The impact of transgenerational epigenetic inheritance and early life experiences

A 2021 interview with McGill University’s Moshe Szyf: “There is a rejection of transgenerational inheritance as it goes against progressive thinking because it ties us to previous generations. The theory faces rejection because it sounds deterministic. But if you understand what epigenetics is, it’s not deterministic. There is stability, and there’s also room for dynamic … Continue reading The impact of transgenerational epigenetic inheritance and early life experiences

Trained immunity genes

This 2021 human cell study investigated trained immunity responses: “We integrated genetic, epigenetic, and functional validation data to shed light on regulation of trained immunity responses. This data integration revealed a novel role of SIGLECs and KDM4 genes on trained immunity responses. Siglec-5 is an inhibitory receptor that dampens the immune response, and was found … Continue reading Trained immunity genes

Uses of the neutrophils-to-lymphocytes ratio

This 2021 review subject was recent history and uses of the neutrophils-to-lymphocytes ratio parameter to indicate systemic inflammation and stress: “NLR is widely used across almost all medical disciplines as a reliable and easily available marker of immune response to various infectious and non-infectious stimuli. NLR reflects dynamic relationships between innate (neutrophils) and adaptive (lymphocytes) … Continue reading Uses of the neutrophils-to-lymphocytes ratio

Eat broccoli sprouts to prevent radiation damage

This 2021 rodent study investigated effects of sulforaphane on skin damage from irradiation: “Radiotherapy is currently the main treatment for various cancers. We observed the protective effect of sulforaphane (SFN) on radiation-induced skin injury (RISI), including oxidative stress and inflammatory response indexes, and Nrf2 expression with its downstream antioxidant genes: SFN prevented DNA damage caused … Continue reading Eat broccoli sprouts to prevent radiation damage

Is liver damage reversible?

This 2021 rodent study measured sequential liver changes caused by a high-fat diet: “Using a longitudinal mouse study of diet-induced obesity in male mice, we investigated kinetics of hepatic DNA methylation and gene expression compared to those of obesity-induction to assess if they could be causal for development of insulin resistance. We aimed to find … Continue reading Is liver damage reversible?

Eat broccoli sprouts for your liver

This 2021 rodent study investigated sulforaphane pretreatment’s role in reducing liver injuries: “As a double blood supply organ of the portal vein and artery, the liver is highly sensitive to ischemia, and is one of the common organs to suffer from hepatic ischemia-reperfusion injury (HI/RI). HI/RI leads to overproduction of reactive oxygen species (ROS). Overdoses … Continue reading Eat broccoli sprouts for your liver

Saving bees by regulating epigenetics

This 2021 study investigated an epigenetic treatment for bees forgetting about their hives: “Over the last few decades, numbers of both wild and managed bee pollinators have been declining. Although reasons for this decline are under debate, it is highly likely that a combination of multiple stressors is to blame, in particular, deformed wing virus … Continue reading Saving bees by regulating epigenetics

Save the bees with Brassicaceae seeds

Two 2021 papers, with the first studying bee infections: “Fungus Nosema ceranae represents one of the primary bee infection threats worldwide, and antibiotic fumagillin is the only registered product for nosemosis disease control. Natural bioactive compounds deriving from glucosinolate–myrosinase (GSL–MYR) in Brassicaceae plants, mainly isothiocyanates (ITCs), are known for antimicrobial activity against numerous pathogens and … Continue reading Save the bees with Brassicaceae seeds

Remembering encounters provides future benefits

Two 2021 papers on trained immunity, with the first a review: “Effective memory immune responses rely on interaction between innate and adaptive immune cells. While activation of innate immunity provides the first line of defense against infections, it also primes the adaptive immune response. Adaptive immunity can enhance antimicrobial machinery of innate cells, making them … Continue reading Remembering encounters provides future benefits

Intergenerational epigenetic inheritance of trained immunity

I’ll curate this 2021 rodent study Transmission of trained immunity and heterologous resistance to infections across generations (not freely available) through two instances of its news coverage: “Here we provide evidence for transmission of trained immunity across generations to murine progeny that survived a sublethal systemic infection with Candida albicans or a zymosan challenge. Progeny … Continue reading Intergenerational epigenetic inheritance of trained immunity

Do genes determine monogamy / polygamy?

This 2021 rodent study developed epigenetic clocks for deer mice: “We have undertaken a genome-wide analysis of DNA methylation in Peromyscus, spanning different species, stocks, sexes, tissues, and age cohorts. We present CpGs and enriched pathways that relate to different conditions such as chronological age, high altitude, and monogamous behavior. Analysis involved tails, whole brain, … Continue reading Do genes determine monogamy / polygamy?

Reinforce your immune memory every day

Three papers on trained immunity, with the first a 2021 review: “Trained immunity is realized by epigenetic reprogramming of cells, primarily monocytes/macrophages and natural killer cells, and is less specific than adaptive immunity. It may cross-protect against other infectious agents. Various actions of trained innate immunity on precursor cells have a strong potential for therapeutic … Continue reading Reinforce your immune memory every day

Broccoli sprouts and microRNAs

This 2021 in vitro study investigated microRNAs as potential causative factors for broccoli’s beneficial effects: “A computational analysis was performed to explore processes and pathways associated with genes targeted either by: Host-expressed miRNAs (endogenous) modulated by bioactive compounds in broccoli; or miRNAs derived from broccoli (exogenous). miRNAs are noncoding RNAs containing between 19 and 24 … Continue reading Broccoli sprouts and microRNAs

Trained immunity mechanisms

This 2021 cell study investigated how inflammatory memory is established, maintained, and recalled: “Cells retain a memory of inflammation that equips them to react quickly and broadly to diverse secondary stimuli. Temporal, dynamic changes to chromatin accessibility, histone modifications, and transcription factor (TF) binding occur during inflammation, post-resolution, and in memory recall following injury. Epigenetic … Continue reading Trained immunity mechanisms

Eat oat avenanthramides for your gut microbiota

This 2021 paper covered a 2016 human clinical trial, and several in vitro and rodent follow-up studies: “Oat has been widely accepted as a key food for human health. It is becoming increasingly evident that individual differences in metabolism determine how different individuals benefit from diet. Both host genetics and gut microbiota play important roles … Continue reading Eat oat avenanthramides for your gut microbiota