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Health News - Biology/Biochemistry

Ageotypes: Why do people age differently?
Stanford University researchers have identified four different biological pathways for aging. This finding may help people slow down aspects of old age. (Medical News Today)

Aggressive melanoma: Circular RNA explains spread
New research in mice and cell cultures shows for the first time that a key circular RNA can block the spread of aggressive skin cancer. (Medical News Today)

What is the autonomic nervous system?
The autonomic nervous system is a complex network of cells that control the body's internal state. Read on to discover how it works. (Medical News Today)

Why caffeine may limit weight gain
After observing the effect in rats, scientists propose that consuming caffeine can limit weight gain and other adverse effects of a pro-obesity diet. (Medical News Today)

Infections: How do our bodies know when to retaliate?
A new study shows how our cells detect if an infection with Pseudomonas aeruginosa is a serious threat and whether to mount a defence. (Medical News Today)

What causes cells to age?
A new cell culture study points to a novel role for the DNA damage repair protein CSB in protecting cells from senescence and aging. (Medical News Today)

How fish oil might reduce inflammation
A recent study showed that an enriched fish oil supplement reduced inflammation by increasing certain anti-inflammatory molecules in the blood. (Medical News Today)

What ingredients are in vaccines?
In this Special Feature article, we explore the various components that go into modern vaccines and discuss the purpose of these ingredients. (Medical News Today)

How two experimental Alzheimer's drugs reverse aging
New research in mice reveals the molecular and genetic mechanisms through which two Alzheimer's drug candidates can reverse aging in general. (Medical News Today)

Transport breakdown in brain cells may lead to Alzheimer's, Parkinson's
New research in mice and flies suggests that failure to transport molecules that break down proteins in neurons may lead to neurodegenerative diseases. (Medical News Today)

Researchers find over 40 new species of fish in one lake
Researchers have found dozens of new fish species in just one African lake — a feat of diversity. The find also proves a key point in evolutionary biology. (Medical News Today)

Study reveals how diabetes drug promotes healthy aging
Doctors often prescribe metformin for type 2 diabetes. A new mouse study on its liver mechanisms may explain its wider benefits for health and life span. (Medical News Today)

Do past medicines hold the answer to antibiotic resistance?
As the effectiveness of antibiotics wanes, scientists are looking at medications that preceded them, such as those involving metals and metalloids. (Medical News Today)

How fruit and vegetable compounds help prevent colorectal cancer
While scientists have known for some time that flavonoids can help fight colorectal cancer, the mechanisms have not been clear. Now, a study has found one. (Medical News Today)

How bacteria 'act as one' to escape antibiotics
New research reveals a mechanism by which several conspecific bacteria 'unite' to become more resistant in the fight against antibiotics. (Medical News Today)

Retinal imaging shows promise in early detection of Alzheimer's
A study of 35 people with and without Alzheimer's disease found that hyperspectral imaging of the retina could aid early diagnosis of the disease. (Medical News Today)

Diet, body clock, hormones, and metabolism: What's the link?
A new study of mice has shown how stress hormones control fat and sugar levels in a time dependent way and how a high calorie diet can alter this rhythm. (Medical News Today)

This vitamin D mechanism helps combat melanoma
Scientists have found that manipulating a cell signal, involving vitamin D, can slow the growth of melanoma cells and their advance to the lungs in mice. (Medical News Today)

A guide to female anatomy
Female anatomy includes the external genitals, or the vulva, and the internal reproductive organs. This article looks at female body parts and their functions, and it provides an interactive diagram. (Medical News Today)

Could hair analysis diagnose schizophrenia?
A new study links higher brain levels of hydrogen sulfide to a subtype of schizophrenia and proposes hair levels of a related enzyme as a biomarker. (Medical News Today)

Study challenges link between depression and inflammation
New research applies complex statistical analyses to existing data and casts doubt on the existence of a direct link between depression and inflammation. (Medical News Today)

Preventing herpes infections: Study offers new insights
A new study reveals a key protein that can encourage or slow the progression of the herpes simplex virus 1 and tests a compound that blocks the virus. (Medical News Today)

Could turmeric help solve the antibiotic resistance crisis?
New research uses nanocapsules that contain curcumin, the main ingredient in turmeric, to tackle antibiotic resistant strains of Helicobacter pylori. (Medical News Today)

How do gut microbes help mice extinguish fear memories?
A recent study of how intestinal microbes helped mice unlearn fearful memories sheds new light on the mechanisms through which the gut controls the brain. (Medical News Today)

Brain immune cells may protect against OCD, anxiety
In a new study in mice, scientists have linked a subset of brain immune cells with a defined genetic lineage to obsessive compulsion and anxiety. (Medical News Today)

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