Camptothecin accumulation in Camptotheca acuminata seedlings in response to acetylsalicylic acid treatment

2004 ◽  
Vol 84 (3) ◽  
pp. 885-889 ◽  
Author(s):  
Zhanhai Li ◽  
Zhijun Liu

Camptothecin is an anti-cancer alkaloid. Acetylsalicylic acid (ASA) treatment was evaluated as a potential tool for increasing camptothecin accumulation (concentration and yield) in Camptotheca acuminata. Increasing ASA concentration increased leaf camptothecin concentration, but stunted growth and decreased total leaf camptothecin yield. Thus, ASA treatment does not enhance camptothecin yield. Key words: Hydroponic culture, plant secondary metabolite

2021 ◽  
Vol 23 (3) ◽  
Author(s):  
V. V. Buheruk ◽  
O. B. Voloshyna ◽  
L. I. Kovalchuk ◽  
I. V. Balashova ◽  
O. V. Naidionova

The aim of this review is to analyze and summarize the existing evidence regarding the possibilities of using acetylsalicylic acid (ASA) and other non-steroidal anti-inflammatory drugs (NSAIDs) to reduce cancer risk. Conclusions. Chronic inflammation facilitates the onset and progress of tumour growth. Anti-cancer properties of acetylsalicylic acid and other non-steroidal anti-inflammatory drugs are mediated via cyclooxygenase COX-dependent mechanisms, as well as other tumorigenic pathways. Current systematic review addresses potential role of ASA and other NSAIDs in reduction of cancer risk for the following localizations: head and neck, lungs, gastrointestinal tract, breast, ovaries, prostate, and skin. The role of ASA in primary prevention of colorectal cancer in specific populations is presented in 2016 U. S. Preventive Services Task Force guidelines. Studies indicate heterogeneous protective potential of ASA against different cancer types, depending on studied population, duration of intake and dose. Influence of non-aspirin NSAIDs on cancer morbidity and mortality is more controversial.


2008 ◽  
Vol 136 (Suppl. 3) ◽  
pp. 240-245 ◽  
Author(s):  
Dragica Vucelic ◽  
Predrag Sabljak ◽  
Predrag Pesko ◽  
Dejan Stojakov ◽  
Keramatollah Ebrahimi ◽  
...  

INTRODUCTION. Gastrointestinal bleeding is the most important complication associated with acetylsalicylic acid therapy. Patients with preexisting haemostatic disorders are at the higher risk and may experience life-threatening hemorrhagic syndrome. Platelet transfusions and desmopressin administration commonly successfully arrest bleeding. However, in clinical situations with profound bleeding and haemorrhagic shock, these therapeutic approaches may fail. CASE OUTLINE. We report a 24-year old female patient with previously undetected acquired platelet dysfunction, who underwent reconstructive surgical intervention. On the 20th postoperative day, acetylsalicylic acid was introduced due to reactive thrombocytosis (platelet count 1480x109/L) with daily dose of 100 mg tablets. On the 12th day of the acetylsalicylic acid treatment, massive gastrointestinal bleeding with haemorrhagic shock suddenly occurred. Attempts to control massive haemorrhage by resuscitation, blood products and haemostatics (desmopressin, tranexamic acid) failed. Two bolus doses of recombinant activated factor VII (rFVIIa) (100 ?g/kg and 60 ?g/kg respectively) in 90 minutes interval were given. Bleeding was successfully controlled with no requirements for further haemoproducts and haemostatic remedies treatment. CONCLUSION. This case demonstrates that the use of rFVIIa may be a specific treatment option in patients suffering from severe gastrointestinal bleeding associated with acetylsalicylic acid treatment.


Author(s):  
Asuzu Chinwe U.

Background: The article is a review of three bitter vegetables consumed in South-eastern Nigeria (Gongronema latifolium, Vernonia amygdalina and Vitex doniana). These vegetables are not very palatable to taste but are highly famed because of the myriad of illnesses that they are reputed to cure and manage. The different aspects of these vegetables reviewed are their ethnobotany, zoo pharmacology, bioactivity, phytochemistry and toxicity. Materials and method: The literatures consulted were searched using electronic search engines (Google, Google scholar and Pubmed). Substantial amount of literature was consulted but only those directly related to the main review were selected. Result: The review revealed that the three bitter vegetables possessed phytochemicals like saponins, flavonoids, alkaloids among others that justify the claims of curing and managing many of the illnesses that traditional folks attribute to them. From literature, antimicrobial, antinflammatory, antidiabetic, antioxidant and anti cancer activities were attributed to these three bitter herbs. Antinutritional substances like phytate and oxalate reported in these herbs were not regarded as harmful for human consumption because of the traditional method of processing the vegetables by squeeze washing in several changes of water. Conclusion: The three bitter herbs are regarded as beneficial for human consumption and the information should be disseminated to a large audience. Key words: V. amygdalina, V. doniana, G.


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