Six cases of faecal stasis in active proctocolitis are reported. In each case the left colon was severely diseased but the right colon was unaffected. X-ray studies showed retention of barium in the right colon for as long as five weeks. In two patients subacute intestinal obstruction developed and in three patients constipation was a major symptom during the active phase of colitis.

Natural selection and random genetic drift are modeled by using diffusion equations for the mean phenotype of a quantitative (polygenic) character in a finite population with two available adaptive zones or ecological niches. When there is appreciable selection, the population is likely to spend a very long time drifting around the peak in its original adaptive zone. With the mean phenotype ini...

OBJECTIVE To explore the laws of traditional Chinese medicine (TCM) syndromes in unstable angina, and to establish the preliminary diagnostic criteria for TCM syndromes. METHODS Multi-center prospective research on TCM syndromes in 815 cases of unstable angina was done with the nonlinear dimension reduction by factor analysis. RESULTS There were five extracted factors in factor analysis: F1...

Gastric emptying was studied in 12 diabetic patients, six with and six without objective evidence of autonomic neuropathy and in 20 nondiabetic controls, using a double isotope scintiscanning technique which differentiated between solid and liquid emptying. Three patients with autonomic neuropathy exhibited gastric stasis, although this was detected by conventional radiology in only one. Neithe...

Morphologic and paleozoogeographic analysis of Cenozoic marine Ostracoda from the Atlantic, Caribbean, and Pacific indicates that climatic change modulates evolution by disrupting long-term stasis and catalyzing speciation during sustained, unidirectional climatic transitions and, conversely, by maintaining morphologic stasis during rapid, high-frequency climatic oscillations. In the middle Pli...

We report the case of a 73-year-old man with massive swelling of the lower extremities, with a chronic and rather uncommon form of stasis dermatitis - stasis papillomatosis. The patient was also diagnosed with severe heart failure, including dilated cardiomyopathy, hypothyroidism that required a substantial dose of exogenous tyrosine, microcytic and megaloblastic anemia, iron deficiency, and ty...