نتایج جستجو برای: outer hyperechogenic zone
تعداد نتایج: 173169 فیلتر نتایج به سال:
*Corresponding Author Kemei Peng [email protected] The Ostrich tibia belongs to the long bone, which has a complex structure comprising to different types of bone cell, a calcified extracellular matrix and two crisscross pipelines. Few present report concerning on the histological structure of Ostrich tibia had been carried out. This experiment was carried out to investigate the Tibia Morpholo...
Major nonprimate-primate differences in cortico-genesis include the dimensions, precursor lineages, and developmental timing of the germinal zones (GZs). microRNAs (miRNAs) of laser-dissected GZ compartments and cortical plate (CP) from embryonic E80 macaque visual cortex were deep sequenced. The CP and the GZ including ventricular zone (VZ) and outer and inner subcompartments of the outer subv...
In five species of squid, varying in life-style from fast-swimming pelagic predators to sluggish benthic forms, the circular muscle of the mantle was found to be metabolically and structurally differentiated into inner, middle, and outer zones. In the middle zone, mitochondrial abundance and the ratios of oxidative to glycolytic enzyme activities were low. This zone was sandwiched between thinn...
PURPOSE To report an unusual case of neuroretinitis caused by Bartonella quintana and its spectral-domain optical coherence tomographic (SD-OCT) features. METHODS A 12-year-old girl presented with unilateral neuroretinitis with stellate maculopathy. Bartonellosis was confirmed after serologic testing for antibodies to B. quintana. RESULTS Color photograph of the right eye revealed papilliti...
The genetic pattern for obtaining a darkly pigmented Royal College of Surgeons' (RCS) rat is described. The rat dystrophy initially shows a build-up of rod outer segment material because the pigment epithelium does not phagocytize it. The progressive ophthalmoscopic appearance of the fundus of the pigmented dystrophic eye is described. The first abnormal finding is a lightening of the retinal a...
OBJECTIVES Sarcoplasmic reticulum (SR) Ca2+ uptake, myocardial high energy content and histology were examined in different zones of hearts from patients with ischemic cardiomyopathy. METHODS AND RESULTS Unfractionated homogenates were prepared from left ventricular samples obtained in three zones of each heart: an infarct-remote zone, an outer peri-infarct zone, and an inner peri-infarct zon...
BACKGROUND Interleukin 16 (IL-16) acts highly chemotactic on CD4-bearing cells. Besides chemotaxis, IL-16 has numerous immunomodulatory effects, and not only on T cells. OBJECTIVE To determine IL-16 expression in human tonsils. METHODS Tonsillar follicles were immunohistologically characterized to elicit a possible cellular source of IL-16 expression. RESULTS The mantle zone of immature a...
The morphology of the transition zone between the terminal plate of the basal body and the 9 + 2 region of the somatic (non-oral) cilium has been examined in Paramecium tetraurelia. Freeze-fracture and thin-section techniques disclosed both membrane specializations and various internal structural linkages. Freeze-fracture material revealed sets of particles interrupting the unit membrane. The m...
The structural integrity of the cervix in pregnancy is necessary for carrying a pregnancy until term, and the organization of human cervical tissue collagen likely plays an important role in the tissue's structural function. Collagen fibers in the cervical extracellular matrix exhibit preferential directionality, and this collagen network ultrastructure is hypothesized to reorient and remodel d...
tween Eurasia and Africa that result in a primary eastward-directed, low-velocity current flow along the mid-Cretaceous Eurasian, northern Tethys margin. This conclusion appears to be at odds with sedimentologic and paleontologic field evidence (2, 3) obtained from the Helvetic tectonic unit that is exposed in the northern Alps and represents the former northern Tethys margin in southern Europe...
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