scholarly journals MicroRNAs as Potential Indicators of the Development and Progression of Uterine Leiomyoma

Author(s):  
Myungshin Kim ◽  
Mi Yeon Kwon ◽  
HeeJeong Lee ◽  
Min Jeong Kim

Abstract Recent studies demonstrated a significant role of several microRNAs (miRs) in the development of leiomyoma. Here, we investigated miR expression profiles using microarray and found a significantly higher expression of miRs in leiomyoma than in adjacent myometrium. We also confirmed the upregulation of five selected miRs including miR-181a-5p, 127-3p, 28-3p, 30b-5p and let-7c-5p in cellular proliferation, extracellular matrix turnover, and angiogenesis by RT-qPCR. Interestingly, the miRs showed a higher expression in cases of large leiomyoma or in patients with a history of transfusion due to anemia. We then analyzed the expression of the miR target molecules including TGFBR2 and IGF2BP1 via immunohistochemistry. TGFBR2 and IGF2BP1 were positively stained in 81% and 62.5% of leiomyoma tissues but not in adjacent myometrium. Both were more frequently positive in patients with ≥ 6 cm leiomyoma and mass effect. The mean expression levels of miR-181a-5p, 127-3p, 28-3p, 30b-3p and let-7c-5p were higher in cases with TGFBR2 and IGF2BP1 positive leiomyoma. These results provide insight into the role of miRs in the development and progression of leiomyoma and underscore the need to validate their utility as diagnostic or therapeutic targets.

PEDIATRICS ◽  
1996 ◽  
Vol 98 (6) ◽  
pp. 1119-1121
Author(s):  
Joseph Maytal ◽  
Gerald Novak ◽  
Catherine Ascher ◽  
Robert Bienkowski

Objectives. To determine the association between subtherapeutic antiepileptic drug (AED) levels or AED withdrawal and status epilepticus (SE) in children with epilepsy. Methods. We studied the AED levels at the time of SE in 51 consecutive children with epilepsy. Information about prior AED levels, possible etiology of seizures, and acute precipitants was extracted from medical records. Results. The mean age at the time of SE was 5.7 years (range, 3 months through 18 years). Forty-three patients had history of remote insult, five had history of progressive encephalopathy, and three patients were classified as idiopathic. At the time of SE all AED levels were therapeutic in 34 (66%) patients and at least one level was therapeutic in 42 (82%) patients. All levels were subtherapeutic in 9 (18%) patients. Four patients had their AED reduced or discontinued less than 1 week before SE. Twelve patients with therapeutic AED levels on their most recent clinic visit had at least one subtherapeutic level at the time of SE. Eight (16%) patients were febrile and one was hyponatremic. Of the 51 patients, 31 (61%) had no obvious explanation for the development of SE, as all known AEDs were therapeutic and there were no known acute insults. Conclusions. Neurologically abnormal children with preexisting epilepsy are at high risk for development of SE despite having therapeutic AED levels at that time. Acute precipitants of SE, such as fever or AED withdrawal, may play a role in inducing SE only in a minority of patients.


2020 ◽  
pp. 112067212094433 ◽  
Author(s):  
Momen Mahmoud Hamdi ◽  
Islam Mahmoud Hamdi

Purpose: To compare between mitomycin C alone, porcine extracellular matrix alone, and combined low dose mitomycin C with porcine extracellular matrix in term of efficacy and safety in phaco-trabeculectomy surgery. Study design: Prospective comparative. Methods: Sixty eyes of 60 patients complaining of primary open angle glaucoma and cataract, undergoing phaco-trabeculectomy, were distributed into three groups: group I: surgery was augmented with mitomycin C, group II with porcine extracellular matrix, and group III with porcine extracellular matrix combined with low dose mitomycin C. Intraocular pressure was evaluated, postoperatively, at day 1, week 1, and 1, 3, 6, 9, and 12 months. Bleb vascularity, pre- and post-operative intraocular pressure lowering medications, success of IOP control and complications were also evaluated. Results: After 12 months, the mean preoperative intraocular pressure (mm Hg) improved from 30.85 ± 4.7, 33.8 ± 4.2, and 31.05 ± 5.4 mm Hg, in groups I, II, and III respectively, to 13.8 ± 4.7 (55.2%), 15.2 ± 4.8 (55%), and 13 ± 4.9 (58.1%) ( p > 0.05). Success of IOP control, postoperative IOP lowering medications and complications were comparable ( p > 0.05). Bleb vascularity was significantly different ( p < 0.05). Conclusion: Mitomycin C, porcine extracellular matrix and their combination are equally effective in phacotrabeculectomy.


Author(s):  
Charles Lowney

In this paper I address some of John Dewey’s more generally applicable criticisms of the philosophic "tradition," and show how his criticisms stem from his naturalistic approach to philosophy. This topic is important because Dewey gives great insight into discussions that are relevant today regarding the role of philosophy. In 1935 he anticipated many of the criticisms of the "later" Wittgenstein regarding the establishment of post facto standards as a cause, the separation of language from behavior and the privatization of mind—yet Dewey still finds use for metaphysics or "thinking at large." I believe the essence of Dewey’s criticisms are found in a few key distinctions. Therefore, I cover the history of philosophy with blanket criticisms of the blanket categories of "classical" and of "modern" thought. For Dewey, the fundamental error characteristic of both Greek and Modern thinking is the artificial bifurcation of our thoughts, feelings and actions from the natural world. As I see it, the heart of this metaphysical mistake is captured by the distinctions he draws between the "instrumental" and "consummatory," and between the "precarious" and "stable."


2017 ◽  
Vol 08 (01) ◽  
pp. 084-088 ◽  
Author(s):  
Thomas Gregor Issac ◽  
Sadanandavalli Retnaswami Chandra ◽  
Neelesh Gupta ◽  
Malligurki Raghurama Rukmani ◽  
S. Deepika ◽  
...  

ABSTRACT Introduction: In frontotemporal dementia (FTD) and Alzheimer’s disease (AD), central autonomic structures get affected early. An insight into autonomic functions in these patients is likely to be of diagnostic importance and thus help in prognosticating and also probably explain unexplained sudden death in some of these patients. Objectives: The objective of this study is to identify autonomic dysfunction prevailing in patients. Then, if there is dysfunction, is the pattern same or different in these two conditions. And if different it will serve as an additional biomarker for specific diagnosis. Patients and Methods: There were 25 patients and 25 controls and six patients and three controls in AD and FTD groups, respectively. The participants who were recruited were assessed for heart rate variability and conventional cardiac autonomic function testing. The parameters were analyzed using LabChart version 7 software and compared with control population using appropriate statistical methods using SPSS version 22 software. Results: The mean overall total power was low in the FTD group (P < 0.001), and there was significant reduction in the standard deviation of normal-to-normal intervals and root mean square of successive differences (P < 0.001) with elevated sympathovagal balance in the FTD group (P = 0.04). Patients with AD also showed sympathetic dominance, but there was in addition parasympathetic suppression unlike in the FTD group. Conclusion: This study reveals autonomic dysfunction in patients with FTD and AD. Both conditions show sympathetic dominance, probably consecutive to the involvement of central autonomic regulatory structures as a shared domain. It remains to be confirmed if these findings are the cause or effect of neurodegeneration and might open up newer territories of research based on the causal role of neurotransmitters in these regions and thus lead to novel therapeutic options such as yoga. The presence of parasympathetic suppression in AD in addition helps differentiate these two conditions.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3471-3471
Author(s):  
Brian Balgobind ◽  
C. Michel Zwaan ◽  
Susan T.C.J.M. Arentsen-Peters ◽  
Dirk Reinhardt ◽  
Ursula Creutzig ◽  
...  

Abstract Abstract 3471 Poster Board III-359 One important cytogenetic subgroup of pediatric acute myeloid leukemia (AML) is characterized by translocations of chromosome 11q23, which accounts for 15 to 20% of all cases with an evaluable chromosome analysis. In most of these cases, the mixed lineage leukemia (MLL) gene is involved. More than 50 fusion translocation partners of the MLL gene have been identified and outcome differs by translocation partner, suggesting differences in the biological background. So far these biological differences have not been unravelled. Therefore, we investigated the gene expression profiles of MLL-rearranged subgroups in pediatric AML in order to discover and identify the role of differentially expressed genes. Affymetrix Human Genome U133 plus 2.0 microarrays were used to generate gene expression profiles of 257 pediatric AML cases, which included 21 pediatric AML cases with t(9;11)(p22;q23) and 33 with other MLL-rearrangements. With these profiles, we were able to identify a specific gene expression signature for t(9;11)(p22;q23) using an empirical Bayes linear regression model (Bioconductor package: Limma). This signature was mainly determined by overexpression of the BRE (brain and reproductive organ-expressed) gene. The mean average VSN normalized expression for BRE in the t(9;11)(p22;q23) subgroup was 3.7-fold higher compared with that in other MLL-rearranged cases (p<0.001). Validation by RQ-PCR confirmed this higher expression in t(9;11)(p22;q23) cases (p<0.001). In addition, we confirmed that overexpression of BRE was predominantly found in t(9;11)(p22;q23) in an independent gene expression profile cohort (Ross et al, Blood 2002). Remarkably, MLL-rearranged cases with a BRE expression higher than the mean expression showed a significant better 3 year disease free survival than MLL-rearranged cases with a lower expression (80±13% vs. 30±10%, p=0.02). Previously, overexpression of BRE has been described in hepatocellular carcinomas (HCC) (Chang et al., Oncogene 2008) and an anti-apoptotic effect was described. We transfected BRE in the monomac-1 cell line, which harbors a t(9;11)(p22;q23). We did not find a proliferative advantage for BRE overexpression using a BrDU-assay nor changes in drug sensitivity, indicating that the anti-apoptotic effect as described for HCC in vivo could not be confirmed in vitro in AML. In conclusion, overexpression of the BRE gene is predominantly involved in pediatric MLL-rearranged AML with t(9;11)(p22;q23). Moreover, high expression of BRE showed a favorable prognosis. We did not find any influence of BRE expression on cell proliferation or apoptosis in vitro. This indicates that further studies involving the role of the MLL-fusion protein on BRE transcription are necessary to unravel the leukemogenic role in pediatric AML. Disclosures No relevant conflicts of interest to declare.


Popular Music ◽  
2000 ◽  
Vol 19 (1) ◽  
pp. 31-49 ◽  
Author(s):  
Shane Homan

In a tiny inner city pubThe amps were getting stackedLeads were getting wound upIt was full of pissed Anzacs‘Got no more gigs for Tuesday nights’ said the barman to the star,‘We're putting pokies in the lounge and strippers in the bar’The star, he raised his fingers and said ‘fuck this fucking hole’But to his roadie said ‘it's the death of rock and roll’‘There ain't no single place left to play amplified guitarEvery place is servin' long blacks if they're not already tapas bars(TISM (This Is Serious Mum), ‘The Last Australian Guitar Hero’, 1998)Introduction: local music-makingA number of recent studies have focused upon the places and spaces of popular music performance. In particular, analyses of British live music contexts have examined the role of urban landscapes in facilitating production/consumption environments. Building upon Simon Frith's (1983) initial exploration of the synthesis of leisure/work ideologies and popular music, Ruth Finnegan's detailed examination of amateur music practices in Milton Keynes (1989) and Sara Cohen's account of the Liverpool scene (1991) reveal the benefits of engaging in detailed micro-studies of the local. Paul Chevigny's history of the governance of New York City jazz venues (1991) similarly provides a rich insight into performance contexts and the importance of hitherto unnoticed city ordinances in influencing the production of live music.


Tequio ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 79-84
Author(s):  
Osiris G Ildefonso García ◽  
Alma Aurora Ramírez Hernández ◽  
Jovito César Santos Álvarez ◽  
Juan M Velázquez Enriquez ◽  
Gabriel Carrasco Torres ◽  
...  

Liver fibrosis affects both the amount and the composition of the extracellular matrix. This process may occur during chronic liver disease characterized by hepato biliary disease or inflammation. There is now considerable evidence to support the role of the hepatic stellar cells (HSC) as the main matrix producing cells in fibrogenesis. The focus of this review is to provide insight into hepatic stellar cells in the fibrogenic process.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Hassan Alkhawam ◽  
Raef Madanieh ◽  
Mariya Fabisevich ◽  
Robert Sogomonian ◽  
Mohammed El-Hunjul ◽  
...  

Objective: To investigate the synergistic role of alcohol abuse/dependence and tobacco use in the early incidence of ACS. Methods: A retrospective chart analyses of 8076 patients diagnosed with ACS between 2000 to 2014, defined by ICD-9 codes for acute MI, alcohol abuse/dependence and tobacco use. Average age of ACS was calculated for the general population. Patients were then divided into 4 subgroups based on alcohol abuse/dependence and tobacco use status as follows: non-alcoholic non-smokers, non-alcoholic smokers, alcoholic non-smokers and alcoholic smokers. Results: The mean age of our 8076 ACS patients population was ~59.5 (95% CI 59.2-59.8). Patients with history of alcohol abuse/dependence appeared to develop ACS ~8.7 years younger than their non-alcoholic counterparts. When tobacco use is incorporated as a risk factor, those with both alcohol abuse/dependence and tobacco use seemed to develop ACS ~5 years earlier than those with history of either alone, and ~20 years earlier when compared to those with neither alcohol abuse/dependence nor tobacco use. (Table 1 summarizes mean age of ACS incidence in our study subgroups) Conclusion: Alcohol abuse/dependence appears to be a risk factor for earlier ACS. In our population, the average age of ACS incidence in alcoholic patients was significantly earlier than non-alcoholic patients. Furthermore, alcoholic patients who also used tobacco developed ACS at an even younger age when compared to those who had history of either alcohol abuse/dependence or tobacco use alone, suggesting a possible synergistic effect of these two risk factors in developing early ACS. Healthcare intervention in this population through screening, counseling and education regarding alcohol abuse/dependence and smoking cession is warranted to reduce early ACS morbidity and mortality.


SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A219-A220
Author(s):  
Quang Nguyen ◽  
Karim El-Kersh ◽  
Bakeerathan Gunaratnam ◽  
Egambaram Senthilvel

Abstract Introduction Adenoid recurrence in children after adenotonsillectomy can be an etiology for obstructive sleep apnea (OSA). The aim of this study was to assess the role of x-ray soft tissue neck (XR-STN) in evaluating adenoid recurrence from a sleep physician perspective and to assess the polysomnographic findings of pre and post revision adenoidectomy. Methods This was a single center retrospective study that included children &lt;18 years old with a history of adenotonsillectomy who underwent sleep study that confirmed the diagnosis of OSA and had XR- STN to evaluate for adenoidal tissue recurrence at the University of Louisville/Norton Pediatric Sleep Disorders clinic from July 2012 to September 2020. XR-STN level of adenoidal obliteration, baseline and post revision adenoidectomy PSG data were analyzed. Results A total of 160 subjects were included in the study with a mean age of 9.71±3.5 years, 59.4% were male, 54.4% were Caucasians, and the mean z-score was 1.77±1.15. XR-STN was normal in 39.4% of the subjects and it showed mild, moderate, and complete adenoidal obliteration in 20.6%, 32.5% and 7.5% of the subjects, respectively. Multiple regression analysis showed that the total AHI, the mean for the moderate and complete adenoidal obliteration are significantly higher than children with no obstruction (p-value=000). However, mild obliteration, Z score, age, gender, and race were not significantly associated with an increased total AHI. Pre- and post- adenoid revision PSGs were available in 20 subjects and they showed significant improvement in AHI (10.4±12.9 vs. 21.1±23.9, p=0.04), arousal index (15.4 ±10.6 vs. 21.1± 14.9, p=0.04), and nadir SaO2 (86.7%±8.1 vs. 76.58% ±18.44, p=0.04). Conclusion Soft tissue neck x-ray was useful in assessing adenoid recurrence in our study. Revision adenoidectomy resulted in an overall improvement in several PSGs parameters of OSA. Pediatric sleep physicians may consider XR-STN in the evaluation of children with OSA with a previous history of adenotonsillectomy. Support (if any) None


2018 ◽  
Vol 10 (1) ◽  
pp. 37-59
Author(s):  
Dirk HR Spennemann

Purpose This paper aims to describe the nature and significance of Sorel’s cooking appliance and to examine the promotion and marketing options used by Sorel to make it an appliance that was “widely used in private residences and by small eating houses.” It will highlight the role of the individual and will demonstrate that marketing and promotion strategies that are modulated by the social ambitions of the manufacturer. Design/methodology/approach The basis of this research is extensive quantitative and qualitative analysis of primary sources, mainly the advertisements placed by Sorel, supported by information in contemporary newspapers and journals. Findings Stanislas Sorel’s invention of an early form of thermostat allowed him to develop a stove that could cook a four-course family dinner largely unsupervised, an invention which was poised to revolutionise the lives of many households. Sorel was primarily an inventor striving for acceptance in the scientific world, with limited skills in the commercialisation of his inventions. His promotion and marketing efforts reflect both the social realities of the time and his own ambitions. Originality/value There has been very little research into the way small French inventors and manufacturers approached the marketing of their products. The paper provides a unique insight into the promotion techniques of a mid-nineteenth-century French inventor-cum-entrepreneur and highlights the role of the individual and how actions are constrained by ambition and opportunity. The paper provides an example of how research into how specific individuals can inform the larger history of marketing.


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