scholarly journals Over Fifty Years of Life, Death, and Cannibalism: A Historical Recollection of Apoptosis and Autophagy

2021 ◽  
Vol 22 (22) ◽  
pp. 12466
Author(s):  
Mahmoud Izadi ◽  
Tayyiba Akbar Ali ◽  
Ehsan Pourkarimi

Research in biomedical sciences has changed dramatically over the past fifty years. There is no doubt that the discovery of apoptosis and autophagy as two highly synchronized and regulated mechanisms in cellular homeostasis are among the most important discoveries in these decades. Along with the advancement in molecular biology, identifying the genetic players in apoptosis and autophagy has shed light on our understanding of their function in physiological and pathological conditions. In this review, we first describe the history of key discoveries in apoptosis with a molecular insight and continue with apoptosis pathways and their regulation. We touch upon the role of apoptosis in human health and its malfunction in several diseases. We discuss the path to the morphological and molecular discovery of autophagy. Moreover, we dive deep into the precise regulation of autophagy and recent findings from basic research to clinical applications of autophagy modulation in human health and illnesses and the available therapies for many diseases caused by impaired autophagy. We conclude with the exciting crosstalk between apoptosis and autophagy, from the early discoveries to recent findings.

2021 ◽  
Vol 6 (3-4) ◽  
pp. 265-287
Author(s):  
Feras Krimsti ◽  
John-Paul Ghobrial

Abstract This introduction to the special issue “The Past and its Possibilities in Nahḍa Scholarship” reflects on the role of the past in nineteenth- and early twentieth-century nahḍa discourse. It argues that historical reflection played a pivotal role in a number of scholarly disciplines besides the discipline of history, notably philosophy and logic, grammar and lexicography, linguistics, philology, and adab. Nahḍawīs reflected on continuities with the past, the genealogies of their present, and the role of history in determining their future. The introduction of print gave new impulses to the engagement with the historical heritage. We argue for a history of the nahḍa as a de-centred history of possibilities that recovers a wider circle of scholars and intellectuals and their multiple and overlapping local and global audiences. Such a history can also shed light on the many ways in which historical reflection, record-keeping practices, and confessional, sectarian, or communalist agendas are entwined.


2020 ◽  
Vol 15 (3) ◽  
Author(s):  
Olga Bajčev

Scientific interest in the painted pottery of the Starčevo culture in Serbia dates back to the very beginnings of research and the first works on the relative-chronological systematization of the Early and Middle Neolithic of the central Balkans. This paper presents the deconstruction of our established notion of painted ceramics as the ultimate parameter of relative-chronological dating, the most representative material reflection of the cultural identity of the people of Starčevo culture and the highest achievements of Starčevo culture. The paper discusses circumstances and archaeological practices through which this ingrained view and knowledge of painted pottery was formed. The research is based on the analysis of the biography of a painted vessel from the Starčevo-Grad site, having in mind that a detailed life history of an object can shed light on wider phenomena in the archaeological discipline. The aim of this paper is to remind that objects do not have a single essential meaning, but that their meaning shifts and builds through changes in the historical and social context, as well as through changes of actors gathered around certain practices in which the objects are used. The biography of the painted vessel is therefore viewed as a series of assemblages of relations in two planes, through which its identity and layers of meaning were built. The first plane is the Neolithic, in which the focus is on the practices of painting and use, and the second is her life in the role of an archaeological artifact, during which she moves from the sphere of scientific research and musealization to the sphere of negotiating contemporary cultural identities. By applying a new analytical approach, we discovered that this vessel was not very skilfully and carefully painted, and that as such it does not testify to the highest achievements of Starčevo culture, but to a social practice, learning, apprentices and mastering the skill of pottery painting. Therefore, I believe that by reducing painted pottery to relative-chronological parameters and luxury objects, we lose sight of the possibilities through which we can build much more diverse interpretations of the past.


Somatechnics ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 288-303
Author(s):  
Michael Connors Jackman

This article investigates the ways in which the work of The Body Politic (TBP), the first major lesbian and gay newspaper in Canada, comes to be commemorated in queer publics and how it figures in the memories of those who were involved in producing the paper. In revisiting a critical point in the history of TBP from 1985 when controversy erupted over race and racism within the editorial collective, this discussion considers the role of memory in the reproduction of whiteness and in the rupture of standard narratives about the past. As the controversy continues to haunt contemporary queer activism in Canada, the productive work of memory must be considered an essential aspect of how, when and for what reasons the work of TBP comes to be commemorated. By revisiting the events of 1985 and by sifting through interviews with individuals who contributed to the work of TBP, this article complicates the narrative of TBP as a bluntly racist endeavour whilst questioning the white privilege and racially-charged demands that undergird its commemoration. The work of producing and preserving queer history is a vital means of challenging the intentional and strategic erasure of queer existence, but those who engage in such efforts must remain attentive to the unequal terrain of social relations within which remembering forms its objects.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Muna Abed Rabbo ◽  
Yara Khodour ◽  
Laurie S. Kaguni ◽  
Johnny Stiban

AbstractJohann Ludwig Wilhelm Thudicum described sphingolipids (SLs) in the late nineteenth century, but it was only in the past fifty years that SL research surged in importance and applicability. Currently, sphingolipids and their metabolism are hotly debated topics in various biochemical fields. Similar to other macromolecular reactions, SL metabolism has important implications in health and disease in most cells. A plethora of SL-related genetic ailments has been described. Defects in SL catabolism can cause the accumulation of SLs, leading to many types of lysosomal storage diseases (LSDs) collectively called sphingolipidoses. These diseases mainly impact the neuronal and immune systems, but other systems can be affected as well. This review aims to present a comprehensive, up-to-date picture of the rapidly growing field of sphingolipid LSDs, their etiology, pathology, and potential therapeutic strategies. We first describe LSDs biochemically and briefly discuss their catabolism, followed by general aspects of the major diseases such as Gaucher, Krabbe, Fabry, and Farber among others. We conclude with an overview of the available and potential future therapies for many of the diseases. We strive to present the most important and recent findings from basic research and clinical applications, and to provide a valuable source for understanding these disorders.


2018 ◽  
Vol 43 (3) ◽  
pp. 274-313
Author(s):  
Enver Hasani

Kosovo’s Constitutional Court has played a role of paramount importance in the country’s recent history. The author uses a comparative analysis to discuss the role of the Court in light of the work and history of other European constitutional courts. This approach sheds light on the Court’s current role by analyzing Kosovo’s constitutional history, which shows that there has been a radical break with the past. This approach reveals the fact that Kosovo’s current Constitution does not reflect the material culture of the society of Kosovo. This radical break with the past is a result of the country’s tragic history, in which case the fight for constitutionalism means a fight for human dignity. In this battle for constitutionalism, the Court has been given very broad jurisdiction and a role to play in paving the way for Kosovo to move toward Euro-Atlantic integration in all spheres of life. Before reaching this conclusion, the author discusses the specificities of Kosovo’s transition, comparing it with other former communist countries. Among the specific features of constitutionalism in Kosovo are the role and position of the international community in the process of constitution-making and the overall design of constitutional justice in Kosovo. Throughout the article, a conclusion emerges that puts Kosovo’s Constitutional Court at the forefront of the fight for the rule of law and constitutionalism of liberal Western provenance.


2016 ◽  
Vol 6 (1) ◽  
pp. 37
Author(s):  
Jamal Subhi Ismail Nafi’

<p>This article is an attempt to explore the inclusion and the use of superstitious elements in Mark Twain’s novel <em>The Adventures of Huckleberry Finn</em> (1884) and Shakespeare’s play <em>Macbeth</em> (1611). Superstition involves a deep belief in the magic and the occult, to almost to an extent of obsession, which is contrary to realism. Through the analytical and psychological approaches, this paper tries to shed light on Twain’s and Shakespeare’s use of supernaturalism in their respective stories, and the extent the main characters are influenced by it. A glance at both stories reveals that characters are highly affected by superstitions, more than they are influenced by their religious beliefs, or other social factors and values. The researcher also tries to explore the role played by superstition, represented by fate and the supernatural in determining the course of actions characters undertake in both dramas. The paper concluded that the people who lived in the past were superstitious to an extent of letting magic, omens; signs, etc. affect and determine their lives; actions and future decisions. They determine their destiny and make it very difficult for them to avoid it, alter it or think rationally and independently. And that, man’s actions are not isolated, but closely connected to the various forces operating in the universe.</p>


2011 ◽  
pp. 15-25 ◽  
Author(s):  
M. PYTLIAK ◽  
V. VARGOVÁ ◽  
V. MECHÍROVÁ ◽  
M. FELŠÖCI

Serotonin (5-hydroxytryptamine) is an ubiquitary monoamine acting as one of the neurotransmitters at synapses of nerve cells. Serotonin acts through several receptor types and subtypes. The profusion of 5-HT receptors should eventually allow a better understanding of the different and complex processes in which serotonin is involved. Its role is expected in the etiology of several diseases, including depression, schizophrenia, anxiety and panic disorders, migraine, hypertension, pulmonary hypertension, eating disorders, vomiting and irritable bowel syndromes. In the past 20 years, seven distinct families of 5-HT receptors have been identified and various subpopulations have been described for several of them. Increasing number of 5-HT receptors has made it difficult to unravel the role of 5-HT receptor subpopulations due to the lack of suitable selective agents. The present review describes the different populations and nomenclature of recently discovered 5-HT receptors and their pharmacological relevance.


Religions ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 77
Author(s):  
Ahmed Abou El Zalaf

Existing scholarship has largely focused on the role of Sayyid Qutb’s ideas when analyzing the Muslim Brotherhood’s violent history. Perceiving Qutb’s ideas as paving the way for radical interpretations of jihad, many studies linked the Brotherhood’s violent history with this key ideologue. Yet, in so doing, many studies overlooked the importance of the Special Apparatus in shaping this violent history of the Brotherhood, long before Qutb joined the organization. Through an in-depth study of memoires and accounts penned by Brotherhood members and leaders, and a systematic study of British and American intelligence sources, I attempt to shed light on this understudied formation of the Brotherhood, the Special Apparatus. This paper looks at the development of anti-colonial militancy in Egypt, particularly the part played by the Brotherhood until 1954. It contends that political violence, in the context of British colonization, antedated the Brotherhood’s foundation, and was in some instances considered as a legitimate and even distinguished duty among anti-colonial factions. The application of violence was on no account a part of the Brotherhood’s core strategy, but the organization, nevertheless, established an armed and secret wing tasked with the fulfillment of what a segment of its members perceived as the duty of anti-colonial jihad.


2013 ◽  
Vol 23 ◽  
pp. 451-453 ◽  
Author(s):  
COSTANTINO SIGISMONDI

The role of Venus and Mercury transits is crucial to know the past history of the solar diameter. Through the W parameter, the logarithmic derivative of the radius with respect to the luminosity, the past values of the solar luminosity can be recovered. The black drop phenomenon affects the evaluation of the instants of internal and external contacts between the planetary disk and the solar limb. With these observed instants compared with the ephemerides the value of the solar diameter is recovered. The black drop and seeing effects are overcome with two fitting circles, to Venus and to the Sun, drawn in the undistorted part of the image. The corrections of ephemerides due to the atmospheric refraction will also be taken into account. The forthcoming transit of Venus will allow an accuracy on the diameter of the Sun better than 0.01 arcsec, with good images of the ingress and of the egress taken each second. Chinese solar observatories are in the optimal conditions to obtain valuable data for the measurement of the solar diameter with the Venus transit of 5/6 June 2012 with an unprecedented accuracy, and with absolute calibration given by the ephemerides.


2018 ◽  
Vol 39 (04) ◽  
pp. 299-312 ◽  
Author(s):  
Evan Usler ◽  
Anna Bostian ◽  
Ranjini Mohan ◽  
Katelyn Gerwin ◽  
Barbara Brown ◽  
...  

AbstractOver the past 10 years, we (the Purdue Stuttering Project) have implemented longitudinal studies to examine factors related to persistence and recovery in early childhood stuttering. Stuttering develops essentially as an impairment in speech sensorimotor processes that is strongly influenced by dynamic interactions among motor, language, and emotional domains. Our work has assessed physiological, behavioral, and clinical features of stuttering within the motor, linguistic, and emotional domains. We describe the results of studies in which measures collected when the child was 4 to 5 years old are related to eventual stuttering status. We provide supplemental evidence of the role of known predictive factors (e.g., sex and family history of persistent stuttering). In addition, we present new evidence that early delays in basic speech motor processes (especially in boys), poor performance on a nonword repetition test, stuttering severity at the age of 4 to 5 years, and delayed or atypical functioning in central nervous system language processing networks are predictive of persistent stuttering.


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