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Ling-Ling Zhang, Li-Nong Yao, Hua-Liang Chen, Qiao-Yi Lu, Wei Ruan
BACKGROUND: Plasmodium vivax remains a potential cause of morbidity and mortality for people living where it is endemic. Understanding the regional genetic diversity of P. vivax is valuable for studying population dynamics and tracing the origins of parasites. The Plasmodium vivax circumsporozoite gene (PvCSP) is highly polymorphic and has been used previously as a marker in P. vivax population studies. The aim of this study is to investigate the genetic diversity of the PvCSP, to provide more genetic polymorphism data for further studies on P...
March 8, 2018: Experimental Parasitology
Weihui Xu, Yimin You, Zhigang Wang, Wenjing Chen, Jin Zeng, Xiaosong Zhao, Yunpeng Su
Dibutyl phthalate (DBP) is well known as a high-priority pollutant. This study explored the impacts of DBP on the metabolic pathways of microbes in black soils in the short term (20 days). The results showed that the microbial communities were changed in black soils with DBP. In nitrogen cycling, the abundances of the genes were elevated by DBP. DBP contamination facilitated 3'-phosphoadenosine-5'-phosphosulfate (PAPS) formation, and the gene flux of sulfate metabolism was increased. The total abundances of ABC transporters and the gene abundances of the monosaccharide-transporting ATPases MalK and MsmK were increased by DBP...
February 8, 2018: Scientific Reports
Hui Wang, Jing-Xiao Zhang, Yue Wang, Wen-Hong Fang, Yuan Wang, Jun-Fang Zhou, Shu Zhao, Xin-Cang Li
Type II crustins are the most abundant type of crustins in shrimps that exhibit remarkable sequence diversities and broad antibacterial activities. This study characterized a novel type II crustin, SpCrus2, in the mud crab Scylla paramamosain. The SpCrus2 cDNA sequence is 620-bp long with a 495-bp open reading frame encoding a 164-amino acid protein. In the deduced protein, a 17-amino acid signal peptide, a glycine-rich hydrophobic region (GRR), and a cysteine-rich region (CRR) containing a whey acidic protein domain were predicted...
February 2, 2018: Developmental and Comparative Immunology
Sam A O'Connor, Trevor N Brooklyn, Paul D Dunckley, Roland M Valori, Ruth Carr, Chris Foy, Thusitha Somarathna, Lukasz A Adamczyk, Neil A Shepherd, John T Anderson
Background and study aims:  The majority of polyps removed at colonoscopy are diminutive (≤ 5 mm) to small (< 10 mm) and there are few guidelines for the best way for these polyps to be removed. We aimed to assess the feasibility and effectiveness of cold biopsy forceps polypectomy with pre-lift (CBPP) for polyps ≤ 7 mm. Our aims were to assess completeness of histological resection of this technique, to identify factors contributing to this and assess secondary considerations such as timing, retrieval and complication rates...
February 2018: Endoscopy International Open
Michele Marchioni, Felix Preisser, Marco Bandini, Sebastiano Nazzani, Zhe Tian, Anil Kapoor, Luca Cindolo, Firas Abdollah, Derya Tilki, Alberto Briganti, Francesco Montorsi, Shahrokh F Shariat, Luigi Schips, Pierre I Karakiewicz
BACKGROUND: Historically, partial nephrectomy (PN) showed no benefit on other-cause mortality (OCM) in elderly patients with small renal masses. OBJECTIVE: To test the effect of PN versus radical nephrectomy (RN) on OCM, cancer-specific mortality (CSM), as well as 30-d mortality in patients with nonmetastatic T1a renal cell carcinoma (RCC), aged ≥75 yr old. DESIGN, SETTING, AND PARTICIPANTS: Within the Surveillance, Epidemiology and End Results registry (2004-2014), we identified surgically treated patients with nonmetastatic pT1a RCC aged ≥75 yr...
February 2, 2018: European Urology Focus
Young Duck Shin, Young Jin Choi, Dae Hoon Kim, Sung Su Park, Hanlim Choi, Dong Ju Kim, Sungmin Park, Hyo Yung Yun, Young Jin Song
This study aimed to determine the efficacy of intraoperative ultrasonography-guided wire localization guided breast-conserving surgery (BCS) for nonpalpable breast cancer and compare it to conventional preoperative wire localization (PWL) guided surgery.We retrospectively analyzed the medical charts of 214 consecutive nonpalpable breast cancer patients who underwent BCS using intraoperative ultrasonography-guided wire localization by a surgeon (IUWLS) and PWL, between April 2013 and March 2017. Positive surgical margins, reexcision rates, and resection volumes were investigated...
December 2017: Medicine (Baltimore)
Su Jung Han, Yunho Jung, Young Sin Cho, Il-Kwun Chung, Jae Yun Kim, Jun Young Eun, Seoung Ho Lee, Gyu Bong Ko, Tae Hoon Lee, Sang Hum Park, Hyun Deuk Cho, Sun-Joo Kim
BACKGROUND/AIMS: Submucosal injection with indigo carmine mixed solution can improve the delineation of colorectal neoplasia during endoscopic mucosal resection (EMR). Thus, the aim of this study was to evaluate the efficacy of submucosal injection with indigo carmine mixed solution during EMR of colorectal neoplasia. METHODS: This was a prospective, randomized, controlled study of a total of 212 neoplastic colon polyps (5-20 mm) subjected to EMR in a single tertiary university hospital...
January 30, 2018: Digestive Diseases and Sciences
Marco Bandini, Felix Preisser, Sebastiano Nazzani, Michele Marchioni, Zhe Tian, Nicola Fossati, Giorgio Gandaglia, Andrea Gallina, Firas Abdollah, Shahrokh F Shariat, Francesco Montorsi, Fred Saad, Derya Tilki, Alberto Briganti, Pierre I Karakiewicz
BACKGROUND: Aborted radical prostatectomy (aRP) in lymph node (LN) metastatic (pN1) prostate cancer (PCa) patients showed worse survival in European patients. Contemporary rates of aRP are unknown in North America. OBJECTIVE: To examine the rate of aRP and its effect on cancer-specific mortality (CSM) in contemporary North American patients. DESIGN, SETTING, AND PARTICIPANTS: Within the Surveillance Epidemiology and End Results database (2004-2014), we identified 3719 pN1 PCa patients...
January 20, 2018: European Urology Focus
Z J Sun, X D Zhang, L Ren, X Y Yang, J F Cai, X Li, X Zheng, W Wang
Objective: To explore the relationship between creatinine reduction ratio (CRR) and delayed graft function among kidney transplant recipients from donor of cardiac death (DCD). To define the value of CRR to predict delayed graft function (DGF) in early post-transplant period. Method: 86 patients were included, who received renal transplantation from DCD during Jan 1(st) 2011 to Jun 30(th) 2016. We performed a retrospective study and collected creatinine data within 3 days post-operation and marked them with Cr1, Cr2 , Cr3, and then calculated creatinine reduction ratio day-2 (CRR 2) =(Cr1-Cr2)/Cr1×100% and creatinine reduction ratio day-3 (CRR 3)=[(Cr1-Cr2)/Cr1+ (Cr2-Cr3)/Cr2]/2×100%...
January 2, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Raisa S Pompe, Ariane Smith, Marco Bandini, Michele Marchioni, Tristan Martel, Felix Preisser, Sami-Ramzi Leyh-Bannurah, Jonas Schiffmann, Fred Saad, Hartwig Huland, Markus Graefen, Shahrokh F Shariat, Derya Tilki, Pierre I Karakiewicz
BACKGROUND: To examine clinical characteristics, treatment modalities and oncological outcomes of prostate cancer (PCa) according to young (≤50) vs. old age. METHODS: Of 407,599 men with primary adenocarcinoma of the prostate within the Surveillance, Epidemiology and End Results (SEER)-database (2004 to 2013), 18,387 were aged ≤50 years (4.5%). Time trends, cumulative incidence, and competing risks regression (CRR) analyses tested for differences between young and old patients...
January 16, 2018: Prostate Cancer and Prostatic Diseases
Rahim Sharafkhani, Narges Khanjani, Bahram Bakhtiari, Yunes Jahani, Jafar Sadegh Tabrizi
There are few epidemiological studies about climate change and the effect of temperature variation on health using human thermal indices such as the Physiological Equivalent Temperature (PET) Index in Iran. This study was conducted in Tabriz, the northwest of Iran and Distributed Lag Non-linear Models (DLNM) combined with quasi-Poisson regression models were used to assess the impacts of PET on mortality by using the DLNM Package in R Software. The effect of air pollutants, time trend, day of the week and holidays were controlled as confounders...
January 2018: Journal of Thermal Biology
Xinyao Lu, Shunli Ren, Jingzheng Lu, Hong Zong, Jian Song, Bin Zhuge
AIMS: This study aimed to strengthen the reducing equivalent regeneration in Klebsiella pneumoniae for improving 1,3-propanediol (PDO) production. METHODS AND RESULTS: Disruption of the arcA gene activated the transcription levels of the TCA cycle genes and thus increased the NADH/NAD+ ratio by 54.2%, leading to the improved PDO titer and yield per cell from 16.1 g l-1 and 4.0 g gDCW-1 to 18.8 g l-1 and 6.4 g gDCW-1 , respectively. Further ldhA gene deletion eliminated lactate accumulation and promoted the PDO titer to 19...
January 3, 2018: Journal of Applied Microbiology
Ana Tauste, Elena Ronda, Valborg Baste, Magne Bråtveit, Bente E Moen, María-Del-Mar Seguí Crespo
PURPOSE: To analyze differences in the ocular surface appearance and tear film status of contact lens wearers and non-wearers in a group of visual display terminals (VDT) workers and additionally to assess differences between lens materials. METHODS: Cross-sectional study of 236 office workers, of whom 92 were contact lens wearers. Workers provided information on their contact lenses (conventional hydrogel, silicone hydrogel or rigid gas permeable lenses) and exposure to VDT at work...
December 4, 2017: International Archives of Occupational and Environmental Health
Hsiang-Hsi Hong, Heng-Liang Liu, Adrienne Hong, Pu Chao
Micro-computed tomography (micro-CT) was applied to elucidate the relationship between the three-dimensional (3D) root surface area (RSA) and two-dimensional (2D) crown-to-root ratio (CRR) of extracted teeth to classify the periodontitis and assign a periodontal/prosthetic prognosis. A total of 31 maxillary and 35 mandibular single-rooted human premolars were examined. The amount of periodontal support on the basis of 3D RSA and 2D root length (RL) at CRRs of 1:1, 5:4, 3:2, and 2:1 were analyzed. Both maxillary and mandibular premolars demonstrated a nonsignificant RSA percentage at the evaluated CRRs...
November 28, 2017: Scientific Reports
Xiaowei Zhong, Alexander Vallmitjana, Bo Sun, Zhichao Xiao, Wenting Guo, Jinhong Wei, Mingke Ni, Yongxiang Chen, Edward R O'Brien, Anne M Gillis, Masahiko Hoshijima, Hiroshi Takeshima, Leif Hove-Madsen, Raul Benitez, Darrell Belke, S R Wayne Chen
Reduced protein expression of the cardiac ryanodine receptor type 2 (RyR2) is thought to affect the susceptibility to stress-induced ventricular tachyarrhythmia (VT) and cardiac alternans, but direct evidence for the role of RyR2 protein expression in VT and cardiac alternans is lacking. Here, we used a mouse model ( crr m1 ) that expresses a reduced level of the RyR2 protein to determine the impact of reduced RyR2 protein expression on the susceptibility to VT, cardiac alternans, cardiac hypertrophy, and sudden death...
January 5, 2018: Biochemical Journal
David Ribes, Hélène E L Hachem, Lucie Oberic, François Vergez, Audrey Delas, Julie Belliere, Caroline Protin, Nassim Kamar, Inès Ferrandiz, Suzanne Tavitian, Camille Laurent, Antoine Huart, Dominique Chauveau, Loïc Ysebaert, Stanislas Faguer
Treatment of indolent B-cell non-Hodgkin lymphomas (iNHL) of renal significance is challenging given the need for deep and prolonged hematological response to restore and control renal function overtime, yet to be balanced with the risk of adverse drug-related events. This prospective single-center study included 20 patients with iNHL of renal significance (tubulointerstitial presentation [n = 8], glomerulopathy with or without monoclonal Ig deposits [n = 12]) who received a steroid-sparing regimen of rituximab plus bendamustine (BR), with either no or <1 month of steroid intake (as a first line therapy in 80%)...
March 2018: American Journal of Hematology
Louis Wc Chow, Satoshi Morita, Christopher Yc Chow, Wai Kuen Ng, Masakazu Toi
To test the efficacy of neoadjuvant palbociclib therapy and to evaluate its impact on cell cycle arrest and changes in EndoPredict (EP) scores before and after treatment. Postmenopausal women with histologically proven ER+ve, HER2-ve invasive breast cancer, 2cm or greater, were enrolled in an open-label, single arm study. Twenty eligible patients were given letrozole 2.5mg per day together with palbociclib 125mg per day for 3 out of 4 weeks in repeated cycles for 16 weeks (4 cycles) before surgery. The primary end-points were clinical response rates (cRR) and preoperative endocrine prognostic index (PEPI)...
November 20, 2017: Endocrine-related Cancer
Virginia Robles Gijón, Cristina Lucena Martín, Rosa Mª Pulgar Encinas, José Manuel Navajas
Root resorption is the loss of hard dental tissue as a result of odontoclastic action involving vital and pulpless teeth. Cervical root resorption (CRR) is a type of external resorption which usually occurs immediately below the epithelial attachment of the tooth in the cervical region. The idiopathic cervical resorption (ICR) refers to a clinical situation in which all other causes, whether local or systemic, have been ruled out as the origin of the disease. The early stage is asymptomatic and might be diagnosed by a routine radiograph or a clinical examination...
December 2016: Dental Update
Zhongheng Zhang, Ronald B Geskus, Michael W Kattan, Haoyang Zhang, Tongyu Liu
Clinical research usually involves time-to-event survival analysis, in which the presence of a competing event is prevalent. It is acceptable to use the conventional Cox proportional hazard regression to model cause-specific hazard. However, this cause-specific hazard cannot directly translate to the cumulative incidence function, and the latter is usually clinically relevant. The subdistribution hazard regression directly quantifies the impact of covariates on the cumulative incidence. When estimating the subdistribution hazard, subjects experiencing competing event continue to contribute to the risk set, and censoring weights are assigned to them after the competing event time...
October 2017: Annals of Translational Medicine
Yan Jiao, Yao Zheng, Ping Chen, Mietek Jaroniec, Shi-Zhang Qiao
A major impediment to the electrocatalytic CO2 reduction reaction (CRR) is the lack of electrocatalysts with both high efficiency and good selectivity toward liquid fuels or other valuable chemicals. Effective strategies for the design of electrocatalysts are yet to be discovered to substitute the conventional trial-and-error approach. This work shows that a combination of density functional theory (DFT) computation and experimental validation of molecular scaffolding to coordinate the metal active centers presents a new molecular-level strategy for the development of electrocatalysts with high CRR selectivity toward hydrocarbon/alcohol...
December 13, 2017: Journal of the American Chemical Society
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