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https://www.readbyqxmd.com/read/29792376/somatic-ace-regulates-self-renewal-of-mouse-spermatogonial-stem-cells-via-the-mapk-signaling-pathway
#1
Tingting Gao, Xin Zhao, Chenchen Liu, Binbin Shao, Xi Zhang, Kai Li, Jinyang Cai, Su Wang, Xiaoyan Huang
Spermatogonial stem cell (SSC) self-renewal is an indispensable part of spermatogenesis. Angiotensin I-converting enzyme (ACE) is a zinc dipeptidyl carboxypeptidase that plays a critical role in regulation of the renin-angiotensin system. Here, we used RT-PCR and Western blot analysis to confirm that somatic ACE (sACE) but not testicular ACE (tACE) is highly expressed in mouse testis before postpartum day 7 and in cultured SSCs. Our results revealed that sACE is located on the membrane of SSCs. Treating cultured SSCs with the ACE competitive inhibitor captopril was found to inhibit sACE activity, and significantly reduced the proliferation rate of SSCs...
May 24, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29792121/abcg2-polymorphism-rs2231142-and-hypothyroidism-in-metastatic-renal-cell-carcinoma-patients-treated-with-sunitinib
#2
Emilie Werbrouck, Julie Bastin, Diether Lambrechts, Annelies Verbiest, Thomas Van Brussel, Evelyne Lerut, Jean-Pascal Machiels, Vincent Verschaeve, Vincent Richard, Philip R Debruyne, Brigitte Decallonne, Patrick Schöffski, Oliver Bechter, Pascal Wolter, Benoit Beuselinck
Background and aim Vascular endothelial growth factor receptor tyrosine kinase inhibitors (VEGFR-TKIs) cause significant adverse events including thyroid dysfunction, mainly hypothyroidism, in a considerable proportion of patients. In a series of metastatic renal cell carcinoma (mRCC) patients treated with sunitinib, we aimed to study the correlation between hypothyroidism and single nucleotide polymorphisms (SNPs) in genes involved in sunitinib pharmacokinetics and pharmacodynamics. Patients and methods We included 79 mRCC patients who started sunitinib between November 2005 and March 2016...
May 23, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29791464/the-influence-of-increased-distal-loading-on-metabolic-cost-efficiency-and-kinematics-of-roller-ski-skating
#3
Conor M Bolger, Veronica Bessone, Peter Federolf, Gertjan Ettema, Øyvind Sandbakk
The purpose of the present study was to examine the influence of increased loading of the roller ski on metabolic cost, gross efficiency, and kinematics of roller ski skating in steep and moderate terrain, while employing two incline-specific techniques. Ten nationally ranked male cross-country skiers were subjected to four 7-minute submaximal intervals, with 0, 0.5, 1.0, and 1.5 kg added beneath the roller-ski in a randomized order. This was done on two separate days, with the G2 skating at 12% incline and 7 km/h speed and G3 skating at 5% incline and 14 km/h speed, respectively...
2018: PloS One
https://www.readbyqxmd.com/read/29790425/hypoxic-preconditioning-reduces-propofol-induced-neuroapoptosis-via-regulation-of-bcl-2-and-bax-and-downregulation-of-activated-caspase-3-in-the-hippocampus-of-neonatal-rats
#4
Jing Lv, Yubing Liang, Youbing Tu, Jing Chen, Yubo Xie
OBJECTIVE:  Evidence has shown that propofol may cause widespread apoptotic neurodegeneration. Hypoxic preconditioning (HPC) was previously demonstrated to provide neuroprotection and brain recovery from either acute or chronic neurodegeneration in several cellular and animal models. Therefore, the present study was designed to investigate the protective effects of hypoxic preconditioning on apoptosis caused by propofol in neonatal rats. METHODS: Propofol (100 mg/kg) was given to 7-day-old (P7) Sprague Dawley pups...
May 23, 2018: Neurological Research
https://www.readbyqxmd.com/read/29790270/metabolomics-reveals-the-key-role-of-oxygen-metabolism-in-the-heat-susceptibility-of-an-alpine-dwelling-ghost-moth-thitarodes-xiaojinensis-lepidoptera-hepialidae
#5
Wei Zhu, Qian Meng, Huan Zhang, Meng-Long Wang, Xuan Li, Hong-Tuo Wang, Gui-Ling Zhou, Lin Miao, Qi-Lian Qin, Ji-Hong Zhang
Ghost moths inhabiting the alpine meadows of the Tibetan Plateau are cold-adapted stenothermal organisms that are susceptible to heat (dead within 7 days of 27 °C exposure). Exploring the metabolic basis of their heat susceptibility would extend our understanding of the thermal biology of alpine dwelling invertebrates. Here, gas chromatography-mass spectrometry-based metabolomics was combined with physiological and transcriptional approaches to determine the metabolic mechanisms of heat susceptibility in Thitarodes xiaojinensis larvae...
May 23, 2018: Insect Science
https://www.readbyqxmd.com/read/29789162/fatigue-failure-load-of-an-adhesively-cemented-lithium-disilicate-glass-ceramic-conventional-ceramic-etching-vs-etch-prime-one-step-primer
#6
Maitê Munhoz Scherer, Catina Prochnow, Andressa Borin Venturini, Gabriel Kalil Rocha Pereira, Thiago Augusto de Lima Burgo, Marília Pivetta Rippe, Luiz Felipe Valandro
OBJECTIVES: To evaluate the effect of different glass-ceramic surface treatments and aging on the fatigue failure load of a lithium disilicate glass-ceramic adhesively cemented to a dentin analogue material. METHODS: One hundred and twenty (120) disc-shaped lithium disilicate specimens (Ø=10mm, thickness=1.5mm) were produced and randomly allocated (n=20) into 6 groups, considering 2 study factors: "surface treatment" in 3 levels (SIL-silane application only; HF5+SIL-5% hydrofluoric acid etching and silane application; ME&P-etching with an one-step ceramic primer), and "storage" in 2 levels (baseline-storage for 7 days; aging-storage for 90 days+12,000 thermal cycles)...
May 19, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29787570/adjuvant-chemotherapy-radiotherapy-chemotherapy-sandwich-protocol-in-resectable-soft-tissue-sarcoma-an-updated-single-center-analysis-of-104-cases
#7
Christoph Schliemann, Andrea Kerkhoff, Paula Hesse, Sebastian Bröckling, Jendrik Hardes, Arne Streitbürger, Dimosthenis Andreou, Georg Gosheger, Sandra Elges, Eva Wardelmann, Wolfgang Hartmann, Rolf Mesters, Georg Lenz, Normann Willich, Jan Kriz, Hans Eich, Wolfgang E Berdel, Torsten Kessler
Adjuvant therapy of local soft tissue sarcomas (STS) after wide surgical excision still is a topic under controversial scientific debate. In this single center report we have offered an adjuvant "sandwich" therapy protocol consisting of 4 cycles of doxorubicin (75 mg/m2 i.v. over 1 h on day 1) followed by ifosfamide (5 g/m2 i.v. over 24 h starting on day 1) and local radiotherapy scheduled between chemotherapy cycles 2 and 3 to 104 consecutive patients after wide surgical excision (R0) of histologically proven high-grade STS...
2018: PloS One
https://www.readbyqxmd.com/read/29787295/alertness-and-psychomotor-performance-levels-of-marine-pilots-on-an-irregular-work-roster
#8
Philippe Boudreau, Sylvain Lafrance, Diane B Boivin
Fatigue is recognized as an important safety concern in the transportation industry. In this study, our goal was to investigate how circadian and sleep-wake dependent factors influence St-Lawrence River pilots' sleep-wake cycle, alertness and psychomotor performance levels at work. A total of 18 male St-Lawrence River ship pilots were recruited to a 16-21-day field study. Pilots' chronotype, sleepiness and insomnia levels were documented using standardized questionnaires. Their sleep-wake cycle was documented by a sleep-wake log and wrist-worn activity monitoring...
May 22, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29785087/transcriptomic-impacts-of-rumen-epithelium-induced-by-butyrate-infusion-in-dairy-cattle-in-dry-period
#9
Ransom L Baldwin, Robert W Li, Yankai Jia, Cong-Jun Li
The purpose of this study was to evaluate the effects of butyrate infusion on rumen epithelial transcriptome. Next-generation sequencing (NGS) and bioinformatics are used to accelerate our understanding of regulation in rumen epithelial transcriptome of cattle in the dry period induced by butyrate infusion at the level of the whole transcriptome. Butyrate, as an essential element of nutrients, is a histone deacetylase (HDAC) inhibitor that can alter histone acetylation and methylation, and plays a prominent role in regulating genomic activities influencing rumen nutrition utilization and function...
2018: Gene Regulation and Systems Biology
https://www.readbyqxmd.com/read/29784132/effect-of-the-self-efficacy-enhancing-active-cycle-of-breathing-technique-on-lung-cancer-patients-with-lung-resection-a-quasi-experimental-trial
#10
Mei Yang, Jiu-di Zhong, Jun-E Zhang, Xiao-Xiao Huang, Chuan-Zhen Li, Zhang-Xiang Hong, Si-Wen Zhang
PURPOSE: Enhancing self-efficacy during the active cycle of breathing technique is essential for realizing the full benefit of pulmonary rehabilitation among lung cancer patients. This study aimed to explore the effect of self-efficacy-enhancing active cycle of breathing technique (SEE-ACBT) among patients with lung resection. METHOD: A quasi-experimental trial with a pre-post test design was performed. The control group (n = 81) received routine perioperative care, and the intervention group (n = 81) received SEE-ACBT in addition to routine perioperative care...
June 2018: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/29783630/does-molimina-indicate-ovulation-prospective-data-in-a-hormonally-documented-single-cycle-in-spontaneously-menstruating-women
#11
Jerilynn C Prior, Chiaki Konishi, Christine L Hitchcock, Elaine Kingwell, Patti Janssen, Anthony P Cheung, Nichole Fairbrother, Azita Goshtasebi
Approximately 33% of normal-length (21⁻35 days) cycles have subclinical ovulatory disturbances and lack sufficient progesterone, although their normal length ensures enough estrogen. Subclinical ovulatory disturbances are related to significant premenopausal spine bone loss (-0.86%/year). Molimina, non-distressing premenstrual experiences, may detect ovulation within normal-length cycles. This prospective study assessed the relationship between molimina and ovulation. After 1-cycle of daily diary and first morning urine collections, women answered the Molimina Question (MQ): " Can you tell by the way you feel that your period is coming? " and were invited to share (a) predictive premenstrual experience(s)...
May 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29782365/utilization-of-an-alternative-docetaxel-based-intraperitoneal-chemotherapy-regimen-in-patients-with-ovarian-fallopian-tube-or-primary-peritoneal-carcinoma-a-continued-need-for-ovarian-cancer-patients
#12
David A Becker, Charles A Leath, Christen L Walters-Haygood, Brentley Q Smith, Kerri S Bevis
OBJECTIVE: The objective of this study was to report the tolerability and toxicity of a regimen consisting of intravenous (IV) docetaxel and intraperitoneal (IP) cisplatin and paclitaxel with granulocyte colony-stimulating factor support. MATERIALS AND METHODS: We conducted a retrospective cohort study of patients with surgical stage II-IV epithelial ovarian, fallopian tube or primary peritoneal carcinoma treated with an outpatient IP chemotherapy regimen consisting of docetaxel 75 mg/m IV and cisplatin 75 mg/m IP day 1 followed by paclitaxel 60 mg/m IP day 8 every 21 days...
May 18, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29781867/accelerated-onset-of-retinal-toxicity-from-hydroxychloroquine-use-with-concomitant-breast-cancer-therapy
#13
Aman Sharma, Alejandra M Maiz, William R Tucker, Catherine Cukras
PURPOSE: To report a case of accelerated retinal toxicity due to hydroxychloroquine (HCQ) use for treatment of Sjögren syndrome in a patient treated with concomitant chemotherapy for breast cancer. METHODS: Observational case report. RESULTS: A 56-year-old white woman using 400 mg HCQ (7.1 mg/kg real body weight) daily for a total of 2 years and 10 months for treatment of Sjögren syndrome with concomitant use of docetaxel and cyclophosphamide therapy (21-day cycle, 4 cycles) followed by anastrozole for breast cancer, presented with visual complaints and findings of severe HCQ toxicity...
May 16, 2018: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29780777/retrospective-study-of-combination-chemotherapy-with-etoposide-and-ifosfamide-in-patients-with-heavily-pretreated-recurrent-or-persistent-epithelial-ovarian-cancer
#14
Wonkyo Shin, Hye-Joo Lee, Seong J Yang, E Sun Paik, Hyun-Jin Choi, Tae-Joong Kim, Chel Hun Choi, Jeong-Won Lee, Duk-Soo Bae, Byoung-Gie Kim
Objective: This retrospective study is to evaluate the efficacy and toxicity of combination chemotherapy with etoposide and ifosfamide (ETI) in the management of pretreated recurrent or persistent epithelial ovarian cancer (EOC). Methods: Patients with recurrent or persistent EOC who had measurable disease and at least one chemotherapy regimen were to receive etoposide at a dose of 100 mg/m2 /day intravenous (IV) on days 1 to 3 in combination with ifosfamide 1 g/m2 /day IV on days 1 to 5, every 21 days...
May 2018: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/29779078/effects-of-elevated-pressure-on-pseudanabaena-galeata-b%C3%A3-cher-in-varying-light-and-dark-environments
#15
Helayaye Damitha Lakmali Abeynayaka, Takashi Asaeda, M Harun Rashid
To understand the effect of the hydrostatic pressure on Pseudanabaena galeata Böcher cells in both stratified and frequently mixed lakes, separate laboratory-scale models were developed. The pressure conditions in the stratified and mixed lakes were simulated in those models, and the variations of the cell and chlorophyll-a (Chl-a) concentration were analyzed. It was observed that an increase in pressure and darkness significantly reduced the cell concentration and pigmentation in P. galeata (p < 0...
May 19, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29778738/risk-adapted-therapy-for-young-children-with-medulloblastoma-sjyc07-therapeutic-and-molecular-outcomes-from-a-multicentre-phase-2-trial
#16
Giles W Robinson, Vasilisa A Rudneva, Ivo Buchhalter, Catherine A Billups, Sebastian M Waszak, Kyle S Smith, Daniel C Bowers, Anne Bendel, Paul G Fisher, Sonia Partap, John R Crawford, Tim Hassall, Daniel J Indelicato, Frederick Boop, Paul Klimo, Noah D Sabin, Zoltan Patay, Thomas E Merchant, Clinton F Stewart, Brent A Orr, Jan O Korbel, David T W Jones, Tanvi Sharma, Peter Lichter, Marcel Kool, Andrey Korshunov, Stefan M Pfister, Richard J Gilbertson, Robert P Sanders, Arzu Onar-Thomas, David W Ellison, Amar Gajjar, Paul A Northcott
BACKGROUND: Young children with medulloblastoma have a poor overall survival compared with older children, due to use of radiation-sparing therapy in young children. Radiotherapy is omitted or reduced in these young patients to spare them from debilitating long-term side-effects. We aimed to estimate event-free survival and define the molecular characteristics associated with progression-free survival in young patients with medulloblastoma using a risk-stratified treatment strategy designed to defer, reduce, or delay radiation exposure...
May 16, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29778382/comparison-of-the-prevalence-of-chronic-endometritis-as-determined-by-means-of-different-diagnostic-methods-in-women-with-and-without-reproductive-failure
#17
Yingyu Liu, Xiaoyan Chen, Jin Huang, Chi-Chiu Wang, Mei-Yung Yu, Susan Laird, Tin-Chiu Li
OBJECTIVE: To compare the prevalence of chronic endometritis (CE) when different diagnostic methods are used. DESIGN: Prospective observational study. SETTING: University-affiliated hospital. PATIENT(S): Four groups of women were studied, including women with proven fertility (Fertile; n = 40), unexplained recurrent miscarriage (RM; n = 93), recurrent implantation failure (RIF; n = 39), and infertile subjects undergoing endometrial scratch in a natural cycle preceding frozen-thawed embryo transfer (Infertility; n = 48)...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29776774/association-of-disrupted-circadian-rhythmicity-with-mood-disorders-subjective-wellbeing-and-cognitive-function-a-cross-sectional-study-of-91-105-participants-from-the-uk-biobank
#18
Laura M Lyall, Cathy A Wyse, Nicholas Graham, Amy Ferguson, Donald M Lyall, Breda Cullen, Carlos A Celis Morales, Stephany M Biello, Daniel Mackay, Joey Ward, Rona J Strawbridge, Jason M R Gill, Mark E S Bailey, Jill P Pell, Daniel J Smith
BACKGROUND: Disruption of sleep and circadian rhythmicity is a core feature of mood disorders and might be associated with increased susceptibility to such disorders. Previous studies in this area have used subjective reports of activity and sleep patterns, but the availability of accelerometer-based data from UK Biobank participants permits the derivation and analysis of new, objectively ascertained circadian rhythmicity parameters. We examined associations between objectively assessed circadian rhythmicity and mental health and wellbeing phenotypes, including lifetime history of mood disorder...
May 15, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29776386/impact-of-vkorc1-cyp4f2-and-nqo1-gene-variants-on-warfarin-dose-requirement-in-han-chinese-patients-with-catheter-ablation-for-atrial-fibrillation
#19
Jiao Li, Wenlong Yang, Zhonghui Xie, Kun Yu, Yuhua Chen, Kaijun Cui
BACKGROUND: The anticoagulation of atrial fibrillation catheter ablation during the perioperative stage does matter and should be treated with discretion. We aimed to assess impact of three important genes participating in vitamin K cycle (i.e. VKORC1 rs9923231, CYP4F2 rs2108622 and NQO1 rs1800566) on the daily stable warfarin dose requirement in Sichuan Han Chinese patients with catheter ablation of atrial fibrillation. METHODS: A total of 222 atrial fibrillation patients taking stable warfarin therapy after catheter ablation operation were enrolled in this study...
May 18, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29774275/comparative-economic-study-of-the-use-of-corifollitropin-alfa-and-daily-rfsh-for-controlled-ovarian-stimulation-in-older-patients-cost-minimization-analysis-based-on-the-pursue-study
#20
Gorka Barrenetxea, Juan Antonio García-Velasco, Belén Aragón, Jordi Osset, Max Brosa, Noemí López-Martínez, Buenaventura Coroleu
This study presents an economic assessment of controlled ovarian stimulation in assisted reproductive technology procedures in Spain, comparing the use of corifollitropin alfa and various forms of recombinant follicle-stimulating hormone (rFSH) in women of advanced maternal age. A cost-minimization analysis (CMA) was performed to assess the cost per cycle of controlled controlled ovarian stimulation, including only direct costs associated with the stimulation phase. The CMA was based on the population characteristics, the protocol, and the results obtained from the PURSUE study, taking into account 9 days of controlled controlled ovarian stimulation and 300 IU rFSH/day...
April 2018: Reproductive Biomedicine & Society Online
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