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Archive for the ‘chemistry’ category: Page 172

Oct 20, 2022

The Physiological Effects of Dandelion (Taraxacum Officinale) in Type 2 Diabetes

Posted by in categories: biotech/medical, chemistry, computing, economics

The tremendous rise in the economic burden of type 2 diabetes (T2D) has prompted a search for alternative and less expensive medicines. Dandelion offers a compelling profile of bioactive components with potential anti-diabetic properties. The Taraxacum genus from the Asteraceae family is found in the temperate zone of the Northern hemisphere. It is available in several areas around the world. In many countries, it is used as food and in some countries as therapeutics for the control and treatment of T2D. The anti-diabetic properties of dandelion are attributed to bioactive chemical components; these include chicoric acid, taraxasterol (TS), chlorogenic acid, and sesquiterpene lactones. Studies have outlined the useful pharmacological profile of dandelion for the treatment of an array of diseases, although little attention has been paid to the effects of its bioactive components on T2D to date. This review recapitulates previous work on dandelion and its potential for the treatment and prevention of T2D, highlighting its anti-diabetic properties, the structures of its chemical components, and their potential mechanisms of action in T2D. Although initial research appears promising, data on the cellular impact of dandelion are limited, necessitating further work on clonal β-cell lines (INS-1E), α-cell lines, and human skeletal cell lines for better identification of the active components that could be of use in the control and treatment of T2D. In fact, extensive in-vitro, in-vivo, and clinical research is required to investigate further the pharmacological, physiological, and biochemical mechanisms underlying the effects of dandelion-derived compounds on T2D.

Keywords: type 2 diabetes, dandelion, chlorogenic acid, chicory acid, taraxasterol, sesquiterpene.

Abbreviations: ADP — adenosine diphosphate; AFLD — alcoholic fatty liver disease; AMPK — adenosine monophosphate-activated protein kinase; ATP — adenosine triphosphate; cAMP — cyclic adenosine monophosphate; CGA — chlorogenic acid; CoA — coenzyme A; CRA — chicory acid; DAG — diacylglycerol; DBD — DNA-binding domain; DNA — deoxyribonucleic acid; DPPH — 2,2-diphenyl-1-picrylhydrazyl; Dw — dry weight; FOS — fructose oligosaccharide; G6P — glucose-6-phosphate; GDP — guanosine 5’-diphosphate; GLP-1 — glucagon-like peptide 1; GLUT2 — glucose transporter 2; GLUT4 — muscle glucose transporter protein 4; GPCR — G protein-coupled receptor; GTP — guanosine triphosphate; HNB — 2-hydroxy-5-nitrobenzenaledehyde; HPLC — high-pressure liquid chromatography; IC50 — half maximal inhibitory concentration; IDF — International Diabetes Federation; IDX-1 — islet duodenum homeobox 1; IL-1α — interleukin 1 alpha; INS-1E — rat insulinoma clonal beta-cell line; IR — insulin receptor; IRS-1 — insulin receptor substrate 1; Km — Michaelis constant; IP3 — inositol triphosphate; IRS-1 — insulin receptor substrate 1; LBD — ligand-binding domain; LC-DAD — liquid chromatography with (photo) diode array detection; LPS — lipopolysaccharide; MAPK — mitogen-activated protein kinase; NADH — nicotinamide adenine dinucleotide; NAFLD — non-alcoholic fatty liver disease; NF-κb — nuclear factor kappa B; NO — nitric oxide; PI3K — phosphatidylinositol 3 kinase; PKA — protein kinase A; PKC — protein kinase C; PPAR-γ — peroxisome proliferator-activated receptor gamma; ROS — reactive oxygen species; RxR — retinoid X receptor; SEL — sesquiterpene lactones; SUR1 — sulphonylurea receptor 1; T2D — type 2 diabetes; TAG — triacylglycerol; TNF-α — tumor necrosis factor; TO — Taraxacum officinale; TS — taraxasterol; UPLC-MS/MS — ultra-performance liquid chromatography — tandem mass spectrometry; UV/VIS — ultraviolet visible; WHO — World Health Organization.

Oct 20, 2022

New Method Converts Fish Waste Into Valuable Nanomaterial in Seconds

Posted by in categories: biotech/medical, business, chemistry, computing, nanotechnology

This could enable for microgrids for sewage disposal and more lucrative businesses in waste reclaiming through making essentially computers with waste.


A synthesis procedure developed by NITech scientists can convert fish scales obtained from fish waste into a useful carbon-based nanomaterial. Their approach uses microwaves to break the scales down thermally via pyrolysis in less than 10 seconds, yielding carbon nano-onions with unprecedented quality compared with those obtained from conventional methods. Credit: Takashi Shirai from NITech, Japan.

Continue reading “New Method Converts Fish Waste Into Valuable Nanomaterial in Seconds” »

Oct 19, 2022

Scientists Work Out How To Grow Zombie Mushrooms In A Lab — It Could Help Unlock New Virus-Fighting, Anti-Cancer Drugs

Posted by in categories: biotech/medical, chemistry, food

A team of scientists from Korea and Egypt have discovered a better way to grow insect-hunting fungi in a lab, according to research published Wednesday in Frontiers in Microbiology.

The fungi can be grown using grains like brown rice but they do not produce much cordycepin, prompting the researchers to suggest insects—which are a richer protein source and the fungi target in nature—as a better alternative. fungi, which infect and zombify insects, are difficult to cultivate but contain chemicals that could help fight cancer and viruses and possibly help treat Covid-19.

Oct 19, 2022

Plutonium: Facts about the radioactive element

Posted by in category: chemistry

Plutonium is the 94th element in the periodic table and one of the most dangerous elements on Earth. Here we explore Plutonium in more detail.

Oct 19, 2022

Antidote saved 100% of bees from lethal pesticide

Posted by in categories: chemistry, food, particle physics

Immunizing bees against pesticides.


‘We wanted to develop a strategy to detoxify managed pollinators and found we can do it by incorporating it into their food, senior author Minglin Ma, a biomaterials engineer at Cornell University told Chemistry World.

“Managed bee colonies are constantly in need of being replenished due to losses. This relieves the stress for beekeepers to meet the ever-increasing demand for pollination,” James Webb, also a co-author of the study, told Salon by email.

Continue reading “Antidote saved 100% of bees from lethal pesticide” »

Oct 18, 2022

Scientists Solve an Origin of Life Mystery

Posted by in categories: biotech/medical, chemistry

Researchers from the Universities of Cambridge and Cape Town may have found a solution to the mystery of how phosphorus came to be an essential component of life on Earth by recreating prehistoric seawater containing the element in a laboratory.

Their findings, which were published in the journal Nature Communications.

Nature Communications is a peer-reviewed, open access, multidisciplinary, scientific journal published by Nature Research. It covers the natural sciences, including physics, biology, chemistry, medicine, and earth sciences. It began publishing in 2010 and has editorial offices in London, Berlin, New York City, and Shanghai.

Oct 17, 2022

Michael Levin: Intelligence Beyond the Brain

Posted by in categories: bioengineering, biotech/medical, chemistry, ethics, genetics, robotics/AI

*Intelligence Beyond the Brain: morphogenesis as an example of the scaling of basal cognition*

*Description:*
Each of us takes the remarkable journey from physics to mind: we start life as a quiescent oocyte (collection of chemical reactions) and slowly change and acquire an advanced, centralized mind. How does unified complex cognition emerge from the collective intelligence of cells? In this talk, I will use morphogenesis to illustrate how evolution scales cognition across problem spaces. Embryos and regenerating organs produce very complex, robust anatomical structures and stop growth and remodeling when those structures are complete. One of the most remarkable things about morphogenesis is that it is not simply a feed-forward emergent process, but one that has massive plasticity: even when disrupted by manipulations such as damage or changing the sizes of cells, the system often manages to achieve its morphogenetic goal. How do cell collectives know what to build and when to stop? Constructing and repairing anatomies in novel circumstances is a remarkable example of the collective intelligence of a biological swarm. I propose that a multi-scale competency architecture is how evolution exploits physics to achieve robust machines that solve novel problems. I will describe what is known about developmental bioelectricity — a precursor to neurobiology which is used for cognitive binding in biological collectives, that scales their intelligence and the size of the goals they can pursue. I will also discuss the cognitive light cone model, and conclude with examples of synthetic living machines — a new biorobotics platform that uses some of these ideas to build novel primitive intelligences. I will end by speculating about ethics, engineering, and life in a future that integrates deeply across biological and synthetic agents.

Oct 17, 2022

‘Near-limitless CRISPR therapies’: This drug delivery breakthrough helps gene editing technology infiltrate cells

Posted by in categories: bioengineering, biotech/medical, chemistry

A team of researchers at Northwestern University has devised a new platform for gene editing that could inform the future application of a near-limitless library of CRISPR-based therapeutics.

Using chemical design and synthesis, the team brought together the Nobel-prize winning technology with therapeutic technology born in their own lab to overcome a critical limitation of CRISPR. Specifically, the groundbreaking work provides a system to deliver the cargo required for generating the gene editing machine known as CRISPR-Cas9. The team developed a way to transform the Cas-9 protein into a spherical nucleic acid (SNA) and load it with critical components as required to access a broad range of tissue and cell types, as well as the intracellular compartments required for gene editing.

Oct 17, 2022

These Nootropics May Give Your Brain the Boost It Needs To Function at Max Capacity

Posted by in categories: biotech/medical, chemistry, neuroscience

(Use Promo Code PRODANDNEURO For 15-percent Off Your First Purchase)

This is not a knock on caffeine by any means. There’s a reason people have been consuming it for thousands of years. It works by blocking the neurotransmitters in the brain that produce drowsiness. This keeps your neurons firing at full speed, which makes you feel awake. And studies show it is very effective at boosting mood. But what if you could do more for your brain than simply tricking it into being awake? What if you could give your brain nutrients that help it work better all the time? Well, with a well-designed nootropics supplement, you can.

Nootropics are often marketed as “smart drugs,” which gives the impression that they’re going to boost your IQ and turn you into a rocket scientist or brain surgeon. But that is not actually the case. Nootropics are simply chemical compounds that help create the biological conditions necessary for optimal brain function. They include things like amino acids, vitamins, minerals, nutrients, and even stimulants such as caffeine. Some of these compounds serve as fuel for cognition. Others modulate various processes involved in neurotransmission.

Oct 17, 2022

Changing direction: Research team discovers switchable electronic chirality in an achiral Kagome superconductor

Posted by in categories: biological, chemistry, quantum physics

An international research team led by the Department of Microstructured Quantum Matter at the MPSD reports the first observation of switchable chiral transport in a structurally achiral crystal, the Kagome superconductor CsV3Sb5. Their work has been published in Nature.

Whether or not an object is indistinguishable from its mirror image has important consequences for its physical behavior. Say you watch a basketball player in a mirror. The ball, the player and their surroundings are, at first glance, just the same in the mirror as in real life. But if observed closely, some details are different. The ball in the player’s now appears in their left hand in the mirror. While the mirror image still shows the same hand, it has clearly changed from a left to a right hand or vice versa. Many other physical objects also have that differ in a key aspect, just like hands, which is why scientists call them handed or chiral (from Greek χϵρι = hand). Others, like the ball, cannot be distinguished from their mirror image, which makes them achiral.

Chirality is one of the most fundamental geometric properties and plays a special role in biology, chemistry and physics. It can cause surprising effects: One version of the carvone molecule, for example, produces a spearmint smell but its chiral—mirrored—equivalent smells of caraway.