Micromorphological, anatomical and cytogenetical studies in endemic Crepis macropus Boiss. & Heldr. (Asteraceae) from Turkey

In the present study, the micromorphological structure of achene, pappus and style using scanning electron microscope (SEM), stomatal characteristics, anatomy of stem and achene together with chromosome number and nuclear DNA content of the Turkish endemic Crepis macropus Boiss. & Heldr. are provided in order to expand knowledge of its taxonomy. The SEM studies in this species show that dense spiny cells are found on the achene surface, the pappus bristle has 3–5 spikes and the style possesses slender papillae. The stem structure is composed of epidermis, collenchyma, parenchymatous cortex and pith. The species has anomocytic stomata in both the upper and the lower surface of the leaves. The pericarp of the achene is mainly composed of several layers of sclerenchymatous cells. In this species, the chromosome number is 2n = 2x = 8, karyotype consists of two submetacentric and six subtelocentric chromosomes and nuclear DNA content (2Cvalue) is 12.96 pg. These data are presented here for the first time and their taxonomic values are discussed

Burkitt’s Lymphoma: a Rare Sporadic Case

U radu je opisan slučaj devetogodišnjega dječaka s multilokularnim lezijama u objema čeljustima, uz prisutnu facijalnu asimetriju ekstraoralno te intraoralan nalaz zamjetnih gingivalnih lezija s fiksiranim oteklinama na lijevoj, te dijelovima desne strane i mandibule i maksile. Radiografske pretrage uključivale su i panoramsku rendgensku snimku na kojoj se vidi tek lagana radiolucentnost u lijevoj premolarnoj i molarnoj regiji mandibule. Incizijska biopsija obavljena je na gingivalnim masama te je histopatološka analiza potvrdila BL. Liječenje se nije moglo završiti, jer se s time nisu složili pacijentovi neškolovani roditelji iz skupine stanovništva niskoga društvenog položaja. Pacijent je umro osam mjeseci nakon što mu je bila postavljena dijagnoza. U ovom smo predstavljanju kliničkoga slučaja nastojali opisati rijedak i povremen slučaj BL-a koji je zahvaćao četiri čeljusna segmenta, što je inače obilježje endemskog oblika BL-a, te smo željeli istaknuti značenje suradnje između liječnika i pacijenta ili njegovih skrbnika.We report a case of a 9 year-old boy who had multilocular lesions in both of his jaws. There was extraoral facial asymmetry and intraoral examination revealed remarkable gingival lesions with fixed swellings on the left and right parts of both maxilla and mandible. Radiographic examination included panoramic radiograph showing only a slight radiolucency in the left premolar and molar region of mandible. Incisional biopsy of the gingival masses was performed and histopathologic examination disclosed BL. The treatment could not be completed due to the disagreement of patient’s parents who were uneducated and had a low social status. The patient died within 8 months after the diagnosis. In this report we aimed to present a rare sporadic case of BL with a four segmental involvement of the jaws which is usually seen in endemic type of BL as well as emphasize the significance of the cooperation between physicians and patients

Burkitt’s Lymphoma: a Rare Sporadic Case

U radu je opisan slučaj devetogodišnjega dječaka s multilokularnim lezijama u objema čeljustima, uz prisutnu facijalnu asimetriju ekstraoralno te intraoralan nalaz zamjetnih gingivalnih lezija s fiksiranim oteklinama na lijevoj, te dijelovima desne strane i mandibule i maksile. Radiografske pretrage uključivale su i panoramsku rendgensku snimku na kojoj se vidi tek lagana radiolucentnost u lijevoj premolarnoj i molarnoj regiji mandibule. Incizijska biopsija obavljena je na gingivalnim masama te je histopatološka analiza potvrdila BL. Liječenje se nije moglo završiti, jer se s time nisu složili pacijentovi neškolovani roditelji iz skupine stanovništva niskoga društvenog položaja. Pacijent je umro osam mjeseci nakon što mu je bila postavljena dijagnoza. U ovom smo predstavljanju kliničkoga slučaja nastojali opisati rijedak i povremen slučaj BL-a koji je zahvaćao četiri čeljusna segmenta, što je inače obilježje endemskog oblika BL-a, te smo željeli istaknuti značenje suradnje između liječnika i pacijenta ili njegovih skrbnika.We report a case of a 9 year-old boy who had multilocular lesions in both of his jaws. There was extraoral facial asymmetry and intraoral examination revealed remarkable gingival lesions with fixed swellings on the left and right parts of both maxilla and mandible. Radiographic examination included panoramic radiograph showing only a slight radiolucency in the left premolar and molar region of mandible. Incisional biopsy of the gingival masses was performed and histopathologic examination disclosed BL. The treatment could not be completed due to the disagreement of patient’s parents who were uneducated and had a low social status. The patient died within 8 months after the diagnosis. In this report we aimed to present a rare sporadic case of BL with a four segmental involvement of the jaws which is usually seen in endemic type of BL as well as emphasize the significance of the cooperation between physicians and patients

The Phenolics and Antioxidant Properties of Black and Purple versus White Eggplant Cultivars

The total phenolic content, anthocyanins, phenolic acids, antioxidant capacity and α-amylase inhibitory activity of black (Aydin Siyahi), purple (Kadife Kemer) and white (Trabzon Kadife) eggplants grown in Turkey were subjected to a comparative investigation. The black cultivar exhibited the highest total phenolic (17,193 and 6552 mg gallic acid equivalent/kg fw), flavonoid (3019 and 1160 quercetin equivalent/kg fw) and anthocyanin (1686 and 6167 g delphinidin-3-O-glucoside equivalent/kg fw) contents in crude extracts of the peel and pulp. The majority of the caffeic acid was identified in the ester (2830 mg/kg fw) and ester-bound (2594 mg/kg fw) forms in the peel of ‘Kadife Kemer’ and in the glycoside form (611.9 mg/kg fw) in ‘Aydin Siyahi’, as well as in the pulp of these two eggplants. ‘Kadife Kemer’ (purple eggplant) contained the majority of the chlorogenic acid in free form (27.55 mg/kg fw), compared to ‘Aydin Siyahi’ in the ester (7.82 mg/kg fw), glycoside (294.1 mg/kg dw) and ester-bound (2.41 mg/kg fw) forms. The eggplant cultivars (peel and pulp, mg/kg fw) exhibited a relatively high delphinidin-3-O-rutinoside concentration in the peel of ‘Aydin Siyahi’ (avg. 1162), followed by ‘Kadife Kemer’ (avg. 336.6), and ‘Trabzon Kadife’ (avg. 215.1). The crude phenolic extracts of the eggplants exhibited the highest antioxidant capacity values (peel and pulp, µmoL Trolox equivalent/kg fw) of 2,2-diphenyl-1-picrylhydrazyl (DPPH, 8156 and 2335) and oxygen radical absorbance capacity (ORAC, 37,887 and 17,648). The overall results indicate that black and purple eggplants are the cultivars with greater potential benefits in terms of their phenolics and antioxidant values than the white eggplant

A nutritional evaluation of the berry of a new grape: 'Karaerik' (Vitis vinifera L.)

Grape berries are a good source of nutrients and nutraceuticals and have many benefits for human health. Growing interest in the export potential and consumption of a new grape (cv. Karaerik), cultivated as a table grape in Turkey, encouraged us to profile its major nutrient contents from six different locations. Due to its popularity, the nutritional value of this grape berry needs to be investigated to ascertain its potential economic and health benefits. The most abundant sugars in the grape berry were fructose and glucose (peel/whole fruit; averages 236.57 and 127.87, and 183.36 and 108.60 (g kg-1 fresh weight), respectively), while the major organic acids were tartaric and malic acids (7.17 and 2.81, and 2.61 and 1.76(g kg-1 fresh weight), respectively). Linoleic acid (peel/whole fruit/seed; 37.14, 33.12 and 57.83%, respectively) was the predominant fatty acid, while potassium (peel/whole fruit/seed; 9331.5, 10226.33 and 5354 mg/g dry weight, respectively) was the predominant mineral, followed by phosphorus (1592.8, 2672 and 3072.67) in the berry. Our results demonstrate that the nutrient components and physicochemical parameters varied significantly among the sampling locations. The grape berry contains considerable quantities of potentially beneficial healthy nutrients worthy of further evaluation

COMPUTER-AIDED ANALYSIS OF MICROSTRIP ANTENNAS EMPLOYING PARASITIC ELEMENTS

The moment method in the spectral domain is used to perform a computer-aided analysis of printed antenna structures employing tuning stubs and electromagnetically coupled patches. Variation of the input VSWR versus frequency is obtained and the radiation patterns are plotted for various antenna configurations. Surface wave coupling effects are investigated. (C) 1993 John Wiley & Sons, Inc