scholarly journals Overcoming Biological Barriers With Block Copolymers-Based Self-Assembled Nanocarriers. Recent Advances in Delivery of Anticancer Therapeutics

2020 ◽  
Vol 11 ◽  
Author(s):  
Jazmin Torres ◽  
Namdev Dhas ◽  
Marcela Longhi ◽  
Mónica C. García
Keyword(s):  
Block Copolymers ◽  
Cancer Treatment ◽  
Common Life ◽  
Biological Barriers ◽  
Life Threatening Illness ◽  
Ability To Act ◽  
Anticancer Therapeutics ◽  
Life Threatening ◽  
Self Assembled ◽  
Treatment And Diagnosis

Cancer is one of the most common life-threatening illness and it is the world’s second largest cause of death. Chemotherapeutic anticancer drugs have many disadvantages, which led to the need to develop novel strategies to overcome these shortcomings. Moreover, tumors are heterogenous in nature and there are various biological barriers that assist in treatment reisistance. In this sense, nanotechnology has provided new strategies for delivery of anticancer therapeutics. Recently, delivery platforms for overcoming biological barriers raised by tumor cells and tumor-bearing hosts have been reported. Among them, amphiphilic block copolymers (ABC)-based self-assembled nanocarriers have attracted researchers worldwide owing to their unique properties. In this work, we addressed different biological barriers for effective cancer treatment along with several strategies to overcome them by using ABC‐based self-assembled nanostructures, with special emphasis in those that have the ability to act as responsive nanocarriers to internal or external environmental clues to trigger release of the payload. These nanocarriers have shown promising properties to revolutionize cancer treatment and diagnosis, but there are still challenges for their successful translation to clinical applications.

Review of Adapting to Life-Threatening Illness.

1987 ◽  
Vol 32 (10) ◽  
pp. 906-906
Author(s):  
No authorship indicated
Keyword(s):  
Life Threatening Illness ◽  
Life Threatening

Life-threatening Illness as Precursor to Posttraumatic Growth

2013 ◽  
Author(s):  
Lawrence G. Calhoun ◽  
◽  
Jay Azarow ◽  
Tzipi Weiss ◽  
Joel Millam
Keyword(s):  
Posttraumatic Growth ◽  
Life Threatening Illness ◽  
Life Threatening

Sophistry and Circumstance at the End of Life

2008 ◽  
Vol 5 (1) ◽  
pp. 81-88
Author(s):  
Philip Berry
Keyword(s):  
Liver Failure ◽  
Medical Personnel ◽  
Medical Decision ◽  
Loss Of Consciousness ◽  
Supportive Treatment ◽  
Medical Decisions ◽  
Life Threatening Illness ◽  
Two Factors ◽  
Life Threatening ◽  
Counselling Process

When life-threatening illness robs a patient of the ability to express their desires, medical personnel must work through the issues of management and prognosis with relatives. Management decisions are guided by medical judgement and the relatives’ account of the patient’s wishes, but difficulties occur when distance grows between these two factors. In these circumstances the counselling process may turn into a doctor-led justification of the medical decision. This article presents two strands of dialogue, in which a doctor, counselling for and against continuation of supportive treatment in two patients with liver failure, demonstrates selectivity and inconsistency in constructing an argument. The specific issues of loss of consciousness (with obscuration of personal identity), statistical ‘futility’ and removal of autonomy are explored and used to bolster diametrically opposed medical decisions. By examining the doctor’s ability to interpret these issues according to circumstance, the author demonstrates how it is possible to shade medical facts depending on the desired outcome.

Brain-eating Amoebae Infection: Challenges and Opportunities in Chemotherapy

2019 ◽  
Vol 19 (12) ◽  
pp. 980-987 ◽  
Author(s):  
Mohammad Ridwane Mungroo ◽  
Ayaz Anwar ◽  
Naveed Ahmed Khan ◽  
Ruqaiyyah Siddiqui
Keyword(s):  
Mortality Rate ◽  
Free Living ◽  
Outdoor Activities ◽  
The Past ◽  
Free Living Amoeba ◽  
Challenges And Opportunities ◽  
Life Threatening ◽  
The Central Nervous System ◽  
Living Nature ◽  
Treatment And Diagnosis

Pathogenic free-living amoeba are known to cause a devastating infection of the central nervous system and are often referred to as “brain-eating amoebae”. The mortality rate of more than 90% and free-living nature of these amoebae is a cause for concern. It is distressing that the mortality rate has remained the same over the past few decades, highlighting the lack of interest by the pharmaceutical industry. With the threat of global warming and increased outdoor activities of public, there is a need for renewed interest in identifying potential anti-amoebic compounds for successful prognosis. Here, we discuss the available chemotherapeutic options and opportunities for potential strategies in the treatment and diagnosis of these life-threatening infections.

scholarly journals More comprehensively measuring quality of life in life-threatening illness: the McGill Quality of Life Questionnaire – Expanded

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
S. Robin Cohen ◽  
Lara B. Russell ◽  
Anne Leis ◽  
Javad Shahidi ◽  
Pat Porterfield ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Second Order ◽  
Model Fit ◽  
Life Questionnaire ◽  
Quality Of Life Questionnaire ◽  
Healthcare Environment ◽  
Life Threatening Illness ◽  
Life Threatening ◽  
Order Factor

Abstract Background Domains other than those commonly measured (physical, psychological, social, and sometimes existential/spiritual) are important to the quality of life of people with life-threatening illness. The McGill Quality of Life Questionnaire (MQOL) – Revised measures the four common domains. The aim of this study was to create a psychometrically sound instrument, MQOL – Expanded, to comprehensively measure quality of life by adding to MQOL-Revised the domains of cognition, healthcare, environment, (feeling like a) burden, and possibly, finance. Methods Confirmatory factor analyses were conducted on three datasets to ascertain whether seven new items belonged with existing MQOL-Revised domains, whether good model fit was obtained with their addition as five separate domains to MQOL-Revised, and whether a second-order factor representing overall quality of life was present. People with life-threatening illnesses (mainly cancer) or aged > 80 were recruited from 15 healthcare sites in seven Canadian provinces. Settings included: palliative home care and inpatient units; acute care units; oncology outpatient clinics. Results Good model fit was obtained when adding each of the five domains separately to MQOL-Revised and for the nine correlated domains. Fit was acceptable for a second-order factor model. The financial domain was removed because of low importance. The resulting MQOL-Expanded is a 21-item instrument with eight domains (fit of eight correlated domains: Comparative Fit Index = .96; Root Mean Square Error of Approximation = .033). Conclusions MQOL-Expanded builds on MQOL-Revised to more comprehensively measure the quality of life of people with life-threatening illness. Our analyses provide validity evidence for the MQOL-Expanded domain and summary scores; the need for further validation research is discussed. Use of MQOL-Expanded will enable a more holistic understanding of the quality of life of people with a life-threatening illness and the impact of treatments and interventions upon it. It will allow for a better understanding of less commonly assessed but important life domains (cognition, healthcare, environment, feeling like a burden) and their relationship to the more commonly assessed domains (physical, psychological, social, existential/spiritual).

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