous-non-small-cell-lung-cancer-harboring-epidermal-growth-factor-receptor-mutation
#19
Takayasu Kurata, Aya Nakaya, Takashi Yokoi, Maiko Niki, Kayoko Kibata, Yuki Takeyasu, Yoshitaro Torii, Yuichi Katashiba, Makoto Ogata, Takayuki Miyara, Shosaku Nomura
BACKGROUND: Epidermal growth factor receptor tyrosine kinase inhibitors significantly prolong the progression-free survival of patients with non-squamous non-small cell lung cancer (NSCLC). However, most patients develop tumor regrowth and their prognosis remains poor. A new treatment strategy for NSCLC harboring EGFR mutation is therefore necessary. METHODS: In phase I, eligible patients were administered oral erlotinib daily and intravenous pemetrexed, carboplatin, and bevacizumab every 3 weeks for four cycles with maintenance of pemetrexed and bevacizumab until progressive disease was observed...
May 2017: Genes & Cancer
https://www.readbyqxmd.com/read/28732376/risk-factors-associated-with-fatality-of-severe-fever-with-thrombocytopenia-syndrome-a-meta-analysis
#20
Yuxin Chen, Bei Jia, Yong Liu, Rui Huang, Junhao Chen, Chao Wu
Severe fever with thrombocytopenia syndrome is an emerging life-threatening infectious disease identified in 2009. Given high case-fatality rate among patients with severe fever with thrombocytopenia syndrome, identification of the risk factors at acute phase associated with fatality is crucial for treatment. Therefore, we aimed to meta-analytically evaluate risk factors of fatal clinical outcome of severe fever with thrombocytopenia syndrome. 238 fatal cases and 873 non-fatal cases from 12 studies were included in this meta-analysis...
July 11, 2017: Oncotarget
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