Some Stones Are Precious—Extraluminal Appendicoliths

Kidney stones are common after bariatric surgery

Obesity, a risk factor for kidney stones and chronic kidney disease (CKD), is effectively treated with bariatric surgery. However, it is unclear whether surgery alters stone or CKD risk. To determine this we studied 762 Olmsted County, Minnesota residents who underwent bariatric surgery and matched them with equally obese control individuals who did not undergo surgery. The majority of bariatri...

are simple renal cysts in childhood associated with kidney stones?

Nearly 3,000 salivary stones: some clinical and epidemiologic aspects.

OBJECTIVES/HYPOTHESIS To investigate epidemiological features and symptoms of sialolithiasis and their implications for diagnosis and management. STUDY DESIGN Retrospective cohort study. METHODS Retrospective analysis on 2,322 patients with sialolithiasis, between 1987 and 2009. The statistical significance between two sample distributions was computed using analysis of variance Student t t...

Are Simple Renal Cysts in Childhood Associated With Kidney Stones?

The renal tubules, in their various segments, are mainly responsible for the final composition of urine from glo­ merular ultrafiltrate. In a complex process involving resorption and secretion mechanisms, the tubules are responsible for retaining substances in the body, some substances are recovered almost 100% such as water and sodium chloride. Tubulopathies are a group of diseases where these...

Some Families of Graphs whose Domination Polynomials are Unimodal

Let $G$ be a simple graph of order $n$. The domination polynomial of $G$ is the polynomial $D(G, x)=sum_{i=gamma(G)}^{n} d(G,i) x^{i}$, where $d(G,i)$ is the number of dominating sets of $G$ of size $i$ and $gamma(G)$ is the domination number of $G$. In this paper we present some families of graphs whose domination polynomials are unimodal.