scholarly journals Hemorrhagic Centrolobar Necrosis and Cytoplasmic Vacuolation of the Hepatocytes in Syzygium Guineense Chronic Treated Mice

2018 ◽  
pp. 99-102 ◽  
Author(s):  
Abba S ◽  
◽  
Omotoso O Dare ◽  
Keyword(s):  
Cytoplasmic Vacuolation ◽  
Syzygium Guineense

Ultrastructural diagnosis of plasmacytoma on a fine-needle aspirate

1991 ◽  
Vol 49 ◽  
pp. 102-103
Author(s):  
S. Siew ◽  
W. deMendonca-Calaca
Keyword(s):  
Mononuclear Cells ◽  
Fibrous Tissue ◽  
Needle Aspiration ◽  
Focal Lesions ◽  
Diffuse Infiltration ◽  
Fine Needle ◽  
Cytoplasmic Vacuolation ◽  
Chest Mass ◽  
Mitotic Figures ◽  
Microscopy Examination

A 36 year old man presented with a mass in the chest and multiple “hot” focal lesions were identified on bone scan. Fine needle aspiration was performed of the chest mass. Routine histology showed the presence of some bundles of dense fibrous tissue and a diffuse infiltration of mononuclear cells, which varied in size and nucleo-cytoplasmic ratio. The smaller cells had eccentric hyperchromatic nuclei. Nucleoli were noted in the larger cells. There was well marked cytoplasmic vacuolation of some of the cells. Mitosis was present. A small fragment of tissue was received for electron microscopy. Examination of 1 μm sections showed trabeculae of medium-large polygonal cells with eccentric nuclei and occasional nucleoli. Some irregularly shaped cells had well marked cytoplasmic vacuolation. Mitotic figures were present.

scholarly journals Fire suppression and seed dispersal play critical roles in the establishment of tropical forest tree species in southeastern Africa

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tomohiro Fujita
Keyword(s):  
Seed Dispersal ◽  
Tree Species ◽  
Seedling Survival ◽  
Fire Suppression ◽  
Forest Tree ◽  
Tree Seedlings ◽  
Seedling Mortality ◽  
Forest Tree Species ◽  
Seed Deposition ◽  
Syzygium Guineense

AbstractThis study examined the mechanisms of facilitation and importance of seed dispersal during establishment of forest tree species in an Afrotropical woodland. Seedling survival of Syzygium guineense ssp. afromontanum was monitored for 2.5 years at four different microsites in savannah woodland in Malawi (southeastern Africa) under Ficus natalensis (a potential nurse plant), Brachystegia floribunda (a woodland tree), Uapaca kirkiana (a woodland tree), and at a treeless site. The number of naturally established forest tree seedlings in the woodland was also counted. Additionally, S. guineense ssp. afromontanum seed deposition was monitored at the four microsites. Insect damage (9% of the total cause of mortality) and trampling by ungulates (1%) had limited impact on seedling survival in this area. Fire (43%) was found to be the most important cause of seedling mortality and fire induced mortality was especially high under U. kirkiana (74%) and at treeless site (51%). The rate was comparatively low under F. natalensis (4%) and B. floribunda (23%), where fire is thought to be inhibited due to the lack of light-demanding C4 grasses. Consequently, seedling survival under F. natalensis and B. floribunda was higher compared with the other two microsites. The seedling survival rate was similar under F. natalensis (57%) and B. floribunda (59%). However, only a few S. guineense ssp. afromontanum seedlings naturally established under B. floribunda (25/285) whereas many seedlings established under F. natalensis (146/285). These findings indicate that the facilitative mechanism of fire suppression is not the only factor affecting establishment. The seed deposition investigation revealed that most of the seeds (85%) were deposited under F. natalensis. As such, these findings suggest that in addition to fire suppression, dispersal limitations also play a role in forest-savannah dynamics in this region, especially at the community level.

Epithelioid haemangioendothelioma in the parapharyngeal space

2006 ◽  
Vol 120 (6) ◽  
pp. 505-507 ◽  
Author(s):  
J-C Lee ◽  
B-J Lee ◽  
S-G Wang ◽  
H-W Kim
Keyword(s):  
Endothelial Cells ◽  
Facial Nerve ◽  
Head And Neck ◽  
Soft Tissues ◽  
Parapharyngeal Space ◽  
Malignant Potential ◽  
Vascular Neoplasm ◽  
Cytoplasmic Vacuolation ◽  
Upper And Lower Extremities ◽  
Epithelioid Haemangioendothelioma

Epithelioid haemangioendothelioma (EHE) is an uncommon vascular neoplasm which occurs rarely in the head and neck and has an unpredictable clinical behaviour. It is characterized by round or spindle-shaped endothelial cells with cytoplasmic vacuolation. Most often, EHE arises from the soft tissues of the upper and lower extremities, and it has borderline malignant potential. We describe the first reported case of EHE in the parapharyngeal space, which was treated successfully via a transcervical–transparotid approach (following angiography with embolization), without massive intra-operative bleeding or facial nerve damage.

scholarly journals PIKfyve inhibitor cytotoxicity requires AKT suppression and excessive cytoplasmic vacuolation

2018 ◽  
Vol 356 ◽  
pp. 151-158 ◽  
Author(s):  
Ognian C. Ikonomov ◽  
George Altankov ◽  
Diego Sbrissa ◽  
Assia Shisheva
Keyword(s):  
Cytoplasmic Vacuolation

Morphology of Nicotiana tabacum cells grown in contact with lunar material

1973 ◽  
Vol 51 (1) ◽  
pp. 151-156 ◽  
Author(s):  
P. S. Baur ◽  
C. H. Walkinshaw ◽  
R. S. Halliwell ◽  
V. E. Scholes
Keyword(s):  
Nicotiana Tabacum ◽  
Tissue Cultures ◽  
Chloroplast Structure ◽  
Cytoplasmic Vacuolation ◽  
Lunar Material ◽  
Cell Association

Suspension and stationary habituated tobacco tissue cultures were examined histologically and cytologically after treatment with 0.22 g of lunar material. The treated and untreated tissues differed in chloroplast structure and distribution, degree of cell association, cytoplasmic vacuolation and vesiculation, and living to nonliving ratios.

A Novel Normethylfriedelane-Type Isoprenoid from Syzygium guineense Stem Bark

2018 ◽  
Vol 54 (1) ◽  
pp. 112-116
Author(s):  
I. A. Oladosu ◽  
O. O. Aiyelaagbe ◽  
O. E. Afieroho
Keyword(s):  
Stem Bark ◽  
Syzygium Guineense

Stagonospora atriplicis. [Descriptions of Fungi and Bacteria].

2005 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
South Africa ◽  
Biological Control ◽  
Czech Republic ◽  
New Zealand ◽  
Geographical Distribution ◽  
Biological Control Agent ◽  
Control Agent ◽  
Allenrolfea Occidentalis ◽  
Syzygium Guineense

Abstract A description is provided for Stagonospora atriplicis, a potential biological control agent of Atriplex and Chenopodium weeds. Information is included on the disease caused by the organism, its transmission, geographical distribution (Kenya, South Africa, Zimbabwe, Canada, USA, Colombia, Cyprus, Georgia, Kyrgyzstan, Russia, Australia, New Zealand, Austria, Belgium, Bulgaria, Czech Republic, Estonia, France, Germany, UK, Hungary, Italy, Latvia, Romania, Sweden, Ukraine and Hawaii) and hosts (Allenrolfea occidentalis, Atriplex spp., Chenopodium spp. and Syzygium guineense).

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