Temporospatial dynamics of the morphogenesis of the rabbit retina from prenatal to postnatal life: Light and electron microscopic study.

The retina consists of various cell types arranged in eight cell layers and two membranes that originate from the neuroectodermal cells. In this study, the timing of differentiation and distribution of the cellular components and the layers of the rabbit retina are investigated using light and electron microscopy and immunohistochemical techniques. There were 32 rabbit embryos and 12 rabbits used.

Morphogenetic events influencing corneal maturation, development, and transparency: Light and electron microscopic study.

The development of the cornea is a fascinating process. Its dual origin involves the differentiation of surface ectoderm cells and the migration of mesenchymal cells of neural crest origin. This research aimed to demonstrate the morphogenesis of the rabbit cornea from fetal to postnatal life using light- and electron microscopy, and immunohistochemical analysis.

Evaluation of the outcome of a proposed more physiological bypass surgery technique in morbid obesity: Long term 3 years follows up.

Background: Obesity is a chronic condition that affects millions globally; consequently, bariatric surgery is the key to this serious issue. Bariatric procedures are rapidly expanding in number and methods to address the recognized problems. So, it would make a sense for surgeons and patients if there is a more physiological bypass surgery technique in Morbid obesity.

Role of pH in Regulating Cancer Pyrimidine Synthesis.

Replication is a fundamental aspect of cancer, and replication is about reproducing all the elements and structures that form a cell. Among them are DNA, RNA, enzymes, and coenzymes. All the DNA is doubled during each S (synthesis) cell cycle phase.

Of mitochondrion and COVID-19.

COVID-19, a pandemic disease caused by a viral infection, is associated with a high mortality rate. Most of the signs and symptoms, e.g.

The Possible Role of in Gastric Cancer and Its Management.

(HP) is a facultative anaerobic bacterium. HP is a normal flora having immuno-modulating properties. This bacterium is an example of a microorganism inducing gastric cancer.

Seasonal changes in the intertubular tissue of the camel testis (Camelus dromedarius).

The morphology and morphometry of camel testicular intertubular tissue are reported for different seasons of the year. The intertubular tissue occupies a comparatively large portion of the camel testis ranging from about 24% in autumn to about 39% in spring. The volume percentages of the different intertubular tissue constituents, namely Leydig cells, blood vessels, lymph vessels and various connective tissue components, also display clear seasonal changes.

Effect of the degree of effort on exercise echocardiography for the detection of restenosis after coronary artery angioplasty.

To determine whether the accuracy of exercise echocardiography is affected by the degree of effort during exercise, we examined 101 patients who had 6 months earlier undergone successful coronary artery angioplasty, with resting and immediate postexercise echocardiography and same-day coronary angiography. A positive exercise echocardiographic response was defined as the development of a new or worsening wall motion abnormality postexercise, compared with resting wall motion. Significant coronary disease (greater than 50% diameter stenosis) was present in 48 patients, 38 of whom had single-vessel disease and 10 of whom had two-vessel disease.

Some morphological studies on the corpus striatum of the cerebrum of the goat.

The corpus striatum of the cerebral hemisphere is carrying out automatic reflexes responsible for feeding, defence, and maintainance of pusture. Our studies were applied on 60 heads of goats from both sexes which were collected from Damanhour sloughter house and injected by 10% formalin through the common carotid artery and put in 10% formalin solution for 1 week. The corpus striatum consists of great basal nuclei and capsules, caudate nucleus, lentiform nucleus, claustrum, capsula interna, capsula externa, and amygdaloidea.

Anatomical studies on the cerebellum of the donkey of Egypt.

The cerebellar mass forms about 34.4 cm3. The ratio to the brain mass is 1:9.

Histochemical and topographical studies on the somatotropic and lactotropic cells in ewe during reproductive cycle.

A histomorphological examination has been made on the pars distalis of the pituitaries from twelve, normal healthy sexually mature balady ewes which were divided into three groups, according to the different phases of reproduction (resting, follicular and luteal phase). The histological features of STH- and LTH-cells during resting has been used to establish a standard with which the subsequent changes during the follicular and luteal periods were compared. Using PAS/OG, AB/OG and PFA/AB/PAS/OG stains, the STH- and LTH-cells were differentiated and identified from the other forms of the pars distalis cells.

Cyclic morphological variations in the gonadotropic cells in the pituitary gland of ewe.

A histomorphological examination has been made in the pars distalis of the pituitaries of twelve normal healthy sexually mature ewes which were classified into three groups (resting, follicular and luteal phase) according to the different phases of reproduction. The histological features of FSH- and LH-cells during anestrus has been used to establish a standard with which the subsequent changes during the follicular and luteal phases were compared. Using PAS/OG, AB/OG and PFA/AB/PAS/OG stains, the FSH- and LH-cells were differentiated and identified from the other forms of the pars distalis cells.

Functional morphology of thyrotropic and corticotropic cells during reproductive cycle in ewe.

A histological examination has been carried on the pars distalis of the pituitaries of twelve, healthy sexually mature balady ewes which were classified into three groups Resting, follicular and luteal phases according to the different phases of reproduction. The histological features of the TSH- ACTH-cells during resting phase has been used to establish a standard with which the subsequent changes during the follicular and luteal phases were compared. Using PAS/OG, AB/OG and PFA/AB/PAS/OG stains the TSH- and ACTH-cells were differentiated and identified from the other forms of the pars distalis cells.