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Biomedical subjects

M M Saleh

Publications and source records attributed to M M Saleh.

11 recordsLinked to original sources

Consensus on the management of obstetric cholestasis: National UK survey.

An anonymous questionnaire was sent to the lead consultant obstetricians and the midwives in charge of the antenatal clinics of all maternity units in UK to determine their current views on the diagnosis and management of obstetric cholestasis (OC). The response rate was 60%. Management policies were broadly similar and consistent with those recommended in the current literature. However, the survey highlighted areas for improvement. Based on the findings of this survey, a consensus view of the management of OC in UK is achievable.

Cholestasis↗

Evaluation of the role of day assessment unit in the management of pregnancy induced hypertension.

This study is based on an audit designed to investigate observance of the guideline on pregnancy induced hypertension (PIH) and referral to the day assessment unit (DAU) at the Royal Berkshire Hospital. The audit included 60 patients; all were first time referrals, over a period of 4 months in 2003. The main sources of cases were the community (50%), followed by the antenatal clinic (ANC) 47%. The majority (67%) were referred with hypertension. A total of 28% had suspected symptomatic pre-eclampsia. About 94% of the patients were at >or= 32 weeks' gestation. After assessment in the unit, it was found that about 47% had a diastolic blood pressure of <90 mmHg and 77% had no proteinuria. Nearly all the cases referred with symptoms were found to be asymptomatic on review. The laboratory investigations were normal in over 92% of cases. In spite of these findings, 65% of patients were followed-up in ANC and DAU. The audit showed the need for the local guideline.

Ambulatory Care↗

Seasonal variation of the lipoidal matters and hypolipidaemic activity of the red alga Corallina officinalis L.

The lipoidal matters of Corallina officinalis L. showed a seasonal nonsignificant quantitative variation. However, the fatty acids revealed a relative increase in the summer and winter, while unsaponifiable matter exhibited a slight increase in the spring. The GC/MS analysis of saponifiable and unsaponifiable matter of the algal samples collected in different seasons revealed that samples collected in the spring contained a low cholesterol content and high steroidal compounds as well as high polyunsaturated fatty acids. The alcohol extract, hexane extract and fatty acid fraction of this algal sample exhibited a significant hypolipidaemic activity. Also, two biologically active fractions of hydrocarbons were isolated by CC technique from the hexane fraction of C. officinalis L. and identified by GC/MS.

Animals↗

Antimicrobial components of some cruciferae plants (Diplotaxis harra Forsk. and Erucaria microcarpa Boiss.)

The total herb of Diplotaxis harra Forsk. on treatment with myrosinase produces isopropyl isothiocyanate and 3- butenyl isothiocyanate in addition to (the non-volatile) 2-hydroxy-3-butenyl isothiocyanate which could be obtained as 5-vinyl-2-oxazolidinethione (goitrin) and methyl 4-isothiocyanatobutyrate (Erypestrin). On treating Erucaria microcarpa Boiss, herb with myrosinase, it produces isopropyl isothiocyanate, butyl isothiocyanate and benzyl isothiocyanate in addition to the non-volatile 8-methylsulphinyloctyl isothiocyanate (hirsutin). The plant extracts contain high percentages of arachidonic and palmitic acids, nonadecane, cholesterol, stigmasterol and B-sitosterol. The volatile constituents of D. harra and E. microcarpa showed higher activity against yeasts than Gram +ve, Gram -ve bacteria and fungi. The nonmethylated fatty acids of the two herbs showed higher activity against Gram +ve and Gram -ve bacteria than yeasts and fungi.

Anti-Bacterial Agents↗

Hepato-protective effect of daturaolone isolated from Solanum arundo.

The triterpene daturaolone was isolated for the first time from Solanum arundo Mattei. The structure has been elucidated by comparison of MS and 1H NMR spectra with the reported literature data, and was confirmed by 13C NMR. The compound proved its potency in reducing the harmful effects or in maintaining the normal hepatic physiological mechanisms in both acute and chronic hepato-toxic induced liver damage in rats.

Animals↗

Fundamental frequency stability in functional dysphonia.

Functional dysphonia is a term applied to voice disorders for which there is an absence of apparent structural change in the larynx. The aim of this work was to investigate how functional dysphonia may differ acoustically from other types of dysphonia. Fundamental frequency profiles for steady vowels were generated using a software program called GLIMPES (Glottal Imaging by Processing External Signals). The fundamental frequency variations were found to be unimodal in normal individuals. In contrast, the variations for dysphonic patients were sometimes bi-modal or multi-modal due to the presence of subharmonics or low-frequency modulations. The appearance of these patterns was generally related to the severity of the dysphonia rather than to its etiology.

Adolescent↗

The essential oil of Apium graveolens var. secalinum and its cercaricidal activity.

The composition of the essential oil of the fresh aerial parts of Apium graveolens var. secalinum at its flowering stage, obtained from three different locations in Egypt, was investigated. The identification of the components of this oil was carried out by means of analytical GC and GC-MS. The main components in the oil are: alpha- and beta-pinene, myrcene, limonene, cis-beta-ocimene, gamma-terpinene, cis-allo-ocimene, trans-farnesene, humulene, apiol, beta-selinene, senkyunolide and neocnidilide. Data concerning the relative concentrations of the main components of the different celery oil samples are given. The cercaricidal effect of the essential oil has been examined on cercariae, being one of the stages in the life cycles of Schistosoma mansoni, which causes schistosomiasis. The essential oil showed in addition to a cercaricidal effect also a chemotactic effect.

Animals↗

Action of creatinol-O-phosphate on the contractility changes evoked by hypoxia and ischemia in rat isolated heart.

The effect of creatinol-O-phosphate (N-methyl-N-(beta-hydroxyethyl)guanidine O-phosphate, creatinolfosfate, Aplodan) pretreatment has been studied on the recovery of contractility of rat isolated heart after hypoxia or ischemia. In normoxia creatinol-O-phosphate (100 mumol/l) evoked a positive inotropic effect only when glucose was present in the physiological solution, it also evoked a slight negative chronotropic effect that was independent of glucose. When creatinol-O-phosphate was present during hypoxia, in the physiological solution, the recovery of the contraction after reoxygenation (in the absence of the drug) was improved in a dose-dependent manner. When creatinol-O-phosphate was present in the physiological solution before ischemia, the recovery of the contractility after reperfusion was higher than in controls; the presence of creatinol-O-phosphate during reperfusion after ischemia accelerated the recovery of contractility. The action of creatinol-O-phosphate on the recovery of cardiac contractility after ischemia was also observed in hearts partially protected with a cardioplegic solution. It is suggested that creatinol-O-phosphate could exert its cardioprotective effect by an action on anaerobic glycolysis.

Animals↗

Ultrastructural features of vocal fold nodules and polyps.

Earlier investigation did not show any clear distinctive pathological features that differentiate vocal polyps from vocal nodules. The light microscopic distinctive features between the two lesions point in the direction of a more pronounced epithelial reaction and a more fibrous stromal change in vocal nodules. In the present study, 19 vocal polyps and 11 vocal nodules were subjected to ultrastructural examination aiming at finding distinctive features that may be pathognomic for each of these clinically distinct entities. The study was carried out by EM Philips 400 T. The results demonstrate that nodules showed epithelial changes in the form of gaping of the intercellular junctions and absence of the basal lamina in parts. These changes are less apparent in polyps, whereas the stromal changes are more pronounced and varied. The significance of these results and their interpretation are discussed.

Adult↗