Therapeutic potential of superoxide dismutase mimetics as therapeutic agents in critical care medicine

Plants of the genus Euphorbia are widely distributed across temperate, tropical and subtropical regions of South America, Asia and Africa with established Ayurvedic, Chinese and Malay ethnomedical records. The present review reports the isolation, occurrence, phytochemistry, biological properties, therapeutic potential and structure–activity relationship of Euphorbia flavonoids for the period covering 2000–2020, while identifying potential areas for future studies aimed at development of new therapeutic agents from these plants. The findings suggest that the extracts and isolated flavonoids possess anticancer, antiproliferative, antimalarial, antibacterial, anti-venom, anti-inflammatory, anti-hepatitis and antioxidant properties and have different mechanisms of action against cancer cells. Of the investigated species, over 80 different types of flavonoids have been isolated to date. Most of the isolated flavonoids were flavonols and comprised simple O-substitution patterns, C-methylation and prenylation. Others had a glycoside, glycosidic linkages and a carbohydrate attached at either C-3 or C-7, and were designated as d-glucose, l-rhamnose or glucorhamnose. The structure–activity relationship studies showed that methylation of the hydroxyl groups on C-3 or C-7 reduces the activities while glycosylation loses the activity and that the parent skeletal structure is essential in retaining the activity. These constituents can therefore offer potential alternative scaffolds towards development of new Euphorbia-based therapeutic agents.

Download Full-text

Evaluation of Clinical Outcomes after Introduction of a Dedicated Infectious Diseases- Critical Care Medicine Service in Critical Care Units

Open Forum Infectious Diseases ◽

10.1093/ofid/ofab182 ◽

2021 ◽

Author(s):

Polina Trachuk ◽

Vagish Hemmige ◽

Ruth Eisenberg ◽

Kelsie Cowman ◽

Victor Chen ◽

...

Keyword(s):

Critical Care ◽

Infectious Diseases ◽

Clinical Outcomes ◽

Broad Spectrum ◽

Critical Care Medicine ◽

Care Hospital ◽

Intervention Period ◽

Broad Spectrum Antibiotics ◽

Antibiotic Utilization ◽

The Impact

Abstract Objective Infection is a leading cause of admission to intensive care units (ICU), with critically ill patients often receiving empiric broad-spectrum antibiotics. Nevertheless, a dedicated infectious diseases (ID) consultation and stewardship team is not routinely established. An ID-Critical Care Medicine (ID-CCM) pilot program was designed at a 400-bed tertiary care hospital in which an ID attending was assigned to participate in daily rounds with the ICU team, as well as provide ID consultation on select patients. We sought to evaluate the impact of this dedicated ID program on antibiotic utilization and clinical outcomes in patients admitted to the ICU. Method In this single site retrospective study, we analyzed antibiotic utilization and clinical outcomes in patients admitted to an ICU during post-intervention period from January 1, 2017 to December 31, 2017 and compared it to antibiotic utilization in the same ICUs during the pre-intervention period from January 1, 2015 to December 31, 2015. Results Our data showed a statistically significant reduction in usage of most frequently prescribed antibiotics including vancomycin, piperacillin-tazobactam and cefepime during the intervention period. When compared to pre-intervention period there was no difference in-hospital mortality, hospital length of stay and re-admission. Conclusion With this multidisciplinary intervention, we saw a decrease in the use of the most frequently prescribed broad-spectrum antibiotics without a negative impact on clinical outcomes. Our study shows that the implementation of an ID-CCM service is a feasible way to promote antibiotic stewardship in the ICU and can be used as a strategy to reduce unnecessary patient exposure to broad-spectrum agents.

Download Full-text

Chalepin and Chalepensin: Occurrence, Biosynthesis and Therapeutic Potential

Molecules ◽

10.3390/molecules26061609 ◽

2021 ◽

Vol 26 (6) ◽

pp. 1609

Author(s):

Lutfun Nahar ◽

Shaymaa Al-Majmaie ◽

Afaf Al-Groshi ◽

Azhar Rasul ◽

Satyajit D. Sarker

Keyword(s):

Medicinal Plant ◽

Critical Appraisal ◽

Therapeutic Potential ◽

Therapeutic Agents ◽

Review Article ◽

Natural Distribution ◽

Antiplatelet Aggregation ◽

Ruta Chalepensis ◽

The Family ◽

Novel Therapeutic

Dihydrofuranocoumarin, chalepin (1) and furanocoumarin, chalepensin (2) are 3-prenylated bioactive coumarins, first isolated from the well-known medicinal plant Ruta chalepensis L. (Fam: Rutaceae) but also distributed in various species of the genera Boenminghausenia, Clausena and Ruta. The distribution of these compounds appears to be restricted to the plants of the family Rutaceae. To date, there have been a considerable number of bioactivity studies performed on coumarins 1 and 2, which include their anticancer, antidiabetic, antifertility, antimicrobial, antiplatelet aggregation, antiprotozoal, antiviral and calcium antagonistic properties. This review article presents a critical appraisal of publications on bioactivity of these 3-prenylated coumarins in the light of their feasibility as novel therapeutic agents and investigate their natural distribution in the plant kingdom, as well as a plausible biosynthetic route.

Download Full-text

A critical care medicine curriculum for MFM fellows

American Journal of Obstetrics and Gynecology ◽

10.1016/j.ajog.2004.10.440 ◽

2004 ◽

Vol 191 (6) ◽

pp. S152

Author(s):

Lauren Plante

Keyword(s):

Critical Care ◽

Critical Care Medicine

Download Full-text

Systematic review and bibliometric analysis of African anesthesia and critical care medicine research part II: a scientometric analysis of the 116 most cited articles

BMC Anesthesiology ◽

10.1186/s12871-021-01246-4 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Ulrick Sidney Kanmounye ◽

Joel Noutakdie Tochie ◽

Aimé Mbonda ◽

Cynthia Kévine Wafo ◽

Leonid Daya ◽

...

Keyword(s):

Critical Care ◽

South African ◽

Web Of Science ◽

Descriptive Analysis ◽

World Journal ◽

Critical Care Medicine ◽

Scientometric Analysis ◽

Medicine Research ◽

Qualitative Descriptive ◽

The Impact

Abstract Background Scientometrics is used to assess the impact of research in several health fields, including Anesthesia and Critical Care Medicine. The purpose of this study was to identify contributors to highly-cited African Anesthesia and Critical Care Medicine research. Methods The authors searched Web of Science from inception to May 4, 2020, for articles on and about Anesthesia and Critical Care Medicine in Africa with ≥2 citations. Quantitative (H-index) and qualitative (descriptive analysis of yearly publications and interpretation of document, co-authorship, author country, and keyword) bibliometric analyses were done. Results The search strategy returned 116 articles with a median of 5 (IQR: 3–12) citations on Web of Science. Articles were published in Anesthesia and Analgesia (18, 15.5%), World Journal of Surgery (13, 11.2%), and South African Medical Journal (8, 6.9%). Most (74, 63.8%) articles were published on or after 2013. Seven authors had more than 1 article in the top 116 articles: Epiu I (3, 2.6%), Elobu AE (2, 1.7%), Fenton PM (2, 1.7%), Kibwana S (2, 1.7%), Rukewe A (2, 1.7%), Sama HD (2, 1.7%), and Zoumenou E (2, 1.7%). The bibliometric coupling analysis of documents highlighted 10 clusters, with the most significant nodes being Biccard BM, 2018; Baker T, 2013; Llewellyn RL, 2009; Nigussie S, 2014; and Aziato L, 2015. Dubowitz G (5) and Ozgediz D (4) had the highest H-indices among the authors referenced by the most-cited African Anesthesia and Critical Care Medicine articles. The U.S.A., England, and Uganda had the strongest collaboration links among the articles, and most articles focused on perioperative care. Conclusion This study highlighted trends in top-cited African articles and African and non-African academic institutions’ contributions to these articles.

Download Full-text