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https://www.readbyqxmd.com/read/28735504/low-genetic-diversity-and-functional-constraint-of-mirna-genes-participating-pollen-pistil-interaction-in-rice
#1
Kun Wang, Xin Wang, Ming Li, Tao Shi, Pingfang Yang
In this study, we sequenced and analyzed the expression and evolution of rice miRNA genes participating pollen-pistil interaction that is crucial to rice yield. Pollen-pistil interaction is an essential reproductive process for all flowering plants. While microRNAs (miRNAs) are important noncoding small RNAs that regulate mRNA levels in eukaryotic cells, there is little knowledge about which miRNAs involved in the early stages of pollen-pistil interaction in rice and how they evolve under this conserved process...
July 22, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28735463/impact-of-pioglitazone-on-bone-mineral-density-and-bone-marrow-fat-content
#2
L M Pop, I Lingvay, Q Yuan, X Li, B Adams-Huet, N M Maalouf
Pioglitazone use is associated with an increased risk of fractures. In this randomized, placebo-controlled study, pioglitazone use for 12 months was associated with a significant increase in bone marrow fat content at the femoral neck, accompanied by a significant decrease in total hip bone mineral density. The change in bone marrow fat with pioglitazone use was predominantly observed in female vs. male participants. INTRODUCTION: Use of the insulin sensitizer pioglitazone is associated with greater fracture incidence, although the underlying mechanisms are incompletely understood...
July 22, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28735441/pathology-of-neuroendocrine-tumours-of-the-female-genital-tract
#3
REVIEW
Brooke E Howitt, Paul Kelly, W Glenn McCluggage
Neuroendocrine tumours are uncommon or rare at all sites in the female genital tract. The 2014 World Health Organisation (WHO) Classification of neuroendocrine tumours of the endometrium, cervix, vagina and vulva has been updated with adoption of the terms low-grade neuroendocrine tumour and high-grade neuroendocrine carcinoma. In the endometrium and cervix, high-grade neoplasms are much more prevalent than low-grade and are more common in the cervix than the corpus. In the ovary, low-grade tumours are more common than high-grade carcinomas and the term carcinoid tumour is still used in WHO 2014...
September 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28735439/surgical-management-of-periocular-cancers-high-and-low-risk-features-drive-treatment
#4
REVIEW
Richard C Allen
PURPOSE OF REVIEW: Recent advances in the treatment of eyelid tumors have centered on the excision, evaluation of margins, role of sentinel lymph node biopsy, and adjunctive/adjuvant systemic and radiation therapy. The purpose of this review is to elaborate on these advances. RECENT FINDINGS: Mohs excision of basal cell carcinoma and squamous cell carcinoma continues to provide the greatest success in complete excision of the cancer, especially in those cases of high-risk disease including medial canthal location and recurrent disease...
September 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28735324/study-of-acid-phosphatase-in-solubilization-of-inorganic-phosphates-by-piriformospora-indica
#5
Swetha Seshagiri, Padmavathi Tallapragada
Phosphorus is an essential plant macronutrient present in the soil. Only a small portion of phosphorus in soil is taken up by plants and the rest of it becomes unavailable to plants as it is immobilized. Phosphate solubilizing microorganisms play a vital role in converting the insoluble form of phosphates to the soluble form. The present paper reports the solubilization of tricalcium phosphate, rock phosphate, single super phosphate, zinc phosphate and aluminum phosphate by Piriformospora indica with the production of organic acids as well as acid phosphatase...
January 2, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28735080/recombinant-truncated-e-protein-as-a-new-vaccine-candidate-against-nontypeable-h-influenzae-its-expression-and-immunogenic-evaluation
#6
Ava Behrouzi, Saeid Bouzari, Farzam Vaziri, Abolfazl Fateh, Parviz Afrough, Atefeh Davoudi Vijeh Motlagh, Seyed Davar Siadat
Protein E (PE) is a conserved entity observed in both nontypeable Haemophilus influenzae (NTHi) and encapsulated H. influenzae. This is a small surface lipoprotein, consisting of only 160 amino acids, involved in the adhesion of H. influenzae to various types of epithelial cells. A 384-bp-long fragment from NTHi PE was cloned into the prokaryotic expression vector pBAD-gIIIA. The recombinant protein was expressed with arabinose and then purified by affinity purification on an Ni-NTA agarose matrix. BALB/c mice were immunized by subcutaneous injection with purified recombinant truncated PE mixed with an alum adjuvant...
July 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28734992/endoscopic-muscle-biopsy-emb-of-the-duodenum-and-rectum-a-pilot-survival-study-in-a-porcine-model-to-detect-myenteric-neurons
#7
E Rajan, B Al-Bawardy, C J Gostout, L M Wong Kee Song, J L Deters, M A Knipschield, C E Bernard, G Farrugia
BACKGROUND AND AIMS: Small bowel and colorectal muscle biopsies require a surgical approach. Advancing our understanding of the pathophysiology of motility disorders, such as functional bowel disorders, intestinal pseudo-obstruction and slow transit constipation, is hindered by our inability to non-invasively obtain muscularis propria (MP) for evaluation of multiple cell types, including myenteric neurons. The aims of this study were to determine (1) technical feasibility, reproducibility and safety of performing duodenal endoscopic muscle biopsy (dEMB) and rectal endoscopic muscle biopsy (rEMB) using a clip-assist technique; and (2) presence of myenteric neurons in tissue samples...
July 19, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28734965/enhanced-immunostimulatory-activity-of-in-silico-discovered-agonists-of-toll-like-receptor-2-tlr2
#8
M S Murgueitio, S Ebner, P Hörtnagl, C Rakers, R Bruckner, P Henneke, G Wolber, S Santos-Sierra
BACKGROUND: Emergent therapies in anticancer vaccination use Toll-like receptors (TLRs) agonists as dendritic cell (DC) vaccine adjuvants. DCs from the patient are isolated, stimulated with TLR agonists and tumor antigens ex vivo and then infused back into the patient. Although some TLR ligands have been tested in clinical trials, novel TLR agonists with improved immunomodulatory properties are essential to optimize treatment success. We report on the discovery of small-molecule TLR2 agonists, with favorable properties as synthetic adjuvants...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28734933/photosystem-ii-cyclic-electron-flow-powers-exceptional-photoprotection-and-record-growth-in-the-microalga-chlorella-ohadii
#9
Gennady Ananyev, Colin Gates, Aaron Kaplan, G Charles Dismukes
The desert microalga Chlorella ohadii was reported to grow at extreme light intensities with minimal photoinhibition, tolerate frequent de/re-hydrations, yet minimally employs antenna-based non-photochemical quenching for photoprotection. Here we investigate the molecular mechanisms by measuring Photosystem II charge separation yield (chlorophyll variable fluorescence, Fv/Fm) and flash-induced O2 yield to measure the contributions from both linear (PSII-LEF) and cyclic (PSII-CEF) electron flow within PSII. Cells grow increasingly faster at higher light intensities (μE/m(2)/s) from low (20) to high (200) to extreme (2000) by escalating photoprotection via shifting from PSII-LEF to PSII-CEF...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28734932/a-pyridone-derivative-activates-serca2a-by-attenuating-the-inhibitory-effect-of-phospholamban
#10
Manami Kaneko, Hisato Yamamoto, Hiroki Sakai, Yusuke Kamada, Toshiki Tanaka, Shuji Fujiwara, Synsuke Yamamoto, Hiroki Takahagi, Hideyuki Igawa, Shizuo Kasai, Masakuni Noda, Makoto Inui, Tomoyuki Nishimoto
The cardiac sarco/endoplasmic reticulum Ca(2+)-dependent ATPase 2a (SERCA2a) plays a central role in Ca(2+) handling within cardiomyocytes and is negatively regulated by phospholamban (PLN), a sarcoplasmic reticulum (SR) membrane protein. The activation of SERCA2a, which has been reported to improve cardiac dysfunction in heart failure, is a potential therapeutic approach for heart failure. Therefore, we developed a novel small molecule, compound A and characterized it both in vitro and in vivo. Compound A activated the Ca(2+)-dependent ATPase activity of cardiac SR vesicles but not that of skeletal muscle SR vesicles that lack PLN...
July 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28734866/label-free-profiling-of-cell-dynamics-a-sequence-of-impedance-based-assays-to-estimate-tumor-cell-invasiveness-in-vitro
#11
Orsolya Láng, L Ai, Joachim Wegener
Dynamic properties of cancer cells, most notably their ability to migrate, have been correlated successfully with their invasive nature in vivo. To establish a stronger experimental basis for such a correlation we subjected five different cancer cell lines of well-defined metastatic potential to a sequence of three independent assays reporting on three different aspects of cell dynamics, namely (1) the kinetics of cell spreading, (2) cell shape fluctuations, and (3) cell migration. The sequentially applied assays correspond to different measuring modes of the well-established ECIS technique that is based on non-invasive and label-free impedance readings of planar gold-film electrodes that serve as the growth substrate for the cells under study...
July 19, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28734822/icotinib-versus-whole-brain-irradiation-in-patients-with-egfr-mutant-non-small-cell-lung-cancer-and-multiple-brain-metastases-brain-a-multicentre-phase-3-open-label-parallel-randomised-controlled-trial
#12
Jin-Ji Yang, Caicun Zhou, Yisheng Huang, Jifeng Feng, Sun Lu, Yong Song, Cheng Huang, Gang Wu, Li Zhang, Ying Cheng, Chengping Hu, Gongyan Chen, Li Zhang, Xiaoqing Liu, Hong Hong Yan, Fen Lai Tan, Wenzhao Zhong, Yi-Long Wu
BACKGROUND: For patients with non-small-cell lung cancer (NSCLC) and multiple brain metastases, whole-brain irradiation (WBI) is a standard-of-care treatment, but its effects on neurocognition are complex and concerning. We compared the efficacy of an epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI), icotinib, versus WBI with or without chemotherapy in a phase 3 trial of patients with EGFR-mutant NSCLC and multiple brain metastases. METHODS: We did a multicentre, open-label, parallel randomised controlled trial (BRAIN) at 17 hospitals in China...
July 19, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28734820/brain-metastases-in-patients-with-egfr-mutant-non-small-cell-lung-cancer
#13
Rafael Rosell, Niki Karachaliou
No abstract text is available yet for this article.
July 19, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28734806/snora21-an-oncogenic-small-nucleolar-rna-with-a-prognostic-biomarker-potential-in-human-colorectal-cancer
#14
Kazuhiro Yoshida, Shusuke Toden, Wenhao Weng, Kunitoshi Shigeyasu, Jinsei Miyoshi, Jacob Turner, Takeshi Nagasaka, Yanlei Ma, Tetsuji Takayama, Toshiyoshi Fujiwara, Ajay Goel
BACKGROUND: Emerging evidence indicates that small nucleolar RNAs (snoRNAs) play a central role in oncogenesis. Herein, we systematically evaluated expression profiles of snoRNAs in colorectal cancer (CRC) and investigated their clinical and functional role in this malignancy. METHODS: We compared expression levels of snoRNAs between cancer and normal tissues using publicly available datasets and identified the most differentially expressed and commonly upregulated snoRNAs in CRC...
July 12, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28734679/assessment-of-biodistribution-using-mesenchymal-stromal-cells-algorithm-for-study-design-and-challenges-in-detection-methodologies
#15
Blanca Reyes, Maria Isabel Coca, Margarita Codinach, María Dolores López-Lucas, Anna Del Mazo-Barbara, Marta Caminal, Irene Oliver-Vila, Valentín Cabañas, Silvia Lope-Piedrafita, Joan García-López, José M Moraleda, Cesar G Fontecha, Joaquim Vives
BACKGROUND AIMS: Biodistribution of candidate cell-based therapeutics is a critical safety concern that must be addressed in the preclinical development program. We aimed to design a decision tree based on a series of studies included in actual dossiers approved by competent regulatory authorities, noting that the design, execution and interpretation of pharmacokinetics studies using this type of therapy is not straightforward and presents a challenge for both developers and regulators...
July 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28734676/analyses-of-clinical-and-laboratory-characteristics-of-dengue-adults-at-their-hospital-presentations-based-on-the-world-health-organization-clinical-phase-framework-emphasizing-risk-of-severe-dengue-in-the-elderly
#16
Hong-Jie Kuo, Ing-Kit Lee, Jien-Wei Liu
BACKGROUND/PURPOSE: Dengue clinically dynamically changes over time; the World Health Organization (WHO) dengue classification framework proposed 3 dengue clinical phases-febrile (days 1-3), critical (days 4-6) and recovery (days ≥7) phases. This study aimed to better understand clinical and laboratory characteristics in adults (≥18 years) suffering dengue in different clinical phases at their hospital presentations. METHODS: A retrospective analysis of adults suffering dengue between 2008 and 2014...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28734581/discovery-of-r-5-benzo-d-1-3-dioxol-5-yl-7-1-vinylsulfonyl-pyrrolidin-2-yl-methyl-7h-pyrrolo-2-3-d-pyrimidin-4-amine-b6-as-a-potent-bmx-inhibitor-for-the-treatment-of-nsclc
#17
Linhong He, Da Li, Chufeng Zhang, Peng Bai, Lijuan Chen
Described as a Btk inhibitor, ibrutinib also potently inhibits Bmx and EGFR, two good targets for lung cancer. Owing to its high CLogP (4.07) and low aqueous solubility (<0.01mg/ml), resulting in unfavorable bioavailability, ibrutinib requires high dosages to achieve good clinical response in the treatment of non-small cell lung cancer (NSCLC). In our effort to improve the CLogP of ibrutinib by structural optimization led to the discovery of a potent anti-cancer agent B6, with beneficial physicochemical parameters (CLogP=2...
July 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28734552/prevalence-and-predictive-value-of-pre-therapeutic-sarcopenia-in-cancer-patients-a-systematic-review
#18
REVIEW
Frédéric Pamoukdjian, Thierry Bouillet, Vincent Lévy, Michael Soussan, Laurent Zelek, Elena Paillaud
BACKGROUND & AIMS: To assess the prevalence of sarcopenia before cancer treatment and its predictive value during the treatment. METHODS: We searched MEDLINE via PubMed for articles published from 2008 to 2016 that reported prospective observational or interventional studies of the prevalence of pre-therapeutic sarcopenia and its consequences in adults with cancer who were 18 years or older. Two independent reviewers selected articles based on titles and/or abstracts before a complete review...
July 13, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28734548/ubiquitin-like-modifications-in-the-dna-damage-response
#19
REVIEW
Zhifeng Wang, Wei-Guo Zhu, Xingzhi Xu
Genomic DNA is damaged at an extremely high frequency by both endogenous and environmental factors. An improper response to DNA damage can lead to genome instability, accelerate the aging process and ultimately cause various human diseases, including cancers and neurodegenerative disorders. The mechanisms that underlie the cellular DNA damage response (DDR) are complex and are regulated at many levels, including at the level of post-translational modification (PTM). Since the discovery of ubiquitin in 1975 and ubiquitylation as a form of PTM in the early 1980s, a number of ubiquitin-like modifiers (UBLs) have been identified, including small ubiquitin-like modifiers (SUMOs), neural precursor cell expressed, developmentally down-regulated 8 (NEDD8), interferon-stimulated gene 15 (ISG15), human leukocyte antigen (HLA)-F adjacent transcript 10 (FAT10), ubiquitin-fold modifier 1 (UFRM1), URM1 ubiquitin-related modifier-1 (URM1), autophagy-related protein 12 (ATG12), autophagy-related protein 8 (ATG8), fan ubiquitin-like protein 1 (FUB1) and histone mono-ubiquitylation 1 (HUB1)...
July 11, 2017: Mutation Research
https://www.readbyqxmd.com/read/28734227/continuous-delivery-of-neutralizing-antibodies-elevate-ccl2-levels-in-mice-bearing-mcf10ca1d-breast-tumor-xenografts
#20
Min Yao, Curtis Smart, Qingting Hu, Nikki Cheng
Chemokines are small soluble molecules that play critical roles in wound healing, infection, and cancer progression. In particular, overexpression of the C-C motif chemokine ligand 2 (CCL2) in multiple cancer types correlates with poor patient prognosis. Animal studies have shown that CCL2 signals to macrophages and breast cancer cells to promote tumor growth, invasion, and metastasis, indicating that CCL2 is a promising therapeutic target. However, the effectiveness of human-specific neutralizing antibodies has not been fully evaluated...
July 19, 2017: Translational Oncology
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