No abstract

Effects of secretin and Cholecystokinin-Pancreozymin (CCK-PZ) on the secretion of bile in anaesthetized rabbits have been studied. Single injections of secretin (5.0 u.kg-1) significantly increased the flow of bile irrespectively of whether the cystic duct was free or had been tied. A sustained increase in bile flow could be obtained by the continuous infusion of secretin. Cholecystokinin-Pancreozymin was effective in increasing the bile flow in doses of 1.0 u.kg-1. Much of the effect could be attributed to contraction of the gallbladder but a significant increase in flow could still be elicited after ligation of the cystic duct. Our findings strongly suggest that the biliary secretion in rabbits is not as different from the general pattern as has previously been suggested.

Young adult male and laying female quail, fed with a diet containing 2.64% Ca and 0.70% P, were used to study nutritive utilization, corporal calcium retention and endogenous excretion, calcemia, laying and properties of the egg (including the shell structure), mineralization of the femur bone, as well as the influence of diethylstilbestrol upon these parameters. The coefficient of nutritive utilization (C.N.U.) in the female was high and logically superior to that of the male, while the corporal retention was quite similar for both sexes. Most of the Ca absorbed (81.8%) and not excreted in urine, went to the egg and only 18.2% remained in the body. The diethylstilbestrol caused a big reduction of the C.N.U. in the female, but not in the male, parallel to an inhibition of laying, and an increase of corporal retention of used calcium. In both sexes the calcemia surprisingly increased, and the calcium level of the femur bone was higher, and even though the cortical osseous zone was slightly wider, the effect of treatment was noticeable, particularly in the medular tissue, which incremented in the female and appeared in the male. When quail were fed a calcium-restricted diet, the endogenous excretion of this mineral was small in the case of the female and significantly smaller in the male. This situation suppressed egg laying and resulted in a clearly decreased bone mineralization. The ingestion of diethylstilbestrol before feeding a diet poor in calcium provoked an increase of the endogenous excretion of calcium in both female and male quail.

No abstract

No abstract

A comparative analysis was carried out to observe the variation of a flexible pavement structural thickness, due to the use of different meth-ods to calculate the CBR design value, as an essential variable to estimate the Subgrade Resilient Modulus (Mr) through an empirical corre-lation. The Asphalt Institute Method and the Mean Criterion Method were applied to calculate de Design CBR value of a homogeneous roadway division from a representative track section located in the Bolivar Department, Colombia. As a result, the Design Percentiles of the CBR design unit were expanded for the Asphalt Institute method, thus, allowing the approach of more reliable and safe designs, considering that this method limits the selection percentiles to three traffic levels.

No abstract

Introduction:We determined the rate of cystoscopy with hydrodistention (CH) before and after the 2011 American Urological Association (AUA) amended clinical guideline, "Diagnosis and Treatment of Interstitial Cystitis/Bladder Pain Syndrome."Methods: Clinical encounters with a diagnosis of interstitial cystitis/bladder pain syndrome (IC/ BPS) where cystoscopy with and without hydrodistention was performed were identified in the VizientÒ Clinical Data Base between January 2009 and February 2020. Demographic and clinical information such as patient age, gender, race, treating physician specialty, insurance type and type of hospital (teaching vs nonteaching) was recorded. Descriptive statistics, Wilcoxon 2-sample test and chi-square test were used to compare variables. An interrupted time series analysis was used to assess the change in CH rate following the June 2011 AUA guideline.Results: From January 2009 to February 2020, 69,983 encounters were identified to have an IC/BPS diagnosis and to have undergone outpatient cystoscopy, of which 7,502 (10.7%) were CH. Compared to those not undergoing CH, subjects with IC/BPS undergoing CH were younger, predominantly female, Caucasian and had commercial insurance. Before the guideline, across all medical specialties, the base rate of CH was rising from 16.6% at a rate of 0.12% per month. Following guideline release, the CH rate dropped by 6.8%, declining 0.07% per month until February 2020. This pattern was most pronounced in urology relative to all other medical specialties. Conclusions:The monthly average rate of CH among individuals with IC/BPS undergoing an outpatient CH dropped from nearly 17% before the 2011 AUA guideline to less than 10% in early 2020.