Black and white portrait by Mariella Bodemeier Loayza Careaga, PhD

Mariella Bodemeier Loayza Careaga, PhD

Mariella joined The Scientist in 2023. Before that, she was a postdoctoral researcher at the Uniformed Services University of the Health Sciences studying sex differences on the effects of chronic stress and traumatic brain injury. Mariella holds a master’s and a PhD in neuroscience from the Universidade Federal de Sao Paulo, Brazil, and a certificate in Science Communication from the University of California, San Diego.

Articles by Mariella Bodemeier Loayza Careaga, PhD

TK

How to Get Away from the Immune System

The human Microbiome, the genetic material of all the microbes that live on and inside the human body.

The Art of Microbial Disguise

Electron Micrograph of Wolbachia in testes of the wasp Nasonia vitripennis.

Wolbachia Turns 100: The Journey of a Triumphant Endosymbiont

invasion of the mosquitoes

A Tiny but Mighty Helper Stops Mosquito Viruses in Their Tracks

<em >Wolbachia</em> bacteria, marked in green, are found in a wasp&rsquo;s egg, where the wasp&rsquo;s DNA is shown in blue.

A Microbial Ally to Bring Science to the Masses

The infographic shows a new method where researchers used spider webs to monitor environmental eDNA of vertebrates. They demonstrated the effectiveness of their by analyzing samples from a zoo and a wildlife sanctuary.

A Spider-Web Trap to Monitor Environmental DNA

A cross section of the pistil of <em >Arabidopsis thaliana&nbsp;</em>plant. Pollen grains are labeled with fluorescent markers and sit at the top of the structure. Fluorescently tagged pollen tubes penetrate the plant&rsquo;s ovary where the ovules (small, curved structures) are located.

The Hidden Dance of Plant Fertilization

A brain section showing the mouse hippocampus. RNA molecules are shown in red.

Long Live the RNA

Two male scientists working in a laboratory.

A Matter of Molecular Attraction

Caroline Gargett, a biologist at the Hudson Institute of Medical Research in Australia, studies endometrial stem cells. She has short hair, wears glasses, and smiles at the camera.

An Endometrial Stem Cell Pioneer

A close-up picture of a fruit fly.

A Neural Circuit That Helps Flies Stay on Course

A microscopy image of a mouse embryo expressing the red fluorescent protein mCherry in the central nervous system.

Dynamic Enhancers Orchestrate Development

Two cells on a purple background. Two mechanisms of gene silencing are shown in the cell on the left, while a double-strand break in a DNA region is shown in the cell on the right.

What’s the Difference Between Gene Knockdown and Gene Knockout?

The image shows a dorsal view of a whole mount embryonic chick mandible (lower jaw).

Unveiling the Secrets of Head and Face Formation  

A scientist in a laboratory looks surprised. She holds a tube in one hand.&nbsp;

A Miscalculated Step

May digest 2025 cover
May 2025, Issue 1

Study Confirms Safety of Genetically Modified T Cells

A long-term study of nearly 800 patients demonstrated a strong safety profile for T cells engineered with viral vectors.

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Detecting Residual Cell Line-Derived DNA with Droplet Digital PCR

Detecting Residual Cell Line-Derived DNA with Droplet Digital PCR

How technology makes PCR instruments easier to use.

Making Real-Time PCR More Straightforward

Characterizing Immune Memory to COVID-19 Vaccination

Characterizing Immune Memory to COVID-19 Vaccination

Optimize PCR assays with true linear temperature gradients

Applied Biosystems™ VeriFlex™ System: True Temperature Control for PCR Protocols

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BioSkryb Genomics and Tecan introduce a single-cell multiomics workflow for sequencing-ready libraries in under ten hours

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