Metabolomic Response of Calotropis procera Growing in the Desert to Changes in Water Availability

Water availability is a major limitation for agricultural productivity. Plants growing in severe arid climates such as deserts provide tools for studying plant growth and performance under extreme drought conditions. The perennial species Calotropis procera used in this study is a shrub growing in many arid areas which has an exceptional ability to adapt and be productive in severe arid conditions. We describe the results of studying the metabolomic response of wild C procera plants growing in the desert to a one time water supply. Leaves of C. procera plants were taken at three time points before and 1 hour, 6 hours and 12 hours after watering and subjected to a metabolomics and lipidomics analysis. Analysis of the data reveals that within one hour after watering C. procera has already responded on the metabolic level to the sudden water availability as evidenced by major changes such as increased levels of most amino acids, a decrease in sucrose, raffinose and maltitol, a decrease in storage lipids (triacylglycerols) and an increase in membrane lipids including photosynthetic membranes. These changes still prevail at the 6 hour time point after watering however 12 hours after watering the metabolomics data are essentially indistinguishable from the prewatering state thus demonstrating not only a rapid response to water availability but also a rapid response to loss of water. Taken together these data suggest that the ability of C. procera to survive under the very harsh drought conditions prevailing in the desert might be associated with its rapid adjustments to water availability and losses

113 Invasive fungal infections among pediatric patients with hematologic malignancies at KFSH&RC/KFCCC&R

Objectives: To define the magnitude of the problem, study factors associated with increased risk of invasive fungal, infections (IFI) and outcome.Methods: From June 1998 to March 2003, all, radiological, studies of patients with hematologic/ oncologic disorders were evaluated for inclusion. AII, cases of invasive fungal, infection were reviewed. The criteria for inclusion were obvious lesion suggestive of fungal, infection shown on radiological, studies, and fungal, infections were classified as proven , probable\u27, possible or insufficient evidence according to a prior definitions.Results: A total, of 1615 patient charts were reviewed. The underlying diagnoses include ALL 410, SCT 293, AML 133, non-malignant hematology 288, NHL/solid tumors 491. 152 (9%) had evidence of fungal, infection (55 [36%] \u27definite = proven/probable\u27, 97 [64%] \u27possible\u27). Biopsy was performed in 94 cases and the findings included budding yeast in 10 patients, septated hyphae in 19, and hyphae with no specifications in 12 patients. Delays in performing diagnostic procedures possibly resulted in the lower incidence of \u27definite\u27 IFI (36% vs 64% \u27possible ). The overall, incidence of fungal, infection was 9%, being highest for AML (39%), followed by ALL (17%). The majority of IFI developed during or immediately after induction (42% of IFI in AML and 53% of IFI in ALL), which can be a target for intervention. The infections included disseminated fungal, infection (36%), CDC (11%), pulmonary fungal, infection (43%) and aspergillosis (9.5%) including pulmonary, Para nasal, sinuses, skin and disseminated. IFI was radiologically diagnosed during neutropenia in 123 patients (81%). Ten patients died due to fungal, infection (7%), 75 (49%) were cured, 26 (17%) were alive with fungal, infection, and 39 patients (26%) died due to primary disease seemingly unrelated to fungal, infection. Mortality due to IFI in this study is less than what is reported in the literature and could be a result of our practice of early intervention. The average LOS for IFI was 56 days compared with the usual. 12 days, which can add to the increased cost.Conclusions: Invasive fungal, infection is becoming a serious problem. Furthermore, acute invasive fungal, infection is associated with a much higher mortality. Early diagnosis with prompt antifungal, therapy, or even with surgical, intervention, might be warranted to save patients\u27 lives

Correlation of FXIII Val34Leu Polymorphism with Decreased Risk of Myocardial Infarction in Egypt

Aim: Factor XIII is a transglutaminase that crosslinks fibrin in the last steps of the coagulation process. A few polymorphic sites have been identified in this gene, one of them being a point mutation (FXIII Val34Leu), leading to an amino acid change of valine to leucine. Several studies were published on the association between FXIII 34Leu allele and a decreased incidence of myocardial infarction (MI) with high controversy results dependent on the population. The aim of our study was to further investigate the possible protective role of the FXIII 34Leu allele polymorphism against acute MI in Egyptian patients. Study Design: Clinical examination by cardiologist specialists, blood test for biochemical markers and DNA genotyping using specific molecular sensing probes in Real Time PCR. Place and Duration of Study: Patients were recruited from consecutive admission to the coronary care unit, Suez Canal University Hospital, Ismailia, Egypt. Material and Methods: Total 107 subjects were recruited and subdivided into two main groups; patients (82) and control group (25). On admission, the following data were fulfilled: age, smoking, history of Diabetes Mellitus (DM) and Hypertension (HTN), family history of MI. Clinical examination: Blood pressure and Body Mass Index calculation were done and for patients a short outcome prognosis was done using left ventricular Ejection Fraction (EF). Routine laboratory investigations for recruited groups including fasting and postprandial glucose level, Triglycerides, total Cholesterol, HDL-C and LDLC were carried out. Factor XIII Val34Leu was genotyped for all the recruited subjects using site specific molecular probes in real time PCR. Results: Obtained data were analyzed using OD and CI values, Pearson correlation coefficient Inter-correlations and Regression analysis model that showed insignificant association between FXIII Val34Leu polymorphism and MI patients. Conclusion: FXIII 34Leu variant has no association with reduced incidence of myocardial infarction in Egyptian patients