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排序方式: 共有3474条查询结果,搜索用时 15 毫秒
71.
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Janelle C. Waite Santosh Vardhana Patrick J. Shaw Jung‐Eun Jang Christie‐Ann McCarl Thomas O. Cameron Stefan Feske Michael L. Dustin 《European journal of immunology》2013,43(12):3343-3354
Entry of lymphocytes into secondary lymphoid organs (SLOs) involves intravascular arrest and intracellular calcium ion ([Ca2+]i) elevation. TCR activation triggers increased [Ca2+]i and can arrest T‐cell motility in vitro. However, the requirement for [Ca2+]i elevation in arresting T cells in vivo has not been tested. Here, we have manipulated the Ca2+ release‐activated Ca2+ (CRAC) channel pathway required for [Ca2+]i elevation in T cells through genetic deletion of stromal interaction molecule (STIM) 1 or by expression of a dominant‐negative ORAI1 channel subunit (ORAI1‐DN). Interestingly, the absence of CRAC did not interfere with homing of naïve CD4+ T cells to SLOs and only moderately reduced crawling speeds in vivo. T cells expressing ORAI1‐DN lacked TCR activation induced [Ca2+]i elevation, yet arrested motility similar to control T cells in vitro. In contrast, antigen‐specific ORAI1‐DN T cells had a twofold delayed onset of arrest following injection of OVA peptide in vivo. CRAC channel function is not required for homing to SLOs, but enhances spatiotemporal coordination of TCR signaling and motility arrest. 相似文献
73.
Geoffrey M. Reed Michael C. Roberts Jared Keeley Catherine Hooppell Chihiro Matsumoto Pratap Sharan Rebeca Robles Hudson Carvalho Chunyan Wu Oye Gureje Itzear Leal‐Leturia Elizabeth H. Flanagan João Mendonça Correia Toshimasa Maruta José Luís Ayuso‐Mateos Jair de Jesus Mari Zeping Xiao Spencer C. Evans Shekhar Saxena María Elena Medina‐Mora 《Journal of clinical psychology》2013,69(12):1191-1212
74.
ABSTRACTThis study investigated the sublexical route in writing Chinese characters. Using a writing-to-dictation task, we compared neurotypical participants’ performance on writing a set of 40 characters with homophones sharing different phonetic radicals and another set of 40 characters with homophones sharing the same phonetic radicals. The first set of stimuli was regarded as both syllable-to-character and syllable-to-radical inconsistent, while the second set of stimuli was considered syllable-to-radical consistent but syllable-to-character inconsistent. The results of the error analysis showed that the control participants demonstrated a greater tendency to make errors with preserved phonetic radicals in the second set of stimuli. Furthermore, we conducted the same task with a Chinese brain-injured patient, WCY, who had mild dyslexia and severe dysgraphia associated with mild impairment to the lexical semantic route as shown by the patient’s character writing. The results showed that WCY demonstrated similar error patterns as those of the control participants and a shorter writing time in the second set of stimuli. Altogether, the observations were taken as evidence that supported our claim that a syllable-to-phonetic radical route governs the sublexical route in Chinese character writing. 相似文献
75.
Lucy Chesson Sarah Whitehead Kirsten Flanagan Kevin Deighton Jamie Matu Susan H. Backhouse Ben Jones 《Journal of Science and Medicine in Sport》2021,24(5):435-440
ObjectivesFull-contact football-code team sports offer a unique environment for illness risk. During training and match-play, players are exposed to high-intensity collisions which may result in skin-on-skin abrasions and transfer of bodily fluids. Understanding the incidence of all illnesses and infections and what impact they cause to time-loss from training and competition is important to improve athlete care within these sports. This review aimed to systematically report, quantify and compare the type, incidence, prevalence and count of illnesses across full-contact football-code team sports.Design/methodsA systematic search of Cochrane Library, MEDLINE, SPORTDiscus, PsycINFO and CINAHL electronic databases was performed from inception to October 2019; keywords relating to illness, athletes and epidemiology were used. Studies were excluded if they did not quantify illness or infection, involve elite athletes, investigate full-contact football-code sports or were review articles.ResultsTwenty-eight studies met the eligibility criteria. Five different football-codes were reported: American football (n = 10), Australian rules football (n = 3), rugby league (n = 2), rugby sevens (n = 3) and rugby union (n = 9). One multi-sport study included both American football and rugby union. Full-contact football-code athletes are most commonly affected by respiratory system illnesses. There is a distinct lack of consensus of illness monitoring methodology.ConclusionsFull-contact football-code team sport athletes are most commonly affected by respiratory system illnesses. Due to various monitoring methodologies, illness incidence could only be compared between studies that used matching incidence exposure measures. High-quality illness surveillance data collection is an essential component to undertake effective and targeted illness prevention in athletes. 相似文献
76.
Andrew D. Choi Dustin M. Thomas James Lee Suhny Abbara Ricardo C. Cury Jonathon A. Leipsic Christopher Maroules Prashant Nagpal Michael L. Steigner Dee Dee Wang Michelle C. Williams Irfan Zeb Todd C. Villines Ron Blankstein 《Journal of Cardiovascular Computed Tomography》2021,15(1):2-15
Cardiovascular computed tomography (CCT) is a well-validated non-invasive imaging tool with an ever-expanding array of applications beyond the assessment of coronary artery disease. These include the evaluation of structural heart diseases, congenital heart diseases, peri-procedural electrophysiology applications, and the functional evaluation of ischemia. This breadth requires a robust and diverse training curriculum to ensure graduates of CCT training programs meet minimum competency standards for independent CCT interpretation. This statement from the Society of Cardiovascular Computed Tomography aims to supplement existing societal training guidelines by providing a curriculum and competency framework to inform the development of a comprehensive, integrated training experience for cardiology and radiology trainees in CCT. 相似文献
77.
Feld Katharina Feld Dustin Karger Bernd Helmus Janine Schwimmer-Okike Nneka Pfeiffer Heidi Banaschak Sibylle Wittschieber Daniel 《International journal of legal medicine》2021,135(1):235-244
International Journal of Legal Medicine - The shaken baby syndrome (SBS) is a common variant of abusive head trauma (AHT) in infants and toddlers. Data on the legal outcome of such cases are still... 相似文献
78.
Kevin Colclough Christine Bellanne‐Chantelot Cecile Saint‐Martin Sarah E. Flanagan Sian Ellard 《Human mutation》2013,34(5):669-685
Maturity‐onset diabetes of the young (MODY) is a monogenic disorder characterized by autosomal dominant inheritance of young‐onset (typically <25 years), noninsulin‐dependent diabetes due to defective insulin secretion. MODY is both clinically and genetically heterogeneous with mutations in at least 10 genes. Mutations in the HNF1A gene encoding hepatocyte nuclear factor‐1 alpha are the most common cause of MODY in most adult populations studied. The number of different pathogenic HNF1A mutations totals 414 in 1,247 families. Mutations in the HNF4A gene encoding hepatocyte nuclear factor‐4 alpha are a rarer cause of MODY with 103 different mutations reported in 173 families to date. Sensitivity to treatment with sulfonylurea tablets is a feature of both HNF1A and HNF4A mutations. The HNF4A MODY phenotype has been expanded by the reports of macrosomia in ~50% of babies, and more rarely, neonatal hyperinsulinemic hypoglycemia. The identification of an HNF1A or HNF4A gene mutation has important implications for clinical management in diabetes and pregnancy, but MODY is significantly underdiagnosed. Current research is focused on identifying biomarkers and developing probability models to identify those patients most likely to have MODY, until next generation sequencing technology enables cost‐effective gene analysis for all patients with young onset diabetes. 相似文献
79.
Alan Carr Edel Flanagan Barbara Dooley Mark Fitzpatrick Roisín Flanagan-Howard Mark Shevlin 《Attachment & human development》2013,15(2):183-201
Two hundred and forty seven survivors of institutional abuse in Ireland were classified with the Experiences in Close Relationships Inventory as having fearful (44%), preoccupied (13%), dismissive (27%), or secure (17%) adult attachment styles. The group with the secure adult attachment style had the most positive profile, while the most negative profile occurred for the fearful group in terms of DSM IV diagnoses and scores on the Trauma Symptom Inventory, the Global Assessment of Functioning Scale, the World Health Organization Quality of Life 100 scale, and the Kansas Marital Satisfaction Scale. The profile of the preoccupied group was more similar to that of the fearful group. The profile of the dismissive group was more similar to that of the secure group. 相似文献
80.