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Development of new stem cell type may lead to advances in regenerative medicine

A team has derived a new ‘intermediate’ embryonic stem cell type from multiple species that can contribute to chimeras and create precursors to sperm and eggs in a culture dish. A team led by UT Southwestern has derived a new “intermediate” embryonic stem cell type from multiple species that can contribute to chimeras and create …
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Layered cocktails inspire new form of male birth control

For decades, women have shouldered most of the burden of contraception. However, long-term use of female birth control pills could increase the risk for side-effects such as blood clots or breast cancer. Now, inspired by colorful layered cocktails, researchers have developed a medium-term, reversible male contraceptive. Common forms of male contraception are either short-term (condoms) …
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Could our immune system be why COVID-19 is so deadly?

By analyzing over 5,000 scientific studies to find those containing immune response data from patients, researchers show that SARS-CoV-2 has a unique tendency of halting the rise of specific cytokines in certain patients, when compared to other similar viruses. Respiratory viruses such as SARS-CoV-2 (causing COVID-19) can often catalyse an overactive immune response that leads …
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Study of coronavirus variants predicts virus evolving to escape current vaccines

A new study suggests current vaccines and monoclonal antibody therapies provide less neutralizing activity against the U.K. and South Africa variants of SARS-CoV-2 A new study of the U.K. and South Africa variants of SARS-CoV-2 predicts that current vaccines and certain monoclonal antibodies may be less effective at neutralizing these variants and that the new …
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Immune system mounts a lasting defense after recovery from COVID-19, researchers find

Study participants continued to improve their antibodies months after initial infection, potentially due to exposure to remnants of the virus hidden in the gut. As the number of people who have fought off SARS-CoV-2 climbs ever higher, a critical question has grown in importance: How long will their immunity to the novel coronavirus last? A …
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Oral contraceptive pills protect against ovarian and endometrial cancer

A comprehensive study involving more than 250,000 women, shows that oral contraceptive use protects against ovarian and endometrial cancer. The protective effect remains for several decades after discontinuing the use. A comprehensive study from Uppsala University, involving more than 250,000 women, shows that oral contraceptive use protects against ovarian and endometrial cancer. The protective effect …
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Impact of COVID-19 in Africa ‘vastly underestimated’, warn researchers.

Study from Zambia shows many more deaths than official reports suggest in a study published by BMJ. The impact of COVID-19 in Africa has been vastly underestimated, warn researchers in a new study that showed that COVID-19 deaths accounted for 15 to 20 percent of all sampled deaths — many more than official reports suggest …
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Potentially harmful chemicals found in plastic toys

New research suggests that more than 100 chemicals found in plastic toy materials may pose possible health risks to children. The study provides findings that may lead to stricter international regulations. It has long been known that several chemicals used in plastic toys in different parts of the world can be harmful to human health. …
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