Author Archives: joaobxavier

10+ years of swarming reviewed

I filmed my first swarm on February 29, 2008. I placed the inoculated Petri dish under a video camera, inside a temperature-controlled room set to 37C. The camera took a picture at every 10 minutes for 24 h, which I … Continue reading

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The impact of the gut microbiota on circulating leukocyte levels

We posted our new study on bioRxiv were we compared the impact of the microbiota white blood cells dynamics in patients receiving hematopoietic cell transplantation. We estimate that microbiota diversity can have a suppressive effect on circulating lymphocytes similar to … Continue reading

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Antibiotics and weight gain

Martin Blaser’s lab showed a few years ago that exposing mice to low doses of antibiotics very early in their lives changes their gut microbiota and makes the mice gain more fat and gain more body weight later in life. … Continue reading

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Results from auto-FMT pilot

Our team at Memorial Sloan Kettering has been investigating the intestinal microbiota of patients receiving bone marrow transplantations for more than eight years now. We have found through several studies that these patients lose important healthy bacteria from their microbiota … Continue reading

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Machine learning in simple biochemical networks

Our bow-tie paper is finally out. Here’s the teaser: How does evolution shape living organisms that seem so well adapted that they could be intelligently designed? Here, we address this question by analyzing a simple biochemical network that directs social … Continue reading

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Metabolism and the evolution of social behavior

Kerry Boyle’s PhD paper is out today. It’s still in the early-view, unformatted version but it is now officially published! In this paper we addressed a fundamental question: Why do organisms of many species seem to change their behavior toward … Continue reading

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NYC BIG 2017

A conference that used to be a meeting for Bacillus researchers in the Northeastern United States and has broadened to other bacteria as well. This year the NYC/BIG is on June 8th. Hilary Monaco and Jinyuan Yan will talk about their work on … Continue reading

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Cancer metabolites organize the tumor microenvironment

Cancer cells are not alone: As cancerous tumors grow unregulated cancer cells engage other cells, in their path of destruction like macrophages which are part of the immune system and endothelial cells which make blood vessels. This collection of non-cancer … Continue reading

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2016 lab mug

Carlos Carmona Fontaine, in between finishing his paper and starting his lab at NYU, found time to make the official 2016 Xavier Lab MUG. Colored in the beautiful parula map, the 2016 mug is the best mug in the world for … Continue reading

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NY/B.I.G. meeting

This Friday 10:00am – 6:15pm at NYU Kerry Boyle talks about “The metabolomic basis of social behavior” at 10:20-10:35. More about it: http://biology.as.nyu.edu/object/biology.events.nybig2016

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