Aim:This study aimed to investigate the impact of rabbit serum on skin wound healing with the help of histological examination.Materials and Methods:A total of ten indigenous rabbits were used in this study. The animals were divided into two groups: control and serum- treated. The histological assessment was done with a paraffin embedding technique and the histological sections were stained with H&E stain.Results:Severe infiltration of polymorphonuclear leukocytes with severe fibrin deposits were seen in serum treated group at 2 days post-injury; at 7 days post-injury the changes revealed moderate fibroplasia, fibrin deposit and severe infiltration of both mononuclear and polymorphonuclear leukocytes; at 14 days post-injury, there were marked epithelization and dermal deposition of collagen fibers; and at 21 days post-injury, the epidermis completed epithelization and the dermis showed neither fibroplasia nor infiltration of mononuclear and polymorphonuclear leukocytes.Conclusion:The results indicated that rabbit’s serum can prevent wound infection, accelerate epithelialization and cutaneous regeneration with less granulation.
Twelve samples of mammary glands (6 immature and 6 lactating ewes) were used for this study. Specimens of glands were immediately dissected and fixed in 10% formalin sol. The specimens were processed according to paraffin technique, sectioned at 5-6µm and stained by hematoxylin and eosin, Masson's Trichrom stains. In both immature and lactating ewes the mammary glands were covered by skin. In immature ewes the mammary quarter was composed of few mammary lobes that separated by very thick inter lobar adipose tissue. The lactating quarter was composed of huge mammary lobes and lobules without adipose tissue. In immature the lobe was consisted of few small lobules that composed of few of mammary alveoli while the lactating lobes had large sizes lobules and each had large alveoli which lined by tall cuboidal cells and supported by fibrous tissue and myo epithelial cells. In both immature and lactating ewes, the gland and teat cisternae were showed many of mucosal folds which lined by pseudo stratified columnar epithelium and supported by fibrous connective tissue. The teat cisterna of both immature and lactating was composed three layers; mucosal cisterna, fibro muscular layer and skin. The teat canal was lined by pseudo stratified squamous epithelium and the sub epithelial connective tissue showed well developed venous sinus and fibro muscular. Statistical analysis was revealed significant differences between the values of all parameters of immature and lactating ewes. Apparent surface areas of the lobe in immature and lactating were 122143.063±23.21 µm2 & 992541.188±33.81 µm2 respectively. Surface areas of lobule in immature and lactating were 1042.938±21.02 µm2 & 91565.977±25.60 µm2 respectively. Surface areas of alveoli in immature and lactating were 994.238±11.39 µm2 & 4584.270±19.26 µm2 respectively. Epithelial heights of alveoli in immature and lactating were 10.290±1.01 µm & 23.012±2.81 µm respectively. Thickness of inter lobar tissue in immature and lactating ewes 677.393±23.67 µm and 361.401±10.86 µm respectively. Thickness of inter lobular connective tissue in immature and lactating were 112.969±±11.48 µm and 90.281±9.81 µm respectively.
This study aimed to investigate the impacts of the Trigonella foenum-graecum (T. foenum-graecum) seeds on the female gonad. A total of twenty local rabbits were used in this study; were divided into four groups (5 each): first group (G1) was considered as the control group. The second group (G2), third group (G3) and fourth group (G4) were fed daily1.5%, 3%, and 4.5% of T. foenum-graecum seeds respectively for 60 days (twice daily). At the end of the experiment, the animals were euthanized by diethyl ether (C2H52O). Then the abdomen was incised, and the samples of ovaries were collected and fixed by 10% neutral buffered formalin. The histological assessment was done with a paraffin embedding technique and the histological sections were stained with Hematoxylin and Eosin stain. The result showed that the numbers of primary and secondary follicles were significantly P< 0.05 decreased in G3and G4 compared with the control (G1) and G2. The numbers of Graafian follicles were significantly P<0.05 decreased G4 compared with other groups. The diameters of the primary, secondary, and Graafian follicles were significantly lower than the other groups. The thickness of the granulosa cell layer in G3and G4 were significantly lower than the other groups. The histological figures declared that the ovary of G2 was similar to that in G1. The histological sections of G3 and G4 were revealed marked cortical and medullary vascular congestion and focal hemorrhage; there were also marked follicular degeneration and cystic necrosis. The study concluded that the low concentration of T. foenum-graecum (fenugreek) seeds do not have any positive effect in terms of ovarian stimulation
Objective: Certain advantages of donkeys are still not listed as for other equine species. Moreover, donkeys lack comprehensive scientific studies. The present study examines the histological architecture and histochemical characteristics of the esophagus in the Iraqi local breed donkey (Equus asinus). Materials and Methods: Eight esophagus samples were collected from a local breed donkey. Tissue specimens (~1 cm³) were collected from the cervical, thoracic, and abdominal regions of the esoph¬agus and processed via routine histological technique. The tissue sections were stained with hema¬toxylin and eosin, Massons Trichrome, and combined Alcian blue (pH 2.5) plus PAS (AB-PAS). Results: The esophagus of the local breed donkey had folded mucosa wrapped by thin non-ke¬ratinized stratified squamous epithelium. The heights of epithelia of the cervical and thoracic regions of the esophagus were significantly higher than that of the abdominal regions. The lamina propria consisted of dense fibrous tissue that appeared thickest in the thoracic and abdominal regions of the esophagus. The muscularis mucosa disappears at the cervical region, while the thoracic and abdominal regions of the esophagus contain thick, scattered, interrupted bundles of smooth muscle fibers. Tunica submucosa was very thick at the thoracic and abdominal regions of the esophagus, composed of loose connective tissue filled with compound tubular mucose¬rous esophageal glands. Using a combined AB-PAS stain, mucous alveoli within the esophageal glands indicated strong acidic mucopolysaccharide. Tunica muscularis of the cervical and thoracic regions was built up by striated muscle fibers and turned into smooth type at the abdominal region of the esophagus. Conclusion: The esophagus of the local breed donkey shows considerable histological similarities with the other mammals that make this species reliable as an experimental model of digestive tissue.
The current study was aimed to investigate the development of testis during prehatching periods to diverse the components of the testis in duck embryo from embryonic day 5 to 19 consequently; fifteen males' of mallard ducks embryos have been used. The results showed that development of testis has divided into two periods: the first one was the period of undifferentiated gonad (genital ridge) while the second period was the development into a testis which showed various stages. The undifferentiated stage has revealed of development a small protruded thickening of germinal epithelium and primordial germ cells on the ventromedial surface of the mesonephros and dorsal mesentery.The development periods has showed three stages: development of rete cords, sexual cords,primary somniferous tubules and Sertoli progenitor cells at the 8-10 th day embryos. During 14 th day old embryo was revealed of development immature somniferous tubule, tunica albuginea and testicular capsule. While the period of 19 th day embryo showed that development of interstitial cells and thin septa from tunica albuginea, .in addition to marked division of spermatogonia cells. Size of left testis was larger than the right one also the epithelial layer of left gonad is thicker than that covering the right gonad.
a Surgery and obstetric department/college of veterinary medicine/university of Baghdad/Iraq. b PhD student /surgery and obstetric department/college of veterinary medicine /university of Baghdad/Iraq. c Anatomy ,histology ,and embryology department/college of veterinary medicine /university of Baghdad/Iraq. Abstract:The aim of the present study was to employ the xeno-bovine bony implantation (XBBI) which prepared from ulna of calves as space filler in the induced femoral defect in rabbit s. Fifteen adult local breed rabbits were used. Under general anesthesia with highly aseptic technique, about 1cm of femoral bone diaphysis was removed and the empty space was replaced by the same size and diameter of XBBI and fixed internally by intramedulary pin ( FGSR), the clinical observation revealed that the animals can use the limb normally in walking ,running and bear the weight at the end of the 4 th week post operation (p. o.) with no complication or body rejection, while the radiological finding at the 4 th months p. o. shows that the XBBI stable and well fixed with profuse external callus formation , with marked increase density of the sclerotic area at the junction of the end fragment and the bony implantation .The conclusion the xeno-bovine bony implantation (XBBI) which prepared from the ulna of calves can be used successfully as space filler ,support body weight and promote bone healing of the induced femoral bones defect in rabbits .
Histological changes which occurred in the cervix of the ovariectomized rabbits without hormone and with hormones injection were investigated. A total of 45 female rabbits were divided into three groups, the first group was used as a control, while, the second and third groups were used for experiments. In control group the tunica mucosa thrown into branched folds which lined with simple cuboidal to columnar epithelium, and a lamina propria was well vascular dense irregular collagenous connective tissue and a tunica muscularis displayed double layers of smooth muscle fibers. In ovariectomized group without hormones injection, the tunica mucosa showed delicate mucosal folds which lined with low simple cuboidal epithelium and the tunica muscularis was very thin layer, and a significant decreased in the height and thickness of mucosal folds, thickness of lamina propria and tunica muscularis. In ovariectomized groups with hormones injection, the cervix was very thick walled organ and their mucosal folds were the tallest, pyramidal shaped and their epithelium turned into simple columnar epithelium. The thickness of tunica muscularis was increased due to their two layers those intermingled with much of collagen bundles. Statistically, a significant (P<0.05) increased in the values of all parameters. The present study concluded that that cervix in doe has a narrower lumen with huge collagenous connective tissue content that increased in response to steroid hormones, in addition to hyperplasia and hypertrophy, consequently for keeping intrauterine during the preimplantation stage and pregnancy.
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