scholarly journals Current Disease-Targets for Oleocanthal as Promising Natural Therapeutic Agent

2018 ◽  
Vol 19 (10) ◽  
pp. 2899 ◽  
Author(s):  
Antonio Segura-Carretero ◽  
Jose Curiel
Keyword(s):  
Cardiovascular Diseases ◽  
Olive Oil ◽  
Phenolic Compound ◽  
Current Literature ◽  
Therapeutic Agent ◽  
Health Benefits ◽  
Phenolic Fraction ◽  
Cancer Inflammation ◽  
Underlying Mechanisms

The broad number of health benefits which can be obtained from the long-term consumption of olive oil are attributed mainly to its phenolic fraction. Many olive oil phenolics have been studied deeply since their discovery due to their bioactivity properties, such as Hydroxytyrosol. Similarly, in the last decade, the special attention of researchers has been addressed to Oleocanthal (OC). This olive oil phenolic compound has recently emerged as a potential therapeutic agent against a variety of diseases, including cancer, inflammation, and neurodegenerative and cardiovascular diseases. Recently, different underlying mechanisms of OC against these diseases have been explored. This review summarizes the current literature on OC to date, and focuses on its promising bioactivities against different disease-targets.

Enhanced Seasonal Exchange of CO2 by Northern Ecosystems Since 1960

Science ◽  
2013 ◽  
Vol 341 (6150) ◽  
pp. 1085-1089 ◽  
Author(s):  
H. D. Graven ◽  
R. F. Keeling ◽  
S. C. Piper ◽  
P. K. Patra ◽  
B. B. Stephens ◽  
...  
Keyword(s):  
Boreal Forests ◽  
Atmospheric Carbon Dioxide ◽  
Ecosystem Models ◽  
The North ◽  
Ecological Changes ◽  
Term Change ◽  
Major Shift ◽  
Underlying Mechanisms ◽  
Global Carbon

Seasonal variations of atmospheric carbon dioxide (CO2) in the Northern Hemisphere have increased since the 1950s, but sparse observations have prevented a clear assessment of the patterns of long-term change and the underlying mechanisms. We compare recent aircraft-based observations of CO2 above the North Pacific and Arctic Oceans to earlier data from 1958 to 1961 and find that the seasonal amplitude at altitudes of 3 to 6 km increased by 50% for 45° to 90°N but by less than 25% for 10° to 45°N. An increase of 30 to 60% in the seasonal exchange of CO2 by northern extratropical land ecosystems, focused on boreal forests, is implicated, substantially more than simulated by current land ecosystem models. The observations appear to signal large ecological changes in northern forests and a major shift in the global carbon cycle.

scholarly journals Blood–brain barrier disruption and ventricular enlargement are the earliest neuropathological changes in rats with repeated sub-concussive impacts over 2 weeks

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bailey Hiles-Murison ◽  
Andrew P. Lavender ◽  
Mark J. Hackett ◽  
Joshua J. Armstrong ◽  
Michael Nesbit ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Blood Brain Barrier ◽  
Hippocampal Formation ◽  
Brain Barrier ◽  
Lateral Ventricles ◽  
Blood Brain Barrier Disruption ◽  
Blood Brain ◽  
Brain Barrier Disruption ◽  
Underlying Mechanisms

AbstractRepeated sub-concussive impact (e.g. soccer ball heading), a significantly lighter form of mild traumatic brain injury, is increasingly suggested to cumulatively alter brain structure and compromise neurobehavioural function in the long-term. However, the underlying mechanisms whereby repeated long-term sub-concussion induces cerebral structural and neurobehavioural changes are currently unknown. Here, we utilised an established rat model to investigate the effects of repeated sub-concussion on size of lateral ventricles, cerebrovascular blood–brain barrier (BBB) integrity, neuroinflammation, oxidative stress, and biochemical distribution. Following repeated sub-concussion 3 days per week for 2 weeks, the rats showed significantly enlarged lateral ventricles compared with the rats receiving sham-only procedure. The sub-concussive rats also presented significant BBB dysfunction in the cerebral cortex and hippocampal formation, whilst neuromotor function assessed by beamwalk and rotarod tests were comparable to the sham rats. Immunofluorescent and spectroscopic microscopy analyses revealed no significant changes in neuroinflammation, oxidative stress, lipid distribution or protein aggregation, within the hippocampus and cortex. These data collectively indicate that repeated sub-concussion for 2 weeks induce significant ventriculomegaly and BBB disruption, preceding neuromotor deficits.

Racial and Ethnic Disparities in the Treatment of Chronic Pain

Pain Medicine ◽  
2020 ◽  
Author(s):  
Mary E Morales ◽  
R Jason Yong
Keyword(s):  
Chronic Pain ◽  
Racial Differences ◽  
Current Literature ◽  
Ethnic Disparities ◽  
The United States ◽  
Cross Sectional ◽  
Effective Interventions ◽  
Sociodemographic Profile

Abstract Objective To summarize the current literature on disparities in the treatment of chronic pain. Methods We focused on studies conducted in the United States and published from 2000 and onward. Studies of cross-sectional, longitudinal, and interventional designs were included. Results A review of the current literature revealed that an adverse association between non-White race and treatment of chronic pain is well supported. Studies have also shown that racial differences exist in the long-term monitoring for opioid misuse among patients suffering from chronic pain. In addition, a patient’s sociodemographic profile appears to influence the relationship between chronic pain and quality of life. Results from interventional studies were mixed. Conclusions Disparities exist within the treatment of chronic pain. Currently, it is unclear how to best combat these disparities. Further work is needed to understand why disparities exist and to identify points in patients’ treatment when they are most vulnerable to unequal care. Such work will help guide the development and implementation of effective interventions.

scholarly journals Remediation of mercury-contaminated soils and sediments using biochar: a critical review

Biochar ◽  
2021 ◽  
Author(s):  
Qian Yang ◽  
Yongjie Wang ◽  
Huan Zhong
Keyword(s):  
Health Risks ◽  
Contaminated Soils ◽  
Functional Materials ◽  
Redox Conditions ◽  
Existing Problems ◽  
Soils And Sediments ◽  
Underlying Mechanisms ◽  
Biochar Amendment

AbstractThe transformation of mercury (Hg) into the more toxic and bioaccumulative form methylmercury (MeHg) in soils and sediments can lead to the biomagnification of MeHg through the food chain, which poses ecological and health risks. In the last decade, biochar application, an in situ remediation technique, has been shown to be effective in mitigating the risks from Hg in soils and sediments. However, uncertainties associated with biochar use and its underlying mechanisms remain. Here, we summarize recent studies on the effects and advantages of biochar amendment related to Hg biogeochemistry and its bioavailability in soils and sediments and systematically analyze the progress made in understanding the underlying mechanisms responsible for reductions in Hg bioaccumulation. The existing literature indicates (1) that biochar application decreases the mobility of inorganic Hg in soils and sediments and (2) that biochar can reduce the bioavailability of MeHg and its accumulation in crops but has a complex effect on net MeHg production. In this review, two main mechanisms, a direct mechanism (e.g., Hg-biochar binding) and an indirect mechanism (e.g., biochar-impacted sulfur cycling and thus Hg-soil binding), that explain the reduction in Hg bioavailability by biochar amendment based on the interactions among biochar, soil and Hg under redox conditions are highlighted. Furthermore, the existing problems with the use of biochar to treat Hg-contaminated soils and sediments, such as the appropriate dose and the long-term effectiveness of biochar, are discussed. Further research involving laboratory tests and field applications is necessary to obtain a mechanistic understanding of the role of biochar in reducing Hg bioavailability in diverse soil types under varying redox conditions and to develop completely green and sustainable biochar-based functional materials for mitigating Hg-related health risks.

scholarly journals Recent Advances of Cell Membrane Coated Nanoparticles in Treating Cardiovascular Disorders

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3428
Author(s):  
Chaojie Zhu ◽  
Junkai Ma ◽  
Zhiheng Ji ◽  
Jie Shen ◽  
Qiwen Wang
Keyword(s):  
Cardiovascular Diseases ◽  
Cell Membrane ◽  
Preventive Therapy ◽  
Peripheral Vascular ◽  
Coating Technology ◽  
Immune Clearance ◽  
Coated Nanoparticles ◽  
Membrane Coating ◽  
Therapeutic Tools

Cardiovascular diseases (CVDs) are the leading cause of death worldwide, causing approximately 17.9 million deaths annually, an estimated 31% of all deaths, according to the WHO. CVDs are essentially rooted in atherosclerosis and are clinically classified into coronary heart disease, stroke and peripheral vascular disorders. Current clinical interventions include early diagnosis, the insertion of stents, and long-term preventive therapy. However, clinical diagnostic and therapeutic tools are subject to a number of limitations including, but not limited to, potential toxicity induced by contrast agents and unexpected bleeding caused by anti-platelet drugs. Nanomedicine has achieved great advancements in biomedical area. Among them, cell membrane coated nanoparticles, denoted as CMCNPs, have acquired enormous expectations due to their biomimetic properties. Such membrane coating technology not only helps avoid immune clearance, but also endows nanoparticles with diverse cellular and functional mimicry. In this review, we will describe the superiorities of CMCNPs in treating cardiovascular diseases and their potentials in optimizing current clinical managements.

scholarly journals Valorization of pikliz: a spicy meal garnishment in Haitian cuisine

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
James Louis-Jean ◽  
Debbie Sanon ◽  
Kevin Louis-Jean ◽  
Nicole Sanon ◽  
Ruthonce Stvil Louis-Jean ◽  
...  
Keyword(s):  
National Identity ◽  
Health Benefits ◽  
Relevant Information ◽  
Metabolic Process ◽  
Vitamin B ◽  
Fermented Foods ◽  
Biochemical Process ◽  
Potential Health ◽  
Nutritional Values ◽  
Underlying Mechanisms

AbstractThe biochemical process of fermentation (zymology) is widely practical for foods and beverages. This metabolic process involves microorganisms (bacteria) and their enzymes in the preparation and preservation of foods. Many studies have shown that fermented foods and beverages have various documented health benefits to humans, such as being high in vitamin b, and, among other benefits, having atherogenic and anticarcinogenic properties. This communication discusses the significance of fermentation in Haitian cuisine by focusing on pikliz—a spicy fermented meal garnishment that is widely popular among Haitian dishes. This analysis provides relevant information on Haitian cuisine while examining the underlying mechanisms, compositions, properties, nutritional values, and potential health benefits of pikliz. This spicy meal garnishment represents the regional, ethnic, and national identity of Haitians living in Haiti and abroad.

Management problems in the pregnant diabetic

1993 ◽  
Vol 5 (1) ◽  
pp. 29-38 ◽  
Author(s):  
FA Van Assche
Keyword(s):  
Gestational Diabetes ◽  
Pathological Condition ◽  
Metabolic Adaptation ◽  
Medical Complication ◽  
Mother And Child ◽  
Insulin Dependent ◽  
Underlying Mechanisms ◽  
Near Future ◽  
Pregnant Diabetic

Major progress has been made in the knowledge and management of diabetes and pregnancy. However diabetes in pregnancy remains an important medical complication, with implications for mother and child in both the short and the long term. There are still controversies concerning the diagnostic criteria of gestational diabetes and concerning the best strategry for the treatment of this disorder. There is even less agreement about whether gestational diabetes is a pathological condition. The perinatal mortality in gestational diabetes has recently become as low as that in the general population. This has led to the conclusion that gestational diabetes is no more than a variant of metabolic adaptation during pregnancy. However, fetal hyperinsulinism is present in gestational diabetes, resulting in macrosomia, neonatal complications and most probably long term consequences. Improvements in the care of the preexisting insulin-dependent pregnant diabetic have been achieved but further progress in understanding the underlying mechanisms and in preventing and treating the disease are important goals for the near future.

Chronic stress impacts the cardiovascular system: animal models and clinical outcomes

2015 ◽  
Vol 308 (12) ◽  
pp. H1476-H1498 ◽  
Author(s):  
Saeid Golbidi ◽  
Jefferson C. Frisbee ◽  
Ismail Laher
Keyword(s):  
Cardiovascular Diseases ◽  
Animal Models ◽  
Chronic Stress ◽  
Laboratory Findings ◽  
Important Group ◽  
Stress Markers ◽  
Random Fashion ◽  
Human Stress ◽  
Underlying Mechanisms ◽  
Psychosomatic Diseases

Psychological stresses are associated with cardiovascular diseases to the extent that cardiovascular diseases are among the most important group of psychosomatic diseases. The longstanding association between stress and cardiovascular disease exists despite a large ambiguity about the underlying mechanisms. An array of possibilities have been proposed including overactivity of the autonomic nervous system and humoral changes, which then converge on endothelial dysfunction that initiates unwanted cardiovascular consequences. We review some of the features of the two most important stress-activated systems, i.e., the humoral and nervous systems, and focus on alterations in endothelial function that could ensue as a result of these changes. Cardiac and hematologic consequences of stress are also addressed briefly. It is likely that activation of the inflammatory cascade in association with oxidative imbalance represents key pathophysiological components of stress-induced cardiovascular changes. We also review some of the commonly used animal models of stress and discuss the cardiovascular outcomes reported in these models of stress. The unique ability of animals for adaptation under stressful conditions lessens the extrapolation of laboratory findings to conditions of human stress. An animal model of unpredictable chronic stress, which applies various stress modules in a random fashion, might be a useful solution to this predicament. The use of stress markers as indicators of stress intensity is also discussed in various models of animal stress and in clinical studies.

Sign in / Sign up

Export Citation Format

Share Document