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Science News for January 20, 2000


Blood test to predict diabetes in children

Researchers developed a reliable blood test to diagnose diabetes in children at an early stage, allowing for prediction of the condition with a reliability of 50%. The test measures concentration of islet antibodies in a child's blood and combines it with DNA testing for hereditary susceptibility.

SourceNetherlands Organization for Scientific Research·DateJan 20, 2000

Obesity gene controls bone density via brain pathway

Researchers discovered a novel pathway controlling bone formation and density through the brain's hypothalamus, where leptin acts as a natural bone inhibitor. This finding offers potential treatment approaches for osteoporosis by manipulating the leptin pathway.

SourceNIH/National Institute of Dental and Craniofacial Research·JournalCell·DateJan 20, 2000

A crucial protein prevents miscarriages in mice

A research team has found that the immune system protein Crry is essential for fetomaternal tolerance in mice, preventing destruction of the developing fetus. Without this protein, complement components activate, leading to embryonic death and miscarriage.

SourceWashU Medicine·JournalScience·DateJan 20, 2000
Nikon Monarch 5 8x42 Binoculars

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New clues to genes tied to polycystic kidney disease

Researchers at Yale have discovered new insights into the development of polycystic kidney disease (PKD), a life-threatening genetic disorder affecting millions. The study reveals crucial information about the PKD2 gene's role in normal development and its impact when mutated.

SourceYale University·JournalNature Genetics·DateJan 20, 2000

Researchers glimpse polio virus as it enters host cell

Researchers have produced the first 3-D structures of poliovirus in the moments after it attaches to and enters a host cell. The structures reveal tiny adjustments in the virus's protein shell that allow it to grab onto its host receptor more tightly.

SourceHarvard Medical School·JournalJournal of Virology·DateJan 20, 2000

University of Chicago researchers uncover first steps in cell-cell adhesion process

Researchers at the University of Chicago discovered how neighboring skin cells adhere to form sealed barriers, a critical function for maintaining body fluids and keeping germs out. The study found that calcium concentration plays a crucial role in this process, enabling the formation of adherence junctions and 'puncta' between cells.

SourceUniversity of Chicago Medical Center·JournalCell·DateJan 20, 2000
Apple iPhone 17 Pro

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With new long-term care options beckoning, percentage of older Americans in nursing homes is declining, report says

The percentage of Americans aged 65 and older in nursing homes has declined since the mid-1980s, with increasing numbers opting for assisted living and care within their own homes. This shift is attributed to declining disability rates among the elderly and the growing availability of alternative long-term care options.

SourceBrandeis University·JournalHealth Affairs·DateJan 20, 2000