What Causes Hyponatremia?
Discussion Normal kidneys regulate water balance to maintain a plasma osmolality of 275-290 mOsm/kg normally. Thirst and arginine vasopressin or antidiuretic hormone (ADH) are the primary regulators of plasma osmolality. ADH is made in the hypothalamus and released by the posterior pituitary gland. ADH acts on the kidney’s distal collecting duct to increase water reabsorption. ADH is appropriately released in hypovolemic states, such as dehydration caused by gastroenteritis. ADH has an ~10 minute half-life and therefore can respond to rapid changes in volume status. Sodium balance is regulated by aldosterone (as part...
Source: PediatricEducation.org - April 23, 2018 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news
How Does Pediatric Sj ö gren Syndrome Present?
Discussion Sjögren Syndrome (SS) is named for Swedish ophthalmologist Henrik Sjögren who published a case series in 1933 describing patients with dry eyes and arthritis. SS is a “chronic autoimmune inflammatory exocrinopathy” that is characterized by lymphocytic infiltration of the lacrimal and salivary glands and has various degrees of systematic involvement. Keratoconjunctivitis sicca and xerostomia are the main clinical symptoms. Sicca is a Latin word meaning dry. Dryness of the eyes and mouth without evidence of autoimmune disease is called Sicca syndrome or Sicca complex. SS can be primary or se...
Source: PediatricEducation.org - December 11, 2017 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news
At What Radon Level Should Mitigation Be Considered?
Discussion Radon is a naturally occurring, radioactive gas that is colorless, odorless and tasteless. It is produced from the normal radioactive decay of uranium into radium and then into 222R-Radon. Radon gas escapes from soils and rocks into the air and generally concentrates in enclosed spaces such as buildings, mines and caves. The general ionizing radiation dose received by the general public is caused by radon in large part. In homes and other buildings, soil gas is the most important source of residential radon, but other sources which are less important includes building materials and well water sources. Indoor ra...
Source: PediatricEducation.org - February 13, 2017 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news
Temsirolimus results in good but short-duration responses in primary CNS lymphoma
Single-agent therapy with temsirolimus was active in patients with relapsed/refractory primary central nervous system lymphoma, but most of the responses were short lived, results of a phase II trial... (Source: Clinical Neurology News)
Source: Clinical Neurology News - March 14, 2016 Category: Neurology Source Type: news
Transplant Drug Ups Risk for CNS LymphomaTransplant Drug Ups Risk for CNS Lymphoma
Mycophenolate mofetil may be linked to higher risk for primary central nervous system lymphoma in patients who have undergone solid organ transplants. Medscape Medical News (Source: Medscape Hematology-Oncology Headlines)
Source: Medscape Hematology-Oncology Headlines - October 20, 2015 Category: Cancer & Oncology Tags: Hematology-Oncology News Source Type: news
Is UK obesity fuelling an increase in 10 cancers?
Conclusion This large UK cohort study of more than 5 million people has found that, although there was variation in the effect of BMI on different cancers, a higher BMI was associated with increased risk of several cancers. Overall, the researchers estimated that a 1kg/m² population-wide increase in BMI would result in 3,790 additional people in the UK each year developing uterus, gallbladder, kidney, cervix, thyroid, leukaemia, liver, colon, ovarian or postmenopausal breast cancer. However, not all of the identified links were completely clear, with some showing a clearer linear association between increasing BMI an...
Source: NHS News Feed - August 14, 2014 Category: Consumer Health News Tags: Obesity Cancer Source Type: news