there is considerable confusion concerning the structure and synonymity of macroscopic sarcocysts in goats. in the present work, ultrastructural and molecular study on fat and thin macrocysts of sarcocystis isolated from naturally infected goats were investigated. two forms of macrocystic sarcocysts were collected from fresh oesophagus, diaphragm, skeletal muscles and heart of slaughtered goats...

the use of ovarian stimulation for infertility treatment is associated with side effects of ovarian hyperstimulation syndrome (ohss) and potential cancer risk. this is also true in high risk women such as those polycystic with ovary (pco) and polycystic ovarian syndrome (pcos). in vitro maturation (ivm) of oocytes was primarily developed to make ivf safe for women with pco and at high risk of o...

The genus Zaprionus consists of approximately 60 species of drosophilids that are native to the Afrotropical region. The phylogenetic position of Zaprionus within the Drosophilidae family is still unresolved. In the present study, ultrastructural features of spermatozoa of 6 species of Zaprionus as well as the species Drosophila willistoni and Scaptodrosophila latifasciaeformis were analyzed. T...

Two new species of paralcyoniid octocorals are described from Japan. One of them, Ceeceenus retractus n. sp., is the fifth species of the genus, and the other, Nanalcyon sagamiense n. gen. n. sp., is proposed as a new genus. Nanalcyon is similar to the Mediterranean and Atlantic genera Maasella Poche, 1914 and Paralcyonium Milne Edwards and Haime, 1850, but the new genus clearly differs from th...

LTHOUGH AN EXTENSIVE literature has accumtilated on the electron microscopy of mammalian lymph nodes, the ultrastructure of normal nodes of human origin has received less attention. Bernhard and Granboulan1 and Granhoulan2 have reported on the ultrastructure of human lymph node cells, and recently Bernhard and Leplus have published an atlas containing electron micrographs of cells from normal a...

The ultrastructure of cardiac muscle is described. In the course of the descriptions advantage has been taken of comparative anatomy, in order to elucidate the relationships between structure and function. Physiologic parameters are discussed in a comparative manner including information from skeletal muscles fibers that often provide a well-studied point of departure. The descriptions of the u...

Maniloff, Jack (Yale University, New Haven, Conn.), Harold J. Morowitz, and Russell J. Barrnett. Ultrastructure and ribosomes of Mycoplasma gallisepticum. J. Bacteriol. 90:193-204. 1965.-The ultrastructure of Mycoplasma gallisepticum strain A5969 has been studied by electron microscopy (thin-section and negative staining), ultracentrifugation, and chemical analysis. The list of ultrastructure i...

Molecular alteration in type I collagen, i.e., substituting the α2 chain with α1 chain in tropocollagen molecule, can cause osteogenesis imperfecta (OI), a brittle bone disease, which can be represented by a mouse model (oim/oim). In this work, we use dual-frequency Atomic Force Microscopy (AFM) and incorporated with molecular modeling to quantify the ultrastructure and stiffness of the individ...

The ultrastructure of the jaws of Ordovician, Silurian, Permian and Recent Eunicida (Polychaeta) have been studied by transmission and scanning f'lectron microscopy. Primary and secondary zones have been distinguished in the ultrastructure of the jaws. The primary zone is formed of the pharyngeal cuticle containing an orthogonal network of collagen fibrils, while the secondary zone, underlying ...