scholarly journals MORPHOFUNCTIONAL CONDITION OF THE OVARIES AFTER HYSTERECTOMY

2014 ◽  
Vol 13 (1) ◽  
pp. 145-152
Author(s):  
A. S. Fateyeva ◽  
I. A. Petrov ◽  
O. A. Tikhonovskaya ◽  
S. V. Logvinov

Estrogen-deficient state evolving after the removal of the uterus and blood disorders and innervation. In the present analytical review of the literature discusses the features of the structure and function of the ovaries in patients undergoing hysterectomy. Presents comparative data on preservation or removal of the fallopian tubes during a hysterectomy.

1977 ◽  
Vol 34 (10) ◽  
pp. 1475-1480 ◽  
Author(s):  
M. A. Ali ◽  
R. A. Ryder ◽  
M. Anctil

A review of the literature indicated contrasts in retinal structure and function between perches (Perca spp.) and pikeperches (Stizostedion spp.). Foremost among these were differences in size and distribution of rods, size and shape of cones, extent of retinomotor responses, possession or lack of reflecting material, and relative concentrations of melanin. The perches are primarily active by daylight, whereas the pikeperches are most active during twilight or at night. The coincidental occupancy of shoal areas by yellow perch (Perca flavescens) and walleye (Stizostedion vitreum vitreum) at twilight is related to decreasing visual acuity of the former and the approach of optimum visual performance in the latter species. On this basis the two species have a classic predator–prey relationship. Key words: histology, light, Perca sp., photopic vision, predation, retina, Stizostedion vitreum vitreum, symbiosis, tapetum lucidum


2020 ◽  
Vol 47 (4) ◽  
Author(s):  
N. Ya. Dotsenko ◽  
L. V. Gerasimenko ◽  
S. S. Boev ◽  
I. A. Shekhunova ◽  
A. V. Molodan ◽  
...  

Abstract The article presents a review of the literature on the role of myocardial fibrosis in the development of myocardial remodeling in patients with arterial hypertension. Information about the state of the structure and function of the extracellular matrix in health and disease is generalized. The characteristics of myocardial fibrosis biomarkers detection in the circulating blood are reflected. Keywords: arterial hypertension, myocardial fibrosis, extracellular matrix, collagen, biomarkers.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Leopoldo Spadea ◽  
Serena Salvatore ◽  
Enzo Maria Vingolo

Corneal sensitivity has recently received much attention given the crucial role the corneal nerves play in maintaining normal corneal structure and function. An increased understanding of the corneal sensitivity and dry eye disease in keratoconus, including alterations of the conjunctival cells, may help explain the pathogenesis of this disorder. There is histological evidence of the involvement of corneal nerves in the pathology of keratoconus and it has been suggested that this plays a role in the pathophysiological features and progression of the disease. In this review, the impaired corneal sensitivity found on keratoconus and corneal sensitivity changes after cross-linking performed in patients with keratoconus are reported.


2021 ◽  
pp. 250-254
Author(s):  
Dany k. Aouad ◽  
Nabil Dib ◽  
Chady Kharrat ◽  
George El Rassi

Avulsion fracture of the brachioradialis muscle origin at the proximal two-thirds of the lateral supraepicondylar ridge of the humerus is an extremely rare fracture with only 4 reported cases in the literature so far. In this article, we describe the case of a 50-year-old male patient who had sustained a closed fracture of the latter after falling from a height of 1.5 m on a flexed elbow and pronated hand. The patient was managed with immobilization of the elbow and wrist with a posterior splint in neutral position for 3 weeks, followed by wrist and elbow therapeutic mobilization sessions for 3 months. At the final follow-up, the patient had painless active and passive full range of motion of the elbow along with good flexion strength. The unique mechanism by which this avulsion fracture occurred is explained on the basis of the mode of injury, position of the limb, and structure and function of the brachioradialis muscle.


2015 ◽  
Vol 129 (8) ◽  
pp. 732-739 ◽  
Author(s):  
J C R Wormald ◽  
J M Fishman ◽  
S Juniat ◽  
N Tolley ◽  
M A Birchall

AbstractBackground:Tissue engineering using biocompatible scaffolds, with or without cells, can permit surgeons to restore structure and function following tissue resection or in cases of congenital abnormality. Tracheal regeneration has emerged as a spearhead application of these technologies, whilst regenerative therapies are now being developed to treat most other diseases within otolaryngology.Methods and results:A systematic review of the literature was performed using Ovid Medline and Ovid Embase, from database inception to 15 November 2014. A total of 561 papers matched the search criteria, with 76 fulfilling inclusion criteria. Articles were predominantly pre-clinical animal studies, reflecting the current status of research in this field. Several key human research articles were identified and discussed.Conclusion:The main issues facing research in regenerative surgery are translation of animal model work into human models, increasing stem cell availability so it can be used to further research, and development of better facilities to enable implementation of these advances.


Author(s):  
Peter Sterling

The synaptic connections in cat retina that link photoreceptors to ganglion cells have been analyzed quantitatively. Our approach has been to prepare serial, ultrathin sections and photograph en montage at low magnification (˜2000X) in the electron microscope. Six series, 100-300 sections long, have been prepared over the last decade. They derive from different cats but always from the same region of retina, about one degree from the center of the visual axis. The material has been analyzed by reconstructing adjacent neurons in each array and then identifying systematically the synaptic connections between arrays. Most reconstructions were done manually by tracing the outlines of processes in successive sections onto acetate sheets aligned on a cartoonist's jig. The tracings were then digitized, stacked by computer, and printed with the hidden lines removed. The results have provided rather than the usual one-dimensional account of pathways, a three-dimensional account of circuits. From this has emerged insight into the functional architecture.


Author(s):  
K.E. Krizan ◽  
J.E. Laffoon ◽  
M.J. Buckley

With increase use of tissue-integrated prostheses in recent years it is a goal to understand what is happening at the interface between haversion bone and bulk metal. This study uses electron microscopy (EM) techniques to establish parameters for osseointegration (structure and function between bone and nonload-carrying implants) in an animal model. In the past the interface has been evaluated extensively with light microscopy methods. Today researchers are using the EM for ultrastructural studies of the bone tissue and implant responses to an in vivo environment. Under general anesthesia nine adult mongrel dogs received three Brånemark (Nobelpharma) 3.75 × 7 mm titanium implants surgical placed in their left zygomatic arch. After a one year healing period the animals were injected with a routine bone marker (oxytetracycline), euthanized and perfused via aortic cannulation with 3% glutaraldehyde in 0.1M cacodylate buffer pH 7.2. Implants were retrieved en bloc, harvest radiographs made (Fig. 1), and routinely embedded in plastic. Tissue and implants were cut into 300 micron thick wafers, longitudinally to the implant with an Isomet saw and diamond wafering blade [Beuhler] until the center of the implant was reached.


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