Abstract We review the prospects of using yeasts and microalgae as sources cheap oils that could be used for biodiesel. conclude yeast oils, cheapest producible by heterotrophic microorganisms, are too expensive to viable alternatives major commodity plant oils. Algal similarly unlikely economic; form cultivation is in open ponds which then requires a robust, fast‐growing alga can withstand adventitious predatory protozoa or contaminating bacteria and, at same time, attain an oil content...

ABSTRACT The lipid and fatty acid composition of Porphyridium cruentum was determined as a function light intensity, temperature, pH, salinity. In cultures cultivated at the optimal temperature under non‐limiting conditions, eicosapentaenoic main polyunsaturated acid. When growth rate reduced by decreased increased cell concentration, suboptimal or salinity, content that arachidonic increased, latter becoming major

The chlorophyte Haematococcus pluvialis accumulates large quantities of astaxanthin under stress conditions. Under either nitrogen starvation or high light, the production each picogram was accompanied by that 5 3–4 pg fatty acids, respectively. In both cases, newly formed consisting mostly oleic (up to 34% acids in comparison with 13% control), palmitic, and linoleic were deposited triacylglycerols. Furthermore, enhanced accumulation acid linearily correlated astaxanthin. Astaxanthin, which...

Noradrenaline (NA) has been shown to influence astrocytic and vascular functions related brain homeostasis, metabolism, local blood flow, blood-brain barrier perme ability, In the current study, we investigate possible asso ciations that exist between NA-immunoreactive nerve termi nals astrocytes intraparenchymal vessels in rat frontoparietal cortex, both at light electron micro scopic levels.As a second step, sought determine wheth er NA innervation around intracortical microvessels arises...

The functional success rate of the ileoanal reservoir procedure for ulcerative colitis is quite high. Despite few early and late complications described there now wide-spread acceptance this in management colitis. We report a patient who developed an adenocarcinoma rectal cuff four years after having pelvic pouch procedure. This new complication brings to light several points including importance radical total mucosectomy. purpose paper discuss concern as whether or not indicated patients...

A report is given on 26 patients (18 men and 8 women) undergoing low anterior resection for carcinoma of the rectum, using both TA 55 EEA staplers. The average age was 65 years (range, 45 to 92 years). preoperative level lesion from anal verge averaged 9.8 cm 4 17 cm). All had well-differentiated or moderately lesions. lesions were removed following technique. stapler placed across lower rectum at distal margin. introduced into with anvil removed. shaft then passed through stump either...

Severeperianal involvement in Crohn's disease often is refractory to both medical and surgical treatment.The object of this study was review retrospectively the response patients with severe perianal a combination ciprofloxacin metronidazole.Fourteen (seven males, seven females, mean age 34.8 years) were treated consecutively (1000 1500 mg/day) metronidazole (500 mg/day).All had 4uiescent bowel disease.Perianal been present for 28.4 months.Six on at presentation previous surgery (mean three...

Acetylcholine is an important regulator of local cerebral blood flow. There is, however, limited information available on the possible sites action this neurotransmitter brain intraparenchymal microvessels. In study, a combination molecular and functional approaches was used to identify which five muscarinic acetylcholine receptors (mAChR) are present in human microvessels their intimately associated astroglial cells. Microvessel capillary fractions isolated from cortex were found by reverse...

Seventy-eight pregnancies in 50 patients were reviewed to evaluate the effects of Crohn's disease on outcome pregnancy and influence course disease. Overall, 21 (27 percent) had abnormal outcomes including spontaneous abortions (9), infants small for gestational age (6), premature (5), who developed respiratory distress (1). Eight (50 with active compared 13 (21 inactive at conception (P<0.05). During 15 (55 6 (12 an (P<0.001). Neither medical nor surgical treatment, independent activity,...

PURPOSE: This study was designed to evaluate the pregnancies, method of delivery, and functional results females with chronic ulcerative colitis who have an ileal pouch-anal anastomosis. METHODS: A mailed questionnaire sent all anastomosis for colitis. Information on pregnancy, outcome collected. Those had a successful pregnancy delivery were contacted by telephone clarify determine pouch results. Other clinical information obtained from Mount Sinai Hospital Inflammatory Bowel Disease...

Spectral properties of cell suspensions, individual cells, and extracts the unicellular green alga Parietochloris incisa (Reisigl) Shin Watan. grown under low light were studied. Long‐term nitrogen (N) deprivation resulted in a decrease chloroplast volume, appearance numerous large cytoplasmic oil bodies, deposition triacylglycerols with high proportion arachidonic acid. Chlorophylls b underwent synchronous decline, whereas carotenoids (Car) showed relative increase. Simultaneously,...

ADVERTISEMENT RETURN TO ISSUEPREVArticleDry ozonation. Method for stereoselective hydroxylation of saturated compounds on silica gelZvi Cohen, Ehud Keinan, Yehuda Mazur, and Tomas H. VarkonyCite this: J. Org. Chem. 1975, 40, 14, 2141–2142Publication Date (Print):July 1, 1975Publication History Published online1 May 2002Published inissue 1 July 1975https://pubs.acs.org/doi/10.1021/jo00902a035https://doi.org/10.1021/jo00902a035research-articleACS PublicationsRequest reuse permissionsArticle...