Modern molecular techniques have progressed to the point where sequencing can seem almost quaint. At the Basic Science Symposium of The Liver Meeting 2022, new techniques were on full display, with sessions devoted to epigenetics, microbiome analysis and spatial transcriptomics. But the first session was still on genetic variants in all their forms – rare variants, common variants and non-germline mutations.

High hopes rest on manipulating the gut microbiome in order to treat a multitude of disorders. Clinical validation for the idea has come from the success of fecal microbiome transplants to treat chronic Clostridium difficile infections. Such transplants are in clinical trials to treat other gastrointestinal disorders, and more targeted methods to manipulate the microbiome are being developed as well, not just for infections, but in a multitude of other indications. Targeting the gut microbiome may turn into a way to alleviate inflammatory bowel disease, food allergies, and even psychiatric conditions.

By pairing the expression of an inhibitory ion channel with an activity-dependent promoter, researchers have developed the first on-demand gene therapy that specifically silenced hyperactive cells and prevented epileptic seizures.

By pairing the expression of an inhibitory ion channel with an activity-dependent promoter, researchers have developed the first on-demand gene therapy that specifically silenced hyperactive cells and prevented epileptic seizures. The channels are expressed when the promoter is turned on by excessive neuronal activity, and so “we can’t stop the first seizures,” Dimitri Kullmann told BioWorld.

By pairing the expression of an inhibitory ion channel with an activity-dependent promoter, researchers have developed the first on-demand gene therapy that specifically silenced hyperactive cells and prevented epileptic seizures.

In 2021, Ardem Patapoutian won the Nobel Prize in Physiology or Medicine for his discovery of the mechanosensitive receptors Piezo1 and Piezo2. The receptors, which are ion channels that respond to mechanical pressure, are important in touch sensation, as well as regulating processes including bladder control and blood pressure. Now, investigators at The Hospital for Sick Children in Toronto, Canada, and Central South University’s Xiangya Hospital have discovered a decidedly ignoble role for Piezo2.

Diwali, the Festival of Light, marks different events depending on where it is celebrated. In some areas of India, it marks the return of Lord Rama to his birthplace of Ayodhya after defeating the demon Ravana.

Circuit dysfunction is clearly recognized as a driver of neuropsychiatric disease, and some neurodegenerative diseases such as Parkinson’s disease. And at the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) 2022 Congress, researchers made an argument that the same is true in multiple sclerosis (MS). Such a lens could explain the radiological-clinical paradox between the amount of structural damage and clinical severity.

Diwali, the Festival of Light, marks different events depending on where it is celebrated. In some areas of India, it marks the return of Lord Rama to his birthplace of Ayodhya after defeating the demon Ravana. For Vivek Subbiah, associate professor at the Department of Investigational Cancer Therapeutics, Division of Cancer Medicine of the MD Anderson Cancer Center, the story of how Rama defeated Ravana has parallels in drug discovery. Ravana had 10 heads, and when one was cut off, it grew back. Rama defeated Ravana by means of a magic arrow that entered through the demon’s navel.