scholarly journals Histopathological study for the effect of vitamin C on the some mice tissues treated with nitrate

2007 ◽  
Vol 31 (2) ◽  
pp. 151-158
Author(s):  
R. N. Al-saadi
Keyword(s):  
Vitamin C ◽  
Potassium Nitrate ◽  
The Other ◽  
Histopathological Study ◽  
Pathological Changes ◽  
Histopathological Changes ◽  
Other Hand ◽  
Vit C

Thirty two mice were used to study the histopathological changes resultedfrom the effect of vitamin C on the some mice tissues treated with nitrate.Mice were divided randomly in to four equal groups. The 1st group was givenVit C and potassium nitrate via water. The 2nd group was given potassium nitrateand the 3rd group received Vit C only, while the 4th group represented thecontrol.Two animals from each group were scarified weekly. The results showedsimilar pathological changes in the 1st and 2nd group especially in the stomachand intestine which gave severe changes that characterized by hyperplasticchanges in addition for the hemorrhages and the infiltrations of inflammatorycells in all layers of both organs. Less alteration was seen in the liver andkidney. On the other hand, no pathological changes in the 3rd and 4th groupwere recorded

Effects of Mandarin Cultivar on Quality of Mandarin Juice

2008 ◽  
Vol 14 (4) ◽  
pp. 307-313 ◽  
Author(s):  
F. Beltrán ◽  
A.J. Perez-López ◽  
J.M. López-Nicolás ◽  
A.A. Carbonell-Barrachina
Keyword(s):  
Vitamin C ◽  
Volatile Compounds ◽  
Experimental Results ◽  
The Other ◽  
Total Volatile ◽  
Color Coordinates ◽  
Juice Processing ◽  
Other Hand ◽  
Cielab Color

Eight mandarin cultivars have been analyzed for their content of vitamin C, minerals (Ca, Mg, K, Na, Fe, Cu, Mn, and Zn), CIELab color coordinates (L*, a*, b*, C*, and h ab), total volatile compounds content and sensory aroma intensity of juice. Experimental results proved that no important enough differences were found in the minerals contents to decide which mandarin cultivar was of higher quality. Clemenules provided the darkest juice with the highest vitamin C content and with the most intense mandarin aroma. On the other hand, Nova and Hernandina mandarin could be considered as the worst cultivars for juice production. Finally if Clemenules mandarins were not available for juice processing, Orogrande, Clemenpons, Ellendale, and Marisol could also be good options.

scholarly journals FURTHER OBSERVATIONS ON VITAMIN C THERAPY IN EXPERIMENTAL POLIOMYELITIS

1937 ◽  
Vol 66 (4) ◽  
pp. 459-477 ◽  
Author(s):  
Claus W. Jungeblut
Keyword(s):  
Vitamin C ◽  
Therapeutic Effect ◽  
Close Agreement ◽  
The Other ◽  
Virus Suspension ◽  
Natural Vitamin ◽  
Synthetic Vitamin ◽  
Other Hand ◽  
Infection Treatment

1. A group of 181 monkeys were infected intracerebrally with amounts of virus ranging from 0.01 to 0.05 cc. of a 10 per cent virus suspension. At different intervals following infection treatment of these animals was begun with daily injections of 5 to 100 mg. of natural vitamin C for a period of 2 weeks. Of 89 monkeys treated on the 1st or 2nd day of infection 26 (29.2 per cent) survived without showing any evidence of paralysis; of 53 monkeys treated on the 3rd day of the infection 23 (43.3 per cent) survived without showing any evidence of paralysis; of 39 monkeys treated on the 5th day of the infection 9 (23 per cent) survived without showing any evidence of paralysis. 2. A group of 101 monkeys were infected intracerebrally with amounts of virus ranging from 0.05 to 0.1 cc. of a 10 per cent virus suspension. At different intervals following infection treatment of these animals was begun with daily injections of 5 to 100 mg. of synthetic vitamin C for a period of 2 weeks. Of 25 monkeys treated on the 1st day of infection 2 (8 per cent) survived without showing any evidence of paralysis; of 26 monkeys treated on the 3rd day of the infection 5 (19.2 per cent) survived without showing any evidence of paralysis; of 50 monkeys treated on the 4th and 5th day of the infection 4 (8 per cent) survived without showing any evidence of paralysis. 3. The above two groups of treated animals were accompanied by a group of 98 control monkeys which were infected intracerebrally with the same amounts of virus and remained untreated. In this group there were 5 (5.1 per cent) animals which survived without showing any evidence of paralysis. 4. The figures, taken as a whole, show that among 181 monkeys treated with natural vitamin C 58 (32 per cent) survived without paralysis, and among 101 monkeys treated with synthetic vitamin C 11 (10.8 per cent) survived without paralysis. In comparing the percentage of non-paralytic survivors of the two treated groups with that of the untreated controls (5.1 per cent) it is found that about six times as many animals escaped paralysis following treatment with natural vitamin C as did the corresponding controls. In the group of animals treated with synthetic vitamin C, on the other hand, there were only about twice as many non-paralytic survivors as among the controls. 5. The results obtained in this investigation, as far as they are concerned with the therapeutic effect of natural vitamin C in experimental poliomyelitis, are in close agreement with the data previously published.

scholarly journals A study on the histological changes resulting from certain virus infections of the potato

1932 ◽  
Vol 111 (769) ◽  
pp. 74-85 ◽  
Keyword(s):  
Virus Infection ◽  
Leaf Roll ◽  
The Other ◽  
Detailed Account ◽  
Virus Infections ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Other Hand ◽  
Phloem Necrosis ◽  
Morbid Anatomy

A degeneration of the phloem elements of the potato, which occurs in plants suffering from Leaf-roll, was first described by Quanjer (1913). Since them phloem necrosis has been recorded by many workers, some ascribing it to specific pathogenic causes while others state that it occurs in both healthy and diseased plants. Esmarch (1921) states that it is always present in the ripening plant, and v. Brehmer (1923) shows three types of necrosis, viz., Nekrobiose , Obliteration and Necrosis , of which only the last is necessarily due to virus infection. On the other hand, Artschwager (1923) found necrotic changes only in virus infected and injured plants. In this paper an attempt is made to correlate the histopathological changes occuring in virus diseased plants with the external symptoms which they exhibit. A large part of the work is devoted to the morbid anatomy of certain “Streak” diseases, for a detailed account of the external symptons of which see Salaman and Bawden (1932).

Radiological and endoscopic study of the maxillary sinus in primary atrophic rhinitis

1992 ◽  
Vol 106 (8) ◽  
pp. 702-703 ◽  
Author(s):  
M. A. E. Hagrass ◽  
A. M. Gamea ◽  
S. G. El-Sherief ◽  
A. S. El-Guindy ◽  
Faika A. Y. El-Tatawi
Keyword(s):  
Maxillary Sinus ◽  
The Other ◽  
Atrophic Rhinitis ◽  
Histopathological Changes ◽  
X Ray ◽  
Small Cavity ◽  
Endoscopic Study ◽  
Other Hand ◽  
Maxillary Sinuses

AbstractThe maxillary sinuses of 40 patients suffering from primary atrophic rhinitis (ozaena) were studied radiologically, antroscopically and histopathologically. Sixty percent of the patients showed thick bony walls and a small cavity of the maxillary sinus on X-ray and on antroscopy. On the other hand, 25 percent of the cases revealed signs of infection including mucopurulent secretion on antroscopy associated with corresponding histopathological changes. It is concluded that poor pneumatization of the antrum plays a more important role in the pathogenesis of ozaena than infection.

An evaluation of physiochemical properties on aloevera gel fortified yoghurt

2017 ◽  
Author(s):  
D. Govindammal ◽  
M. Seethalakshmi ◽  
S. Thangaraj
Keyword(s):  
Vitamin C ◽  
Sensory Evaluation ◽  
Control Sample ◽  
Titratable Acidity ◽  
The Other ◽  
Physiochemical Properties ◽  
Other Hand

The present study was conducted to evaluate the effect of physicochemical and phytonutients qualities of aloevera gel fortified yoghurt. Three different concentration of yoghurt were developed with 10, 15 and 20 percent of aloevera gel addition. Based on sensory evaluation,the sample AY2 has scored higher in the overall acceptance among the samples. On the other hand, the pH and titratable acidity were found to be inversely proportional to the concentration of alovera gel addition in yoghurt. In theresults offat content that all the experimental samples were shown gradual decreasing effect when compared with the control sample. As per the result of protein, Vitamin C and minerals of experimental samples have foundconstant effect when compared to control sample.The content of fiber was absent in control whereas in the aloevera gel concentrated samples AY1, AY2 and AY3 contains 0.19, 0.23 and 0.26 respectively. On the qualities of phytonutrients of steroids, saponins, phlabotannin and anthroquinone were founde in all the samples except control.

scholarly journals Monosodium glutamate induced histological change in the Zona Fasiculata of rats' adrenal and the possible amelioration effect of vitamin C supplementation

2018 ◽  
pp. 1-7
Author(s):  
Fadia K Abdo ◽  
Zeinab A Hassan ◽  
Dalia A Mohamed ◽  
Hanaa S Mousa
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Adult Male ◽  
Monosodium Glutamate ◽  
Treated Group ◽  
The Other ◽  
Plasma Acth ◽  
Albino Rat ◽  
Other Hand ◽  
Group I

Monosodium glutamate in gesting (MSG) is steadily increasing worldwide as a flavour enhancer and food additive. On the other hand, vitamins C has antioxidant properties and can play an important role in preventing or improving many diseases. So, the aim of the present study is to study the impact of MSG administration on the histological structure of the zonafasciculata (ZF) of adult albino rat adrenal cortex and to clarify the possible amelioration effect of vitamin C cosupplementation. Thirty adult male albino rats were divided equally into three groups: group I; negative and positive (received100mg/kg vitamin C) control subgroups. MSG-treated group were administered 2 mg/g body weight MSG via gastric tube andascorbic acid supplemented group were given the same dose of MSG, followed by vitamin C at a dose similar to the positive control group. Tissue sections were obtained and proceeded for light and electron microscope examination. Plasma ACTH and cortisone were estimated. Morphometric and statistical analysis of the results were performed. Plasma ACTH and corticosterone levels in the MSG-treated group were significantly increased comparing to control and MSGtreated group receiving vitamin C. Histologically, in the MSG-treated group, ZF contained highly vacuolated cells and congested blood vessels. The reticular fibres were increased in MSG-treated group decreased in ascorbic acid supplemented group. Ultrastructurally, ZF contained cells with shrunken nuclei and numerous macrophages containing many lysosomes. On the other hand, the cellular architecture of ascorbic acid supplemented group was less affected and congested blood sinusoids were still detected. The reticular fibres were decreased in ascorbic acid supplemented group. Oral administration of MSG caused histological and functional degenerative changes in the ZF of adrenalin adult male albino rat which was ameliorated by supplementation of vitamin C. So, it is recommended to minimize consumption of foodstuffs containing MSG and to eat foods rich in vitamin C after performing more researchers to be sure of these effects on humans.MSG

scholarly journals Dormancy studies on Euphorbia dracunculoides and Astragalus spp.: major weeds of arid areas

2014 ◽  
Vol 32 (4) ◽  
pp. 747-753 ◽  
Author(s):  
R.M. Ikram ◽  
A. Tanveer ◽  
Z. Ata ◽  
M. Saqib
Keyword(s):  
Water Treatment ◽  
Potassium Nitrate ◽  
Hot Water ◽  
The Other ◽  
Arid Areas ◽  
Hot Water Treatment ◽  
Dormancy Breaking ◽  
Germination Energy ◽  
Other Hand

The aim of this study was to examine the dormancy behavior of Euphorbia dracunculoides and Astragalus spp., weeds of arid chickpea. The dormancy breaking treatments were: Gibberalic acid (GA3) and Thiourea each at 50, 100, 150, 200, 250, and 300 ppm and Potassium nitrate (KNO3) at 5,000, 10,000, 15,000, 20,000, 25,000, and 30,000 ppm (24 h soaking). Germination (G) percentage and germination energy (GE) of E. dracunculoides was maximum (89 and 22, respectively) at 250 ppm concentration of GA3 and 81.50 and 11.50 at 15000 ppm concentration of KNO3. Thiourea at 250 and 300 ppm resulted in maximum G percentage (51) and GE (25.50) of E. dracunculoides, whereas the G percentage and GE of Astragalus spp. were maximum (28 and 19, respectively) at the lowest concentration of GA3 (50 ppm). On the other hand, 5000 ppm and 150 ppm concentration of KNO3 and Thiourea showed maximum GE (19.5) and G percentage (28) of Astragalus spp., respectively. Overall, effective dormancy breaking chemical against E. dracunculoides was GA3 (250 ppm) while in Astragalus spp. none of chemicals showed very impressive results. These results showed that both weeds' seeds have dormancy in their habit. Hot water treatment and the above mentioned chemicals (best concentrations) when used with 4, 8, and 12 hours soaking showed ineffective results.

scholarly journals NORMAL AND PATHOLOGICAL FACTORS INFLUENCING THE SPREAD OF A VITAL DYE IN THE CONNECTIVE TISSUE

1938 ◽  
Vol 68 (6) ◽  
pp. 869-890 ◽  
Author(s):  
Robert J. Parsons ◽  
Philip D. McMaster
Keyword(s):  
Connective Tissue ◽  
External Pressure ◽  
The Other ◽  
Pathological Changes ◽  
Edema Formation ◽  
Early Stages ◽  
Vital Dyes ◽  
Factors Influencing ◽  
Vital Dye ◽  
Other Hand

A method has been devised to measure the spread of vital dyes in the skin of mice. Spread is greatly influenced by physiological and pathological changes which add fluid to the tissue or abstract it. Spread is greater in the quiet, living ear than in the ear of an animal just killed. It is equally considerable in the frankly edematous ears of living and dead animals, and not greater in either case than in normal, quiet tissues. During the early stages of edema formation on the other hand, dye spread is notably rapid. It is still greater in the ears of normal animals actively moving about, and is greatest in tissues subjected to very gently intermittent changes in external pressure. The significance of these findings is discussed.

A study of cometary eruptions through OH radio-lines

1999 ◽  
Vol 173 ◽  
pp. 249-254
Author(s):  
A.M. Silva ◽  
R.D. Miró
Keyword(s):  
Short Duration ◽  
Growth Curves ◽  
The Other ◽  
Initial Mass ◽  
Radio Lines ◽  
Other Hand ◽  
Sudden Rise

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

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