Research Highlights: How Changes to Intestinal Bacteria Affect Depressive-Like Behavior in Mice?

Related Posts Image Credit: Darryl Leja, NHGRI Original Article: https://doi.org/10.1038/s41467-020-19931-2 Depression is a mental disorder that causes a constant feeling of sadness and loss of interest. Depression is the leading cause of disability worldwide. Recent studies show that mood disorders are associated with the changes of the intestinal bacteria. Mice were exposed to mild stressors … Continue reading Research Highlights: How Changes to Intestinal Bacteria Affect Depressive-Like Behavior in Mice?

Highlights: A Chemical Compound Kills Antibiotic Resistant Bacteria

Photo Credit: Lightspring/Shutterstock.com A compound called SCH-79797 can damage and destroy cell walls and folate in bacteria.The team consists of researchers from Princeton University.The compound can kill both Gram-positive and Gram-negative bacteria without detectable resistance.The compound targets folate metabolism and membrane integrity which are two different mechanisms within one molecule. Scientists are hoping that this … Continue reading Highlights: A Chemical Compound Kills Antibiotic Resistant Bacteria

Microbes on the Human Body

Clostridium difficile. This scanning electron micrograph shows Clostridium difficile, a Gram-positive, rod-shaped bacterium that causes severe diarrhea. Infection commonly occurs after the normal gut fauna are eradicated by antibiotics, and in the hospital can be deadly to seriously ill patients. (credit: modification of work by CDC, HHS; scale-bar data from Matt Russell) OpenStax Biology 2e The … Continue reading Microbes on the Human Body

The Phototrophic Bacteria

Purple and green sulfur bacteria use bacteriochlorophylls to perform photosynthesis. Source: OpenStax Microbiology OpenStax Microbiology The phototrophic bacteria are a large and diverse category of bacteria that do not represent a taxon but, rather, a group of bacteria that use sunlight as their primary source of energy. This group contains both Proteobacteria and nonproteobacteria. They … Continue reading The Phototrophic Bacteria

Bacteria: Source of Biodegradable Plastic

Source: Urry, Lisa A.. Campbell Biology (p. 588). Pearson Education. Kindle Edition. Bacteria: Source of Biodegradable Plastic (Campbell Biology) The world produces more than 300 billion pounds of plastic from petroleum. Plastic is a material used to make bottles, containers, toys, and many other common items. Products made from plastic degrade at a much slower … Continue reading Bacteria: Source of Biodegradable Plastic

Highlights: Semen Microbiome, Sperm Impact, and Male Fertility

Image by Gerd Altmann from Pixabay PMID: 32794312 DOI: 10.1111/andr.12886 Male factor is regarded as being the cause of up to 50 percent of cases of infertility.Studies demonstrate that bacteria can affect sperm function negatively.Utilizing the next-generation sequencing (NGS) techniques have provided a better understanding of the human microbiome.Dysbiosis has been reported to impact health.Dysbiosis is a … Continue reading Highlights: Semen Microbiome, Sperm Impact, and Male Fertility

Flagella and Cilia

This transmission electron micrograph of two flagella shows the microtubules’ 9 + 2 array: nine microtubule doublets surround a single microtubule doublet. (credit: modification of work by Dartmouth Electron Microscope Facility, Dartmouth College; scale-bar data from Matt Russell) Flagella and Cilia (OpenStax Biology 2e) The flagella (singular = flagellum) are long, hair-like structures that extend from the … Continue reading Flagella and Cilia

Epsilonproteobacteria: Campylobacter and Helicobacter

Helicobater pyloriSource: OpenStax Microbiology Epsilonproteobacteria is the smallest class of Proteobacteria. These bacteria are gram-negative and can survive with a very small amount of oxygen in the environment, hence they are called microaerophilic. Campylobacter and Helicobacter are the two clinically relevant pathogenic genera in this class. Campylobacter can cause food poisoning that manifest as small … Continue reading Epsilonproteobacteria: Campylobacter and Helicobacter

Anomalopidae or Flashlight Fish

Source: https://imgur.com/WulTcA8 Source: Urry, Lisa A.. Campbell Biology (p. 395). Pearson Education. Kindle Edition. Anomalopidae or Flashlight Fish (Campbell Biology) The flashlight fish has an organ under its eye that emits light, which serves to startle predators and attract prey, and allows the fish to communicate with other fish. Some species can rotate the organ … Continue reading Anomalopidae or Flashlight Fish