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Earliest Stages of Human Development Mimicked

Scientists have modeled the first step in human development in a laboratory with the goal of better understanding how organs form. In the new study, the researchers edited groups of human pluripotent stem cells to silence genes important for cellular mechanics. The alterations prompted the cells to move around and self-organized until they were divided into two groups: Those that had been manipulated and those that had not.

Most Caregivers of Dementia Patients Need Help

Family care of an older adult has emerged as an essential element of the U.S. health care system, with 83% of long-term care provided to older adults coming from family members or other unpaid helpers. As the population of older adults grows, so too does the expectation of family care for persons living with dementia.

Study: Patient Distress Reduced by Treating Breathlessness

Breathlessness is a common symptom in advanced disease and can lead to panic and anxiety for patients and their family. It can trouble people even when resting or performing light activities around the home. With our aging population and increasing multi-morbidity, the number of people affected by breathlessness worldwide is set to rise.

Zika Virus Combated with Six Antibodies, Findings

Researchers have generated six Zika virus antibodies that could be used to test for and possibly treat a mosquito-borne disease that has infected more than 1.5 million people worldwide. The antibodies "may have the dual utility as recognized Zika virus subtypes and may be further developed to treat Zika virus infection," corresponding author Ravi Durvasula, MD, and colleagues report in a study published in the journal  PLOS ONE.

Bacteria Protected with Shape-Shifting Protein, Study Suggests

Researchers have discovered how bacterium manage to destroy enemy DNA, while keeping their own genetic material safe. When foreign bodies attack, the molecular militia that comprises our immune system goes to war. In the chaos of battle, this cavalry must be careful not to fire on its own soldiers; and organisms ranging from humans to bacteria have evolved special mechanisms to avoid this type of mix-up.