Mobilization and transport of pesticides with runoff and suspended sediment during flooding events in an agricultural catchment of Southern Brazil.

Brazil is one of the largest consumers of pesticides in the world, and these chemicals present a high contamination risk for the country's water bodies. The mechanisms of mobilization and transport of pesticides from cropland to river systems are controlled by runoff and erosion processes occurring at the catchment scale. In addition to the excessive use of pesticides, the transport processes of these substances are also accelerated by inadequate soil management and the absence of soil conservation measures at the catchment scale.

Results of en bloc renal transplants of pediatric deceased donors into adult recipients.

Unlabelled: Various strategies have evolved to expand the donor pool due to the extreme shortage of organs. Herein we reviewed our experience with en bloc pediatric kidney transplantation since 1998.

Methods: From January 1998 to December 2004, nine adult patients underwent kidney transplantation using en bloc kidneys from donors <5 years old (range, 1 to 4).

Renal transplantation in children younger than 6 years old.

Herein we report our experience in renal transplantation in 38 children (40 transplants), ages 1 to 5 years, between 1989 and 2005. Demographics as well as patient and graft survivals are reported. Mean age at transplantation was 3.

The [Tc(N)(PNP)]2+ metal fragment labeled cholecystokinin-8 (CCK8) peptide for CCK-2 receptors imaging: in vitro and in vivo studies.

The radiolabeling of the natural octapeptide CCK8, derivatized with a cysteine residue (Cys-Gly-CCK8), by using the metal fragment [99mTc(N)(PNP3)]2+ (PNP3 = N,N-bis(dimethoxypropylphosphinoethyl)methoxyethylamine) is reported. The [99mTc(N)(NS-Cys-Gly-CCK8)(PNP3)]+ complex was obtained according to two methods (one-step or two-step procedure) that gave the desired compound in high yield. The complex is stable in aqueous solution and in phosphate buffer.

300 pediatric renal transplantations: A single-center experience.

Unlabelled: Our objective was to relate the results of 300 consecutive kidney transplants performed in children at a single center.

Patients And Methods: An analysis of kidney transplants was performed on patients less than 18 years old engrafted from May 1977 to August 2005.

Results: Among 300 kidney transplants, 48% of the patients were female, 87% were Caucasian, and 13% were African-Brazilian.