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Bioscience Trends

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https://www.readbyqxmd.com/read/28320981/relationship-between-thromboelastography-and-long-term-ischemic-events-as-gauged-by-the-response-to-clopidogrel-in-patients-undergoing-elective-percutaneous-coronary-intervention
#1
Xumin Hou, Wenzheng Han, Qian Gan, Yuan Liu, Weiyi Fang
Ischemic events after percutaneous coronary intervention (PCI) remain a major concern for patients with coronary heart disease (CHD). The aim of the current study was to investigate whether thromboelastography (TEG) was a satisfactory technique to measure platelet function in vitro in order to improve risk stratification and the individual response to antiplatelet therapy. The diagnostic and prognostic utility of the maximum amplitude of adenosine diphosphate induced platelet-fibrin clots (MAADP) was measured with TEG in 759 patients undergoing elective PCI...
March 19, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28260718/loss-of-setd2-but-not-h3k36me3-correlates-with-aggressive-clinicopathological-features-of-clear-cell-renal-cell-carcinoma-patients
#2
Lei Liu, Renbo Guo, Xiang Zhang, Yiran Liang, Feng Kong, Jue Wang, Zhonghua Xu
Recent studies facilitated by DNA sequencing identified the histone modifying gene SETD2 as the second most frequent mutant gene in sporadic clear cell renal cell carcinoma (ccRCC) patients. SETD2 functions as a tumor suppressor in ccRCC. However, its clinical association and biological functions are not fully delineated. The aim of this study is to evaluate the clinical significance of SETD2 in ccRCC patients. SETD2 and its canonical histone modification product H3K36me3 were analyzed by immunohistochemistry (IHC) in 155 ccRCC patients from two independent cohorts retrospectively...
March 6, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250341/china-is-closely-monitoring-an-increase-in-infection-with-avian-influenza-a-h7n9-virus
#3
Qi Tang, Meiying Shao, Lingzhong Xu
The fifth outbreak of human infection with avian influenza A (H7N9) virus has struck far and wide in China. The number of cases of infection with the avian influenza A (H7N9) suddenly increased in 2013-2014, but the number of cases reported this winter has exceeded the number reported in all previous seasons. Given this situation, the National Health and Family Planning Commission issued updated Chinese guidelines (2017 version) on diagnosis and treatment of infection with the avian influenza A (H7N9) virus on January 24, 2017...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250340/global-concern-regarding-the-fifth-case-of-human-infection-with-avian-influenza-a-h7n9-virus-in-china
#4
Yinzhong Shen, Hongzhou Lu
Since the first case of human infection with the avian influenza A (H7N9) virus was identified in 2013, five seasonal outbreaks have occurred in China. The fifth outbreak started earlier than usual. A sudden increase in cases of human infection with the avian influenza A (H7N9) virus has been reported in China since September 2016, and the number of cases reported this season is exceeding that reported in previous seasons. This increase in the number of new cases of H7N9 infection has caused domestic and international concern...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250339/the-evolutionary-appearance-of-signaling-motifs-in-pgrmc1
#5
Michael A Cahill
A complex PGRMC1-centred regulatory system controls multiple cell functions. Although PGRMC1 is phosphorylated at several positions, we do not understand the mechanisms regulating its function. PGRMC1 is the archetypal member of the membrane associated progesterone receptor (MAPR) family. Phylogentic comparison of MAPR proteins suggests that the ancestral metazoan "PGRMC-like" MAPR gene resembled PGRMC1/PGRMC2, containing the equivalents of PGRMC1 Y139 and Y180 SH2 target motifs. It later acquired a CK2 site with phosphoacceptor at S181...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250338/key-role-of-liver-sinusoidal-endothelial-cells-in-liver-fibrosis
#6
Mingxing Xu, Xuehua Wang, Yong Zou, Yuesi Zhong
Because of the prevalence of viral hepatitis and nonalcoholic fatty liver disease (NAFLD), liver fibrosis has become a very common disease in Asia and elsewhere in the world, constantly increasing the burden of care borne by society. Hepatic sinusoidal capillarization, characterized by gradually shrinking fenestrae on the surface of liver sinusoidal endothelial cells (LSECs) and the formation of an organized basement membrane, is an initial pathologic change associated with liver fibrosis. Basic and clinical studies have indicated that LSECs play a key role in hepatic sinusoidal capillarization by affecting various aspects of the development and progression of liver fibrosis...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250337/androgen-receptor-gene-cag-repeat-polymorphism-and-ovarian-cancer-risk-a-meta-analysis
#7
Yang Deng, Jue Wang, Ling Wang, Yan Du
Ovarian cancer is one of the common gynecological malignancies worldwide. It is usually diagnosed at a later stage, thus missing the best opportunity for treatment. Despite the advancement of ovarian cancer treatment, the prognosis is still poor. Androgen receptor (AR) may play a role in ovarian carcinogenesis. Previous studies regarding the association between AR CAG repeat length and ovarian cancer risk reported inconsistent results. Therefore, we conducted a meta-analysis to evaluate the association between AR CAG repeat length and ovarian cancer risk following the MOOSE guidelines...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250336/the-periplasmic-sensing-domain-of-pseudomonas-fluorescens-chemotactic-transducer-of-amino-acids-type-b-ctab-cloning-refolding-purification-crystallization-and-x-ray-crystallographic-analysis
#8
Abu Iftiaf Md Salah Ud-Din, Anna Roujeinikova
Pseudomonas fluorescens is a plant growth promoting rhizobacterium that provides nutrients for growth and induces systemic resistance against plant diseases. It has been linked with a number of human diseases including nosocomial infections and bacterial cystitis. Chemotactic motility of P. fluorescens towards root exudates plays a crucial role in establishing a symbiotic relationship with host plants. The P. fluorescens chemotactic transducer of amino acids type B (CtaB) mediates chemotaxis towards amino acids...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28250335/role-of-the-pretreatment-18-f-fluorodeoxyglucose-positron-emission-tomography-maximal-standardized-uptake-value-in-predicting-outcomes-of-colon-liver-metastases-and-that-value-s-association-with-beclin-1-expression
#9
Eleonora G Dimitrova, Borislav G Chaushev, Nikolay V Conev, Javor K Kashlov, Aleksandar K Zlatarov, Dilyan P Petrov, Hristo B Popov, Nadezhda T Stefanova, Anelia D Klisarova, Kameliya Z Bratoeva, Ivan S Donev
The current study sought to evaluate the predictive and prognostic performance of the maximum standardized uptake value (SUVmax) prior to treatment in 43 patients with colon cancer and unresectable liver metastases. Patients with colon cancer who underwent (18)F-FDG-PET/computed tomography (CT) scans for staging before the start of first-line 5-fluorouracil-based chemotherapy were retrospectively analyzed. Expression of Beclin-1 in cancer cells was evaluated in primary tumors using immunohistochemical staining...
February 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28239053/transforming-growth-factor-beta-and-forkhead-box-o-transcription-factors-as-cardiac-fibroblast-regulators
#10
Ignacio Norambuena-Soto, Constanza Núñez-Soto, Fernanda Sanhueza-Olivares, Nicole Cancino-Arenas, David Mondaca-Ruff, Raul Vivar, Guillermo Díaz-Araya, Rosemarie Mellado, Mario Chiong
Fibroblasts play several homeostatic roles, including electrical coupling, paracrine signaling and tissue repair after injury. Fibroblasts have low secretory activity. However, in response to injury, they differentiate to myofibroblasts. These cells have an increased extracellular matrix synthesis and secretion, including collagen fibers, providing stiffness to the tissue. In pathological conditions myofibroblasts became resistant to apoptosis, remaining in the tissue, causing excessive extracellular matrix secretion and deposition, which contributes to the progressive tissue remodeling...
February 24, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28216517/simultaneous-resection-for-colorectal-cancer-with-synchronous-liver-metastases-is-a-safe-procedure-outcomes-at-a-single-center-in-turkey
#11
Ender Dulundu, Wafi Attaallah, Metin Tilki, Cumhur Yegen, Safak Coskun, Mumin Coskun, Aylin Erdim, Eda Tanrikulu, Samet Yardimci, Omer Gunal
The optimal surgical strategy for treating colorectal cancer with synchronous liver metastases is subject to debate. The current study sought to evaluate the outcomes of simultaneous colorectal cancer and liver metastases resection in a single center. Prospectively collected data on all patients with synchronous colorectal liver metastases who underwent simultaneous resection with curative intent were analyzed retrospectively. Patient outcomes were compared depending on the primary tumor location and type of liver resection (major or minor)...
February 17, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28190795/progress-in-understanding-the-molecular-functions-of-ddx3y-dby-in-male-germ-cell-development-and-maintenance
#12
Alexei A Kotov, Oxana M Olenkina, Baira K Godneeva, Vladimir E Adashev, Ludmila V Olenina
Human DDX3 paralogs are housed on the X chromosome (DDX3X) as well as in the non- recombining region Yq11 of the Y-chromosome (DDX3Y or DBY). A gene encoding RNA helicase DDX3Y is located in the AZoospermia Factor a (AZFa) region of the Y-chromosome and expressed only in male germ cells. Deletions encompassing the DDX3Y gene lead to azoospermia and cause Sertoli Cell-Only Syndrome (SCOS) in humans. SCOS is characterized by a complete germ cell lack with preservation of somatic Sertoli cells. This review summarizes current advances in the study of DDX3Y functions in maintenance and development of early male germ cells...
February 12, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28179601/regulation-of-ras-signaling-and-function-by-plasma-membrane-microdomains
#13
Lawrence E Goldfinger, James V Michael
Together H-, N- and KRAS mutations are major contributors to ~30% of all human cancers. Thus, Ras inhibition remains an important anti-cancer strategy. The molecular mechanisms of isotypic Ras oncogenesis are still not completely understood. Monopharmacological therapeutics have not been successful in the clinic. These disappointing outcomes have led to attempts to target elements downstream of Ras, mainly targeting either the Phosphatidylinositol 3-Kinase (PI3K) or Mitogen-Activated Protein Kinase (MAPK) pathways...
February 7, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28179600/an-ethanol-extract-of-aster-yomena-kitam-honda-inhibits-lipopolysaccharide-induced-inflammatory-responses-in-murine-raw-264-7-macrophages
#14
Hye-Joo Kang, Ji-Suk Jeong, No-Jin Park, Geun-Bae Go, Sung Ok Kim, Cheol Park, Byung Woo Kim, Su-Hyun Hong, Yung Hyun Choi
Aster yomena (Kitam.) Honda has been widely used as a traditional herbal medicine for centuries to treat cough, asthma, insect bites, etc. Recent reports indicate that A. yomena possesses a wide spectrum of pharmacological activities; however, few experiments have described its anti-inflammatory properties. The present study examined the anti-inflammatory effects of an ethanol extract of A. yomena leaves (EEAY) on lipopolysaccharide (LPS)-stimulated murine RAW 264.7 macrophages. Treatment with EEAY significantly reduced the secretion of pro-inflammatory molecules, such as nitric oxide and interleukin-1β, in LPS-stimulated RAW 264...
February 7, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28179599/the-immune-dysfunction-in-ankylosing-spondylitis-patients
#15
Zhongliang Duan, Yuyan Gui, Cui Li, Jing Lin, Hans-Jürgen Gober, Juanxiu Qin, Dajin Li, Ling Wang
Ankylosing spondylitis (AS) is a spinal arthritic disease that is often associated with human leukocyte antigen (HLA)-B27, while only part of HLA-B27 carriers become AS patients. T cells have been reported to play an important role in the pathology of AS. T-cell immunoglobulin and mucin-domain-containing molecule 3 (Tim-3) and programmed death-1 (PD-1) have been known to negatively regulate the immune response. In this study, we used flow cytometry to analyze the immunological differences of peripheral bloodfrom 21 patients with AS, 22 cases who didn't have AS but were found to be HLA-B27 positive (HLA-B27+ group), and 16 normal healthy individuals (Healthy group)...
February 7, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28154246/steering-of-carcinoma-progression-by-the-yin-yang-interaction-of-stat1-stat3
#16
Karlheinz Friedrich, Helmut Dolznig, Xiaonan Han, Richard Moriggl
STAT1/STAT3 transcription factors are important regulators for development of normal, infected or inflammed cells. They are also critically involved in the progression of various malignant tumours, including epithelial-derived carcinomas. Here, we focus on colorectal cancer (CRC) insights for STAT1/3, where controversial functions for STAT3 were reported. For a long time STAT3 has been regarded as a driver of tumour malignancy and its activation was associated with negative clinical outcome. In contrast, STAT1 was generally viewed as an independent tumour suppressor and positive prognostic marker...
February 2, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28154245/role-of-trpv-channels-in-regulating-various-pancreatic-%C3%AE-cell-functions-lessons-from-in-vitro-studies
#17
Marek Skrzypski, Maria Billert, Stefan Mergler, Noushafarin Khajavi, Krzysztof W Nowak, Mathias Z Strowski
Pancreatic β-cell functions are regulated by a variety of endogenous and exogenous factors. Calcium is one of the most potent triggers of β-cell growth, insulin production and exocytosis. Recently, others and we showed that TRPV channels are expressed in insulin producing cell lines and/or primary β-cells. These channels modulate calcium ions, insulin secretion and cell proliferation. Besides the classical roles of TRPV channels in the sensory system, there are also novel functions described in non-excitable cells such as in insulin-producing β-cells...
February 2, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28154340/yangjing-capsule-extract-promotes-proliferation-of-gc-1-spg-cells-via-up-regulated-pou3f1-pathway
#18
Baofang Jin, Bin Cai, Dalin Sun, Xindong Zhang, Yugui Cui, Weimin Deng, Chao Gao
As is similar to glial cell line-derived neurotrophic factor (GDNF), the Yangjing Capsule (YC) extract could also lead to proliferation of spermatogonial stem cells (SSCs) by stimulating the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway; however, the regulatory effect of YC extract on the expression of POU3F1 still remains unknown. The objective of this study is to determine whether the transcription factor POU3F1 is up-regulated by YC extract through the PI3K/AKT signaling pathway to regulate SSCs survival and proliferation...
January 31, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28133000/progress-of-research-on-micrornas-with-diagnostic-value-in-asbestos-exposure-a-call-for-method-standardization
#19
Luigina Micolucci, Maria Rita Rippo, Fabiola Olivieri, Antonio Domenico Procopio
Malignant mesothelioma (MM) is an insidious, lethal asbestos-related cancer that is poorly responsive to current treatments. Specific and sensitive biomarkers providing early MM diagnosis in exposed subjects, who are at high-risk of developing it, are sorely needed. MicroRNAs (miRNAs) are endogenous, non-coding, small RNAs with a well-established diagnostic role in cancer and pollution exposure. In a recent systematic review and qualitative meta-analysis followed by a functional investigation, we examined all the available data on the miRNA biomarkers involved in asbestos exposure and MM pathways...
January 30, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28132999/trends-and-characteristics-of-all-cause-mortality-among-hiv-infected-inpatients-during-the-haart-era-2006-2015-in-shanghai-china
#20
Yongjia Ji, Zhenyan Wang, Jiayin Shen, Jun Chen, Junyang Yang, Tangkai Qi, Wei Song, Yang Tang, Li Liu, Yinzhong Shen, Renfang Zhang, Hongzhou Lu
Globally, the overall mortality rate among HIV-infected patients has significantly declined during the HAART era. Deaths among HIV-infected inpatients need to be characterized in order to formulate intervention strategies to further improve medical care for this population and their prognosis. In the current study, deaths among HIV-infected inpatients from 2006 to 2015 at a medical center for HIV infection and AIDS patient care in Shanghai, China were retrospectively analyzed. Trends in mortality rates and the proportion of deaths caused by AIDS or non-AIDS-related illnesses were evaluated...
January 30, 2017: Bioscience Trends
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