Federal regulators are investigating whether chicken jerky-style pet treats made in China are causing kidney problems in dogs.

No recalls have been issued.

Affected dogs may develop acquired Fanconi Syndrome, a renal condition characterized by sugar in the urine when blood sugar level is normal.

Symptoms include: Lethargy, loss of appetite, vomiting, excessive thirst and urination, abdominal pain.

Pet owners noticing these symptoms should take their animals to their veterinarians immediately.

Suspicious cases should be reported to the Food and Drug Administration. Go to www.fda.gov or call 888-463-6332.

For more information: Go to the American Veterinary Medical Association at www.avma.org or call 847-925-8070.

—Diane C. Lade