Endoscopic and radiological assessment of maxillary sinus retention cyst

In this study, 30 cases with maxillary sinus cyst were evaluated clinically, radiologically and by maxillary sinus endoscopy. The majority of the cases [19 cases] were asymptomatic and discovered only during radiologic examination for other dental or ENT problems, associated rhinosinus infection account for the symptomatic cases [11 cases]. Paranasal sinus plain X-ray in different views, clearly showed the opacity of cyst as a dome-shaped homogenous density with convex upper border without bone destruction or displacement. Orthopantomogram view, in addition, accurately showed the cyst floor and its relation to the roots of the teeth. Sinuscopy, especially through the inferior meatal approach, directly visualize the cyst as regard its site, size, content and the condition of the surrounding mucosa. In addition, impairment of the sinus drainage by cyst can be accurately assessed and managed endoscopically

comparative laboratory study of different curing techniques on two mechanical properties of a silicone rubber heat cure soft lining material

In this investigation, a comparison was held between different curing techniquesusing the conventional water bath heating method and the microwave energy onthe tensile strength of a heat cure soft lining material. The results of thisstudy indicated that with the increase of microwave intensity up to 100%,while the time was constant, there was an increase in the mean values of bothtensile strength and tensile bond strength of silicone rubber soft liningmaterial. On the other hand, specimens of silicone rubber soft liner materialcured by microwave technique using 100% intensity showed no significantdifference between them and those cured with the conventional water bathtechnique

Cholesterol turnover in patients with Schistosomal hepato-splenic disease in Egypt

A study of cholesterol turnover was carried out using intravenous injection of labelled cholesterol [4-C[14]]. The material of this study included twenty patients with hepatosplenic schistosomiasis mansoni; half of them with ascites, as well as ten healthy control subjects. There was a lower turnover of cholesterol in patients with schistosomal hepatic fibrosis when compared with control subjects. This difference has been demonstrated in several parameters of cholesterol turnover, namely input through the rapidly exchangeable pool A, transfer rate, and fractional, removal rate of cholesterol from pool A to pool B. Thus, we could conclude that the liver which is the main organ for cholesterol metabolism is abnormally functioning in relation to cholesterol turnover in patients with schistosomal hepato-splenic disease. This, together with malabsorption through the intestines would explain the lower level of serum cholesterol encountered in these patients

Effect of deprivation of food of animal source on blood lipids

38 subjects were put on a dietary regeme depending mainly on all foods of plant origin, polyunsaturated oils, cereal proteins, vegetables, carbohydrates and fruits. All types of foods of animal origin were prohibited. This regeme continued for a period of 55 days. Study of blood lipids before and after this period revealed diminution of total cholesterol, LDL cholesterol and HDL cholesterol, while VLDL cholesterol showed inconsistant variation. Serum triglycerides and pre-beta lipoproteins showed a moderate non significant increase. The results were discussed and compared with other reports

role of collaterals in the specific humoral immune response in patients with schistosomal hepatic fibrosis

The role of collaterals in the specific humoral immune response to schistosomal egg antigen [SEA] was studied in 25 patients with schistosomal hepatic fibrosis [SHF] with collaterals, 10 patients with SHF without collaterals and 20 healthy control subjects. In vivo and in vitro tests for humoral immunity to SEA included serum immunoglobulins estimation, immediate intradermal test, indirect hemagglutination test and determination of B-lymphocyte count in peripheral blood

Study of blood lipids in Schistosomal patients with and without collaterals

Blood lipids including, total cholesterol, low density lipoprotein [LDL] cholesterol, high density lipoprotein [HDL] cholesterol, serum triglycerides and lipoprotein fractions were studied in a group of Shistosomal hepatic fibrosis [S.H.F.] patients. Patients were divided into two groups : Group A, consisted of 15 patients with collaterals and group B included 15 pateints without collaterals. Total cholesterol, LDL cholesterol and low density lipoprotein decreased significantly in the group with collaterals, while other blood lipids showed no significant difference between the two groups. Results were discussed and compared with the work of other investigators

Study of effects of insulin on haemostatic system in obese and control subjects

The haemostatic effect of intravenous insulin administration was investigated in obese and control subjects. A hypercoagulability state was elucidated by enhancement of thromboplastin generation and increase of platelet adhesiveness. Stimulation of catecholamine release is supposed to be an underlying factor. An associated enhancement of fibrinolysis was observed and was less marked in obese than control subjects. Such findings point to paradoxical effects of insulin on the haemostatic parameters

Glucose tolerance, plasma insulin, growth hormone, and free fatty acids in hepatic schistosomiasis

The purpose of the present study was to examine glucose tolerance in hepatic schitosomiasis together with some factors which may affect this tolerance. In forty-nine patients, the glucose disappearance rate was slower than in controls [1.27 + 0.28 and 1.64 +/- 0.26 per cent per minute, means +/- S.D., respectively]. The exogenous insulin sensitivity tests were normal and the insulin response after intravenous glucose administration was comparable to controls except after 90 minutes when it was significantly higher in hepatic schistosomiasis patients than controls [24.45 +/- 14.6 and 16.44 +/- 7.8 uU/ml. mean +/- S.D., respectively]. The growth hormone response to intravenous insulin administration was also comparable to controls. The plasma free fatty acids [FFA] were significantly higher in schistosomal patients than controls 592 +/- 172 and 209 +/- 97 ueq/1, mean +/- S.D., respectively.]. It is suggested that the glucose intolerance demonstrated in hepatic schitosomiasis might be due to a relative decrease of insulin secretion. Raised plasma FFA may also play a part