August 2022
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Histones
In biology, histones are highly basic proteins abundant in lysine and arginine residues that are found in eukaryotic cell nuclei. They act as spools around which DNA winds to create structural units called nucleosomes.[1][2] Nucleosomes in turn are wrapped into 30-nanometer fibers that form tightly packed chromatin. Histones… Read more.
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Heterochromatin
Heterochromatin is a tightly packed form of DNA or condensed DNA, which comes in multiple varieties. These varieties lie on a continuum between the two extremes of constitutive heterochromatin and facultative heterochromatin. Both play a role in… Read more.
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Leydig cells aka interstitial cells of the testes and interstitial cells of Leydig
Leydig cells, also known as interstitial cells of the testes and interstitial cells of Leydig, are found adjacent to the seminiferous tubules in the testicle and produce testosterone in the presence of luteinizing hormone (LH).[1][2] They are polyhedral in shape and have… Read more.
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What Is Nitrophenol? (besides something mentioned in ‘Scientific Opinion on the re‐evaluation of aspartame as a food additive’)
Nitrophenols are compounds of the formula HOC6H5−x(NO2)x. The conjugate bases are called nitrophenolates. Nitrophenols are more acidic than phenol itself. Wikipedia Mono-nitrophenols with the formula HOC6H4NO2. Three isomeric nitrophenols exist: o-Nitrophenol (2-nitrophenol; OH and NO2 groups are neighboring;… Read more.
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“Physicians in the Nazi Party”
This list may not reflect recent changes (learn more). A Kurt Albrecht (Mediziner) [de], psychiatrist. Germany Hans Asperger, Austrian psychiatrist, used human test subjects; Asperger syndrome named after him. B Dr. Karl Babor. German Wikipedia entry… Read more.
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Another reason not to feed pigeons – your food is poison?
I can’t tell you why except they showed up on a wiki search. Climate change has a negative effect on this bird, and reproductive performance decreases with increased temperatures. It… Read more.
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What is the difference between teratogenic and embryotoxic?
Embryotoxicity is any morphological or functional alteration caused by chemical or physical agents that interferes with normal growth, homeostasis, development, and differentiation of fetus. Gametogenesis, Fertilization and Early Development – Environmental Contaminants… Read more.
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Phenol injections – originally used by the Nazis as part of the Aktion T4 euthanasia program – were used as a means of individual execution by Nazi Germany during the Second World War.
The toxic effect of phenol on the central nervous system, causes sudden collapse and loss of consciousness in both humans and animals; a state of cramping precedes these symptoms because… Read more.
