HOME ABOUT CONTACT AVAILABLE ISSUES SUBSCRIBE MEDIA & ADS CONFERENCE CALENDAR
LATEST UPDATES » Vol 21, No 08, August 2017 – Eye – the Window to your Soul       » Palm-Sized PCR Device for Rapid Real-Time Detection of Viruses       » Scientists Uncover New Mechanism for Diabetic Neuropathy       » China Enlists AI to Diagnose Breast Cancer       » Philips and Singapore Institute of Advanced Medicine Holdings Sign Agreement to Open First-of-its-kind Oncology Center in Singapore       » Guardian Partners with MyDoc to Address Singapore's Population Health Needs through Integrating Technology and Self-Care       » Database Boosts Shanghai's Technology Aim      
BIOBOARD - UNITED STATES
Zebrafish discovery may shed light on human kidney function

Researchers say the discovery of how sodium ions pass through the gill of a zebrafish may be a clue to understanding a key function in the human kidney.

The researchers discovered a protein responsible for gas exchanges in the fish gill structure. Specifically they studied and characterized the Na+/H+ (sodium/hydrogen) exchanger named NHE3, responsible for controlling sodium and hydrogen ions across the gill. The researchers also directly demonstrated that NHE3 can function as a Na+/NH4+ (sodium/ammonium) exchanger.

"This is significant because the fish tends to mimic the process in humans," says Michael Romero, Ph.D., a Mayo Clinic physiologist who works in nephrology. "This is the true beauty of comparative physiology — a lot of the organs function by very similar processes, down to ionic transfer."

In this case the protein allows the sodium ions to be absorbed from the forming urine while at the same time discarding waste from normally functioning cells, thus keeping the body in balance and serving as an energy saving system. The researchers say the same NHE3 protein performs a similar function in the intestine, pancreas, liver, lungs and reproductive system.

The gill is used in the fish as a transport system: sodium ions are nutrients and ammonium carries away waste. It's a key process allowing zebrafish to extract sodium ions from fresh water. In humans, NHE3 is involved in the acid-waste control system in the kidney, but there hasn't been a good analysis of that process in humans. Part of this acid-control process in the human kidney is "ammoniagenesis" which requires the initial part of the kidney tubule (proximal tubule) to export ammonia/ammonium. Physiologically, it has been assumed that NHE3 can perform a Na+/NH4+ exchange, but this has never been experimentally demonstrated.

Ammoniagenesis and increased renal sodium bicarbonate absorption are partly under the control of the renin-angiotensin-aldosterone system (RAAS), which means that this work enhances understanding of human hypertension. Researchers say their results in fish can be a clue or starting point for analyzing the process in people. Researchers say they hope to continue their work in other species and ultimately further describe the process in humans.

Click here for the complete issue.

NEWS CRUNCH  
news Vitafoods Asia 2017 heralds a new future of innovation
news Sanner receives Zero Defect Award
news AdAlta pioneers novel drug for rare lung disease
PR NEWSWIRE  
Asia Pacific Biotech News
EDITORS' CHOICE  

Lady Ganga: Nilza'S Story
COLUMNS  
Subscribe to APBN E-Newsletter
Find us under 'Others' option to receive APBN e-newsletters thrice a month!

APBN Editorial Calendar 2017
January:
Healthcare Focus: LUNGS
February:
War on CANCER
March:
Get to Know TCM
April:
Diabetes: The Big Picture
May:
The Piece of Your Mind - Brain Health/Science
June:
Advocacies in Support of Rare Disease Patients
July:
Food Science & Technology
August:
Eye – the Window to your Soul
September:
Emerging Infectious Diseases
October:
No. 1 Killer — Heart Diseases
November:
Diseases threatening our Children
December:
Skin Diseases/Allergic Reactions
Editorial calendar is subjected to changes.
MAGAZINE TAGS
About Us
Events
Available issues
Editorial Board
Letters to Editor
Instructions to Authors
Advertise with Us
CONTACT
World Scientific Publishing Co. Pte. Ltd.
5 Toh Tuck Link, Singapore 596224
Tel: 65-6466-5775
Fax: 65-6467-7667
» For Editorial Enquiries:
   biotech_edit@wspc.com or Ms Carmen
» For Subscriptions, Advertisements &
   Media Partnerships Enquiries:
   biotech_ad@wspc.com
Copyright© 2017 World Scientific Publishing Co Pte Ltd  •  Privacy Policy