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Shusong Zhang, Xingbin Sun, Xuming Wang, Tianlei Qiu, Min Gao, Yanmei Sun, Shoutao Cheng, Qingjing Zhang
A newly isolated and identified Diaphorobacter polyhydroxybutyrativorans strain (SL-205) was employed to enhance the denitrification performance of a laboratory-scale solid-phase denitrification (SPD) reactor using poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) as a carbon source, and dynamic variations in microbial communities in the reactor were investigated. Results indicated that bioaugmentation with strain SL-205 enabled rapid reactor startup and improved denitrification performance relative to the reactor inoculated with activated sludge...
May 9, 2018: Bioresource Technology
Jianhe Wang, Jing Wang, Lian-Hui Zhang
Pseudomonas aeruginosa is known to cause life-threatening infections. The previous studies showed that the type III secretion system (T3SS) of this pathogen is a key virulence determinant, which is activated by polyamines signals spermidine (Spd) and spermine (Spm) from mammalian host. To test the potential of blocking host-pathogen communication in disease control, in this study we developed a high potency mouse monoclonal antibody (Mab 4E4, IgG1 sub-isotype) by using Spm-protein conjugate as an immunogen...
May 14, 2018: Microbial Biotechnology
Priscilla Novak, Andrew C Anderson, Jie Chen
The Affordable Care Act (ACA) aims to expand health insurance coverage and minimize financial barriers to receiving health care services for individuals. However, little is known about how the ACA has impacted individuals with mental health conditions. This study finds that the implementation of the ACA is associated with an increase in rate of health insurance coverage among nonelderly adults with serious psychological distress (SPD) and a reduction in delaying and forgoing necessary care. The ACA also reduced the odds of an individual with SPD not being able to afford mental health care...
May 12, 2018: Administration and Policy in Mental Health
Myrela O Machado, Cristiano A Köhler, Brendon Stubbs, Paulo R Nunes-Neto, Ai Koyanagi, João Quevedo, Jair C Soares, Thomas N Hyphantis, Donatella Marazziti, Michael Maes, Dan J Stein, André F Carvalho
OBJECTIVE: Evidence suggests that skin picking disorder (SPD) could be a prevalent condition associated with comorbidity and psychosocial dysfunction. However, just a few studies have assessed the prevalence and correlates of SPD in samples from low- and middle-income countries. In addition, the impact of SPD on quality of life (QoL) dimension after multivariable adjustment to potential confounders remains unclear. METHODS: Data were obtained from a Brazilian anonymous Web-based research platform...
May 7, 2018: CNS Spectrums
Tor Gunnar Værnes, Jan Ivar Røssberg, Paul Møller
BACKGROUND: Basic self-disturbance (BSD) is proposed to constitute the clinical core of schizophrenia spectrum disorders, including prodromal states and schizotypy. Anomalous self-experiences (ASEs) are suggested as phenotypic variants of BSD, representing markers of schizophrenia vulnerability. However, ASEs are not restricted to the schizophrenia spectrum, but may also occur in non-psychotic states like depersonalization disorder (DPD). It is unclear to what extent the prevalence and nature of ASEs are differing between the two conditions...
May 4, 2018: Psychopathology
Anne Schienle, Jonas Potthoff, Albert Wabnegger
BACKGROUND: Skin-picking disorder (SPD) is characterized by the excessive and repetitive manipulation of one's own skin resulting in tissue damage and impaired social functioning. There are only a few studies with small sample sizes that examined possible brain abnormalities in SPD, which is classified as a syndrome related to obsessive-compulsive disorders (OCD). METHOD: The current voxel-based morphometry (VBM) study compared data from 35 SPD patients and 35 control participants including both genders (mean age = 35 years, SD = 15)...
April 26, 2018: Comprehensive Psychiatry
Yoon Young Choi, Hyunki Kim, Su-Jin Shin, Ha Yan Kim, Jinae Lee, Han-Kwang Yang, Woo Ho Kim, Young-Woo Kim, Myeong-Cherl Kook, Young Kyu Park, Hyung-Ho Kim, Hye Seung Lee, Kyung Hee Lee, Mi Jin Gu, Seung Ho Choi, SoonWon Hong, Jong Won Kim, Woo Jin Hyung, Sung Hoon Noh, Jae-Ho Cheong
OBJECTIVE: We investigated microsatellite instability (MSI) status and programed cell death ligand 1 (PD-L1) expression as predictors of prognosis and responsiveness to chemotherapy for stage II/III gastric cancer. BACKGROUND: The clinical implications of MSI status and PD-L1 expression in gastric cancer have not been well-elucidated. METHODS: Tumor specimens and clinical information were collected from patients enrolled in the CLASSIC trial-a randomized controlled study of capecitabine plus oxaliplatin-based adjuvant chemotherapy...
May 1, 2018: Annals of Surgery
Rui Zhao, Yuan Chang, Xianqiang Wang, Peng Zhang, Cheng Zhang, Peilong Lian
It is not known whether pylorus-preserving pancreaticoduodenectomy (PPPD) is as effective as the standard pancreaticoduodenectomy (SPD) in the treatment of duodenal papilla carcinoma (DPC). A retrospective cohort trial was undertaken to compare the results of these two procedures. Clinical data, histological findings, short-term results, survival and quality of life of all patients who had undergone surgery for primary DPC between January 2003 and February 2010 were analyzed. According to the inclusion criteria and the surgical methods, 116 patients were divided into the PPPD group (n=43) and the SPD group (n=73)...
May 2018: Oncology Letters
Ya Sheng Wu, Shi Rong Guo, Jie Zhang, Nan Shan Du, Jin Sun
Effects of spermidine (Spd) and arbuscular mycorrhizal fungi (AMF) on the growth and photosynthesis of cucumber (Cucumis sativus L., cv. Jinchun 2) seedlings, fruit yield and quality, microorganism and enzymatic activity in rhizosphere were investigated. The results showed that combined Spd and AMF addition significantly promoted the growth of cucumber seedlings, increased the root activity, fruit production and quality, enhanced nutrients absorption of seedlings. Net photosynthetic rate, actual photochemical efficiency, light quantum efficiency, carboxylation efficiency and light respiration rate of cucumber seedlings were increased by combined addition of Spd and AMF...
March 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Kosei Kudo, Chengwei Liu, Tomoyuki Matsumoto, Atsushi Minami, Taro Ozaki, Hiroaki Toshima, Katsuya Gomi, Hideaki Oikawa
Indole sesquiterpene sespendole, isolated from filamentous fungus Pseudobotrytis terrestris FKA-25, is a specific inhibitor of lipid droplet synthesis in mouse macrophages. The biosynthetic pathway that involves genes encoding six enzymes (spdEMBQHJ) was elucidated through heterologous expression of spd genes in Aspergillus oryzae, biotransformation experiments, and in vitro enzymatic reactions with a recombinant protein, thereby revealing the mechanism underlying the characteristic modification on the indole ring, catalyzed by a set of prenyltransferase (SpdE)/cytochrome P450 (SpdJ) enzymes...
May 2, 2018: Chembiochem: a European Journal of Chemical Biology
Keiji Tensho, Hiroki Shimodaira, Yusuke Akaoka, Suguru Koyama, Daisuke Hatanaka, Shota Ikegami, Hiroyuki Kato, Naoto Saito
BACKGROUND: The tibial tubercle deviation associated with recurrent patellar dislocation (RPD) has not been studied sufficiently. New methods of evaluation were used to verify the extent of tubercle deviation in a group with patellar dislocation compared with that in a control group, the frequency of patients who demonstrated a cutoff value indicating that tubercle transfer was warranted on the basis of the control group distribution, and the validity of these methods of evaluation for diagnosing RPD...
May 2, 2018: Journal of Bone and Joint Surgery. American Volume
Chunhua Bi, Deyu Huang, Jing Jiang, Yueping Jiang, Hui Wang, Cheng Bian, Zibin Tian
Background/aim: This study aimed to assess expression changes of serum sPD-1 levels in HBeAg-positive chronic hepatitis B patients with entecavir treatment and explore the correlation with the curative effect. Materials and methods: A total of 220 HBeAg-positive CHB patients and 207 healthy individuals were included. sPD-1 levels and virological and biochemical responses were assessed at baseline and at 12, 24, and 48 weeks in CHB patients after antiviral therapy. Results: sPD-1 levels in HBeAg-positive CHB patients before treatment were significantly lower than those of healthy controls...
April 30, 2018: Turkish Journal of Medical Sciences
Yongzhen Zhao, Yumei Jia, Chunsheng Li, Rui Shao, Yingying Fang
OBJECTIVE: Programmed death-1 (PD-1)/programmed death ligand-1 (PD-L1) exists in both membrane-bound and soluble forms. In this study, we evaluated the predictive value of soluble PD-1 (sPD-1) for severity and 28-day mortality in patients with severe sepsis and septic shock during the first week in an intensive care unit (ICU). METHODS: In this prospective cohort study, patients were classified into the severe sepsis group or the septic shock group according to the severity of their condition on ICU admission...
April 26, 2018: Shock
Wei-Wen Zhu, Fan Xiao, Yi-Yun Tang, Wei Zou, Xiang Li, Ping Zhang, Ai-Ping Wang, Xiao-Qing Tang
Hyperglycemia-induced neurotoxicity involves in the pathogenesis of diabetic encephalopathy and neuronal senescence is one of the worst effects of hyperglycemic neurotoxicity. Cannabinoid receptor type 1 (CB1) has neuroprotective function in a series of neuropathy. Spermidine (Spd) has anti-aging function in many tissues. However, the role of Spd in hyperglycemia-induced neuronal senescence remains unexplored. Therefore, we used high glucose (HG)-treated HT-22 cell as vitro model to investigate whether Spd protects neurons against hyperglycemia-induced senescence and the mediatory role of CB1 receptor...
April 26, 2018: Clinical and Experimental Pharmacology & Physiology
Xiaofang Guo, Juan Wang, Jietian Jin, Hao Chen, Zijun Zhen, Wenqi Jiang, Tongyu Lin, Huiqiang Huang, Zhongjun Xia, Xiaofei Sun
Blockade of the programmed cell death 1-programmed cell death ligand 1 pathway is a new and promising therapeutic approach in Hodgkin lymphoma (HL). To our knowledge, the impact of soluble programmed cell death ligand 1 (sPD-L1) serum levels on HL patient prognosis has not yet been investigated. In this study, the prognostic value of sPD-L1 was assessed in patients with HL. We measured serum sPD-L1 levels and identified their prognostic value in 108 newly diagnosed HL patients using an enzyme-linked immunosorbent assay (ELISA)...
April 23, 2018: Translational Oncology
Li Jie Li, Wan Rong Gu, Yao Meng, Yue Li Wang, Jun Yi Mu, Jing Li, Shi Wei
To explore the role of exogenous spermidine (Spd) in enhancing the resistance of maize to drought stress, 15% polyethylene glycol (PEG-6000) was used to simulate drought stress and with 'Xianyu 335' (drought-insensitive) and 'Fenghe 1' (drought sensitive) as the experiment materials, the effects of Spd (0.1 mmol·L-1 ) on the growth, photosynthetic characteristics, chlorophyll content, osmotic adjustment substance, membrane lipid peroxidation and root activity of maize seedlings were investigated. The results showed that the application of Spd significantly promoted the growth of maize seedlings under drought stress, increased chlorophyll content, net photosynthetic rate (Pn ), stomatal conductance (gs ), transpiration rate (Tr ) and water use efficiency (WUE), and decreased the enhancement of intercellular carbon dioxide concentration (Ci ) in 'Fenghe 1'...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Ying Wang, Shirong Guo, Lei Wang, Liwei Wang, Xueying He, Sheng Shu, Jin Sun, Na Lu
BACKGROUND: High-temperature stress inhibited the growth of cucumber seedlings. Foliar spraying of 1.0 mmol·L- 1 exogenous spermidine (Spd) to the sensitive cucumber cultivar 'Jinchun No. 2' grown at high-temperature (42 °C/32 °C) in an artificial climate box improved the high-temperature tolerance. Although there have been many reports on the response of microRNAs (miRNAs) to high-temperature stress, the mechanism by which exogenous Spd may mitigate the damage of high-temperature stress through miRNA-mediated regulation has not been studied...
April 24, 2018: BMC Genomics
Austin W Blum, Samuel R Chamberlain, Michael D Harries, Brian L Odlaug, Sarah A Redden, Jon E Grant
Excoriation (skin-picking) disorder (SPD) has similarities to obsessive-compulsive disorder (OCD) and is included within the obsessive-compulsive and related disorders (OCRD) diagnostic class in DSM-5. Separate neuroimaging and neurocognitive studies suggest that people affected by SPD find it difficult to inhibit dominant motor responses due to a failure of "top-down" control mechanisms. No study has examined the neural correlates of SPD in participants with varying degrees of impulsive motor behavior...
April 24, 2018: Journal of Neuropsychiatry and Clinical Neurosciences
D Rittel, K Shemtov-Yona, R Lapovok
Severe plastic deformation (SPD) has long been known to confer superior mechanical properties for many metals and alloys. In the general field of biomedical devices, and dental implants in particular, the superior strength of SPD-processed commercially pure (CP) titanium, that may surpass that of the stronger Ti6Al4V alloy, has been associated with a superior fatigue resistance. Such a property would make those materials both biocompatible and strong alternatives to the currently used titanium alloy. However, the fatigue characterization reported so far in the literature relies on a very small sample size, thereby precluding any meaningful statistical analysis...
April 14, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Zehong Chen, Kang Hu, Lieting Feng, Ruxiong Su, Nan Lai, Zike Yang, Shijun Kang
Various types of vaccines have been proposed as approaches for prevention or delay of the onset of cancer by boosting the endogenous immune system. We previously developed a senescent-cell-based vaccine, induced by radiation and veliparib, as a preventive and therapeutic tool against triple-negative breast cancer. However, the PD-1/PD-L1 pathway was found to play an important role in vaccine failure. Hence, we further developed sPD1-expressing senescent cells to overcome PD-L1/PD1-mediated immune suppression while vaccinating to promote dendritic cells (DCs) maturity, thereby amplifying T cell activation...
April 20, 2018: Cancer Science
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