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Antibiotics make way for fungal invasion in human gut
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Antibiotics are powerful for fighting infection. But they could create a dangerous imbalance in the gut, where the eradication of harmful bacteria might make room for gut fungi to invade. To find out, researchers analyzed stool samples from 14 healthy participants. Samples were collected over 3 months following a 6-day course of antibiotics. While the bacterial community mostly rebounded over those 3 months, the fungal community shifted from one characterized largely by mutually beneficial interactions (red) to one fraught with competitive interactions (blue) with half of the bacterial-fungal interactions detected before the antibiotic treatment disappearing 3 months later. Metagenomics data revealed that certain bacteria normally help keep opportunistic fungal pathogens like Candida albicans in check. Understanding how could help researchers find ways to restore balance to the gut microbiome following drug treatment or during disease..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
11/12/2020
Antidiabetic FGF1 also reduces diabetes-associated cognitive decline in mice
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Among the many complications patients with diabetes can experience, cognitive decline is one of them. Diabetes-induced cognitive decline, or DICD, begins with damage to the central nervous system and can result in impaired learning, memory, and judgment. A recent study found that in mice with DICD, injection with the antidiabetic protein FGF1 improved cognition. In a water maze task designed to test memory, diabetic mice treated with FGF1 (db/db+FGF1) reached their goal significantly faster than untreated mice with diabetes (db/db). And the brains of untreated mice (db/db) showed more shrinkage than those of treated mice (db/db+FGF1). Further research should help clarify how FGF1 reduces symptoms of both diabetes and DICD and whether FGF1 might be an effective treatment option for patients with DICD..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
10/30/2020
Antigen-specific immunosuppression promotes immune tolerance in renal cancer
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CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Renal cancer affects over 400,000 people each year, and new treatment options are needed. A new study unraveled a paradox taking place in the immune systems of cancer patients. Myeloid-derived suppressor cells (MDSCs), driven by tumor cells, have the ability to suppress the immune responses of T cells, preventing T-cell recognition of tumor cells and allowing immune escape. However, mice and humans with renal tumors do not experience systemic immunosuppression. Researchers used mice to examine renal cancer-derived exosomes (RDEs), extracellular vesicles derived from tumor cells. They found that the proportion and activity of MDSCs in the spleen and bone marrow changed after internalization of RDEs. RDE-stimulated MDSCs inhibited T cell proliferation and cytotoxicity, and these effects were antigen-specific and driven by the molecule HSP70 in RDEs and TLR2 on MDSCs, explaining the targeted immunosuppression of the renal cancer-specific immune response..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
11/03/2020
Antimasonic Convention In Valdimor [on The] Corner-Stone March
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Public Domain
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An illustrated sheet music cover for a march dedicated to the Masons. According to the text the march was performed "at the Ceremony of laying the Corner Stone of the Masonic Temple, Boston." The illustration parodies the national convention of the Antimasonic party, held in September 1831 in Baltimore ("Valdimor"). The convention nominated William Wirt for President and Amos Ellmaker for Vice President. The attendees are pictured as asses, geese, goats, and other animals gathered at a table presided over by a donkey wearing spectacles (center). A horse at left says, "Mr. President I should like to know what course we are to pursue with regard to the Presidency. I hope no candidate will be entered who is not a "full blooded" Antimason. rather than vote for any other I will "run" for the office myself." A cat in the background says, "No secret societies." A pig at right: "...I agree with my friend opposite. To save my own "Bacon" I would not vote for any man who would not go the "Whole Hog" for Antimasonry. A dog: "...I'm not used to many words. I never spin out a long yarn without getting into a "snarl." I've only to say, that since I have em"barked" in this business I am resolved to go the hull figure." On the wall in the background a clock reads five minutes to midnight.|Boston. Published by C. Bradlee 164 Washington St.|Drawn by David Claypool Johnston.|Entered . . . 1832 by C. Bradlee.|The print appears to have been drawn by David Claypool Johnston. Malcolm Johnson records a sketch for the illustration in the collection of the American Antiquarian Society. D. C. Johnston's "Much Ado about Nothing" (see 1832-3), published in Boston slightly later, is akin in style, lettering, and in the nature of the scene. Both prints include the motif of a clock on the background wall.|Title appears as it is written on the item.|Johnson, no. 141.|Weitenkampf, p. 27.|Published in: American political prints, 1766-1876 / Bernard F. Reilly. Boston : G.K. Hall, 1991, entry 1832-1.

Subject:
History
U.S. History
Material Type:
Diagram/Illustration
Primary Source
Provider:
Library of Congress
Provider Set:
Library of Congress - Cartoons 1766-1876
Date Added:
06/13/2013
Antimicrobial resistance: Is Antarctica still a pristine environment?
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CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"The rapid spread of antimicrobial resistance (AMR) is a growing public health and environmental problem, except, presumably, in remote regions like Antarctica. Antarctica is considered the most pristine continent because of its minimal human activity confined to specific research stations, so it’s an ideal location to study the early mechanisms of AMR acquisition. Existing evidence suggests that although human gut bacteria have colonized native wildlife around research stations, AMR in birds and seals is minimal. However, the research so far has been limited, and the standards and methods used have varied widely. In addition, much of the continent remains unsampled, making a comprehensive AMR assessment impossible. Implementation of continent-wide standards for AMR reporting would help future studies produce meaningful and comparable results that can be used to understand AMR acquisition in other regions of the globe..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
05/18/2022
Antimicrobial resistance in the gut microbiome of pigs: an extensive metagenomic analysis
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Antimicrobials are commonly used in agriculture and are important for animal health. This use drives most of the antimicrobial use globally and has led to an increase in antimicrobial resistance (AMR), including resistance to antimicrobials that are critical in human medicine. Researchers recently examined the AMR profiles of over 400 pigs, including wild boars, Tibetan pigs, and commercial pigs, under multiple rearing modes. They identified over a thousand potential antimicrobial resistance gene (ARG) sequences that belonged to 69 different drug resistance classes. From this dataset a few patterns emerged. Tetracycline resistance was the most enriched, but aminoglycoside resistance had the most unique ARGs. Farm-reared pigs had higher AMR levels than semi-free-range pigs or wild boars..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
05/18/2022
Antimicrobial-specific response from resistance gene carriers in a diverse microbiome
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Antimicrobial resistance (AMR) is an increasingly serious threat to global public health. New resistance mechanisms reduce our ability to treat common infectious diseases. Although microorganisms possessing AMR genes are thought to have emerged from natural habitats, better understanding is needed. A new study sought to examine the consequences of introducing antimicrobials into natural environments. Using lichen – a model for well-defined micro-ecosystems consisting of hundreds of microbial species – researchers evaluated changes in microbial communities following exposure to different antimicrobials. They found that the native lichen microbiome comprises highly diverse and low-abundance intrinsic antimicrobial resistance genes (ARGs) to cope with antimicrobial pressure. Antimicrobial-specific shifts occurred in the structure and function of the microbiome following 10 days of exposure to antimicrobials..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
02/25/2021
Antioxidant Potential of Pediococcus Pentosaceus Strains from the Sow Milk Bacterial Collection in Weaned Piglets
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Background: In modern animal husbandry, breeders pay increasing attention to improving sow nutrition during pregnancy and lactation to favor the health of neonates. Sow milk is a main food for piglets during their first three weeks of life, which is not only a rich repository of essential nutrients and a broad range of bioactive compounds, but also an indispensable source of commensal bacteria. Maternal milk microorganisms are important sources of commensal bacteria for neonatal gut. Bacteria from maternal milk may serve as an additive to confer a health benefit on the composition of the indigenous microbiota of piglets. Methods: The sow milk microbiota was collected using the culturomics methods of Continuous Culture and Interval Sampling, following by the identification of 16S rDNA gene sequences..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Life Science
Zoology
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
06/20/2023
Antioxidant in green tea activates microbes to improve digestive health in mice
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Polyphenols are micronutrients found in a variety of plant-based foods, including red wine, chocolate, and green tea. Daily consumption of polyphenols offers several health benefits. The polyphenol EGCG, found in green tea, possesses anti-inflammatory properties and has been linked to a reduced risk of inflammatory bowel disease (IBD). But one important factor that’s remained underexplored in studies of EGCG is the effect of the gut microbiome. Now, a new study of gut microbes in mice may pave the way for understanding EGCG's anti-inflammatory effects in the intestine. Researchers first confirmed that feeding EGCG to mice with colitis alleviated symptoms of disease. Experiments then showed that EGCG altered the makeup and function of the intestinal microbial community. The team found that EGCG had the same protective and microbiome-altering effects even when given to mice before they developed colitis..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
10/14/2021
Antioxidant in mouse feces could make radiation therapy safer against cancer
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CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Radiation is a powerful therapy for fighting cancer. But it can prove toxic to tissues in the bone marrow and gastrointestinal tract, a condition known as acute radiation syndrome. In 2017, researchers discovered that transplanting fecal matter from healthy mice to mice with acute radiation syndrome can alleviate radiation toxicity. To find out how, the researchers analyzed fecal pellets from mice receiving radiation to treat tumors. They discovered elevated levels of indole 3-propionic acid, or IPA, a protective antioxidant produced by microbes in the gut, suggesting that IPA is lost following exposure to radiation. Administering IPA orally to irradiated mice recouped this loss. and produced notable improvements in the spleen and thymus of mice with acute radiation syndrome without accelerating tumor growth. The evidence suggests that administering IPA could be a safe way to prevent acute radiation syndrome during radiotherapy without requiring fecal matter transplantation..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
10/29/2020
Antiplatelet drugs might help, not harm, survivors of brain haemorrhage
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CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"More than one-third of people who’ve survived brain hemorrhage stop taking oral anti-blood-clotting drugs, like aspirin. Normally taken to prevent blood vessel blockage, so-called antiplatelet drugs increase the risk of bleeding in general. So they’re widely believed to increase the risk of brain hemorrhage happening again. But new research suggests that might not be the case. Researchers came to that conclusion following a randomized trial involving more than 500 survivors of brain hemorrhage in the UK. Participants were mostly men over the age of 70; all had a history of diseases that cause blockage of blood flow due to clotting but had stopped taking oral antiplatelet drugs after their brain hemorrhage. Researchers split those patients into two groups: half were encouraged to start antiplatelet drugs, and half were encouraged to stay off these drugs..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Applied Science
Health, Medicine and Nursing
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
09/23/2019
Antiquities of Wisconsin as Surveyed and Described by I. A. LAPHAM (1885)
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The Antiquities of Wisconsin, Increase A. Lapham's most important published work, includes 92 pages of text, illustrated with 61 wood engravings, and 55 lithographed plates and was the result of his research into the Indian effigy mounds found on Wisconsin's Landscape.

Subject:
Anthropology
Arts and Humanities
Social Science
Material Type:
Diagram/Illustration
Primary Source
Reading
Provider:
University of Wisconsin
Provider Set:
University of Wisconsin Digital Collections
Date Added:
07/05/2013
Antoine or Louis Le Nain, Peasant Family in an Interior
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CC BY-NC-SA
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This art history video discussion examines Antoine or Louis Le Nain's "Peasant Family in an Interior", 2nd quarter of the 17th century, oil on canvas (Musee du Louvre, Paris).

Subject:
Art History
Arts and Humanities
Material Type:
Diagram/Illustration
Lecture
Provider:
Khan Academy
Provider Set:
Smarthistory
Author:
Beth Harris
Steven Zucker
Date Added:
11/16/2012
Anus - Anatomy & Physiology
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CC BY-NC-ND
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The anus is the terminal portion of the alimentary tract which communicates with the external environment. Two sphincters control it's aperture. It allows faeces and gas to leave the body. Defeacation is the process where faeces are expelled from the rectum through the anus.

Subject:
Anatomy/Physiology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
WikiVet
Provider Set:
Anatomy & Physiology
Date Added:
02/05/2015
Anxiety 101
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CC BY
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The purpose of this flyer is to increase awareness of symptoms of anxiety and facts on prevalence & treatment. 

Subject:
Psychology
Material Type:
Diagram/Illustration
Author:
Taylor Weston
Date Added:
05/01/2022
Anya: Citizen Science in Siberia - Young Voices on Climate Change
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Educational Use
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Citizen scientist Anya, an indigenous Siberian girl, witnesses the changes in her community as a result of climate change after working with Woods Hole scientist Max Holmes' research team aboard her father's ship. She gets involved in collecting water samples to learn, and teach her schoolmates about, global warming.

Subject:
Applied Science
Career and Technical Education
Environmental Science
Environmental Studies
Physical Science
Material Type:
Diagram/Illustration
Reading
Provider:
CLEAN: Climate Literacy and Energy Awareness Network
Provider Set:
CLEAN: Climate Literacy and Energy Awareness Network
Author:
Lynne Cherry
Young Voices for the Planet
Date Added:
05/15/2012
Aortic Arches - Anatomy & Physiology
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CC BY-NC-ND
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After emerging from the heart, the aortic artery divides into the right and left dorsal branches. Each branch feeds into a set of arches which are unique to the embryo. Most higher vertebrates have have 6 pairs of aortic arches. In the mammal the 5th pair do not form. These arches evolve to form some of the structures of the mammalian circulation. The fate of each arch varies.

Subject:
Anatomy/Physiology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
WikiVet
Provider Set:
Anatomy & Physiology
Date Added:
02/05/2015
Apoptosis: Dance of Death
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This is a great site to learn about apoptosis. It includes pictures, information, and links to other great sites on apoptosis. There is also a video that is available for download.

Subject:
Education
Life Science
Material Type:
Diagram/Illustration
Lesson Plan
Provider:
SMARTR
Provider Set:
SMARTR: Virtual Learning Experiences for Youth
Date Added:
11/06/2010
Apoptotic mimicry as a strategy for the establishment of parasitic infections
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CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Parasitic infections affect nearly 1 in 6 people worldwide. These infections thrive when parasites are able to evade, inhibit, or disrupt host defense mechanisms. One way parasites avoid the immune response is to disguise themselves as dying host cells. Normal host cells undergoing apoptosis expose a molecule called phosphatidylserine (PS) on the plasma membrane as a signal to surrounding cells. This signal is detected by phagocytic immune cells, which engulf the dying cell and reduce inflammation. The system is co-opted by parasites, who use PS as a Trojan horse to enter phagocytic immune cells, infecting the host. This process, known as “apoptotic mimicry, ”takes several forms. Classical apoptotic mimicry - where the PS comes from the challenger - is used by the parasites that cause leishmaniasis, American trypanosomiasis, and toxoplasmosis; while non-classical apoptotic mimicry, which co-opts PS exposed by dying host cells, is used by the parasites that cause malaria and amebiasis..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
10/29/2020