Showing 5 results for Barbarestani
M Karimfar , Smh Nuri , B Minaiy , M Barbarestani ,
Volume 56, Issue 2 (30 1998)
Abstract
To study the lead effect, we selected 14 females rats in which we had observed vaginal plague after mating, and divided them into a group of 8 female rats as the case group and 6 females as the control group. As drinking water the case group was given 0.13% lead acetate solution and the control group pure distilled water. Immediately after parturition the pups were killed and their livers removed. A small part of the liver was fixed in glutaraldehyde and osmium tetroxide in order to be studied with transmission electron microsope. The fixated parts were dehydrated and embed in Epon 812. using ultramicrotomoe, we prepared semithin seclions of the tissues, stained them with toludine blue, and studied them under light microscope. Further more we prepared thin sections of the tissue to be placed on grids coated with formvar. These sections were stained by uranyl acelate and lead citrate. Electron microscopic study was performed on them. Results: T.E.M. study showed the swelling and blebbing of nuclear envelop and endoplasmic reticulum and mithochondria of hepatocytes.
R Amirsadri , M Barbarestani , M Akbari , M Farzan ,
Volume 56, Issue 4 (1 1998)
Abstract
Variation of recurred branch of median nerve in relation to the median and flexor retinaculum are significant for both hand surgeons and specialists always. In this study, 64 cadaver hands (32 men) have been dissected. The median nerve was identified at the proximal edge of the flexor retinaculum, and in order to expose carpal tunnel the ligament was divided, and the above subjects were studied. The results are: 1) The relation of recurrent nerve to the flexor retinaculum was classified into 4 types: A) In (53.1%) of subjects, this branch arises from the median after the flexor retinaculum. B) In (31.3%) of subjects, it arises from the median in the carpal tunnel and the moves around the lower edge of flexor retinaculum and enters the thenar region. C) In (14.1%) of subjects, it arises from the median in the carpal tunnel and pierces the flexor retinaculum. D) In (1.56%) of subjects it arises, in the carpal tunnel and it divides into two subbranches here. One follows pattern A and the other pattern C. 2) In this step, the relation of the recurrent branch to the median nerve was studied. The results show that inspite of this image even though most often the recurrent branch arises from the lateral side of median, in (68.75%) of subjects it arises from it's anterior surface. The MC Nemar test reveals that there is no relation between manifestation of mentioned patterns with right or left hands.
Naraghy Ma, Ragerdy Kashani I, Barbarestani M, Abdolvahhabi A, Pasbakhsh P,
Volume 59, Issue 1 (7 2001)
Abstract
This study was conducted on 48 specimens of Rectus abdominis muscles for recognition and definition of passage and ramification of lower intercostal nerves. The main results of this study are as follows: 1- The seventh and eight intercostal nerves penetrated to posterior layer of the Rectus sheath while other intercostal nerves perforated to dorsal layer of internal oblique abdominis aponeurosis. 2- Distance between lateral border of the Rectus abdominis muscle till penetrate point for all nerves were 18±1 mm, but the subcostal nerve was 16±1 mm. 3- Each intercostal nerve was ramified in thickness of muscle and formed many branches that maximum of this was middle longitudinal region and minimum of that was lateral longitudinal region. In addition we did not observe the nerve anastomosis between intercostal nerves. 4- The lower primary branch of the intercostal nerve after piercing of anterior layer of the Rectus sheath was named anterior cutaneous branch and terminated to abdominal skin. 5- All of intercostal nerves at first was placed right angle to muscle fibers but immediately decrease its and was placed parallel to muscle fibers. 6- The entrance, passage and ramification of intercostal nerves in both male and female cadavers were similar.
Sheikh Rezaei A, Fakhr Tabatabaei Sa, Khoshnevisan A, Marzban H, Nikbakht M, Barbarestani M, Asadi F,
Volume 59, Issue 3 (8 2001)
Abstract
There are many studies about epidural fibrosis after surgical manipulation of the spine. We have studied formation of the post laminectomy epidural fibrosis after application of two materials (Silicone and Teflon) in this report. This expriment is on two groups of rats. Two separated laminectomies were done in each rat, one serving as control while in the other laminectomy spaces Silicone was used in group A and Teflon in group B. Laminectomy spaces were evaluated with gross dissection and histologic studies after 6 weeks. Silicone decreased intermuscular scar, deep scar, dural adhesion and collagen fiber density in epidural space. Teflon decreased dural adhesion and collagen fiber density but did not decrease intermuscular and deep scar formation in epidural space.
Bakhtiari M, Mahmoudi R, Sobhani A , Akbari M, Barbarestani M, Pasbakhsh P. , Sargolzaei Aval F, Hedayatpoor A,
Volume 64, Issue 9 (1 2006)
Abstract
Background: Freezing and thawing induce a number of insults to the sperm cells, such as low motility and low fertilization capability. For evaluation of hyaluronan (HA) supplementation on sperm characteristics, we investigated the effect of hyaluronan (HA) on mouse sperm before freezing and after thawing.
Methods: For this purpose we removed cauda epididimes from 24 male mice with aseptic method and freezed the semen in 1.8ml cryotubes with %18 raffinose and %3 skim milk cryoprotectant solution.We had 4 groups: group 1(fresh control) group 2(freeze control) group 3(supplemented 750 µg/ml HA to sperm before freezing) and group 4(supplemented 750 µg/ml HA to sperm after thawing). Fertility rate evaluated after routine IVF by counting two-cell stage embryos.
Results: HA supplementation (750µg/ml) after thawing improved fertilization capability parameters but supplementation before freezing had no effect on mentioned characteristic.
Conclusion: Acording to data of present study the hyaluronan supplemen- tation (750µg/ml) after thawing has the greatest effect on the fertility rate of sperms.
