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Introduction: Because tetraploid embryo is used as a base for growth and development of transgenic cells, one of the most important stages in animal biotechnology is to produce tetraploidy by electrofused 2-cell embryo. The aim of this study was to determine the effect of fusion duration on developmental rate of tetraploid embryos.
Materials and Methods: In this experimental study some of the bovine 2-cell embryos were obtained from in vitro matured and fertilized cumulus oocyte complexes 33-35 hr post fertilization as an unexposed control group (UCG). The remaining 2-cell embryos were exposed to 0.75 kilovolt per centimeter for 80 microsecond, and were transferred to SOF1 medium. Subsequently those embryos fused at 30 and 60 minute post electrofusion were categorized as fused groups (FG30 and FG60) and separated from unfused embryos as exposed control group (ECG). The developmental rate was compared between UCG, ECG, FG30, and FG60 groups and the relation between fusion duration and cleavage and developmental rate was surveyed. Results: The cleavage rate up to 8-cell stage in FG60 was increased significantly compared to FG30 (p<0.05) while the blastocyst rate has no significant difference between the two groups. The cleavage and developmental rate in UCG was significantly higher than ECG, FG60 and FG30. Chromosomal analysis showed that 76% of embryos were true tetraploid.
Conclusion: The fused embryos in FG60 had more ability to produce embryos up to 8-cell stage than FG30. The electrical pulse can decrease the cleavage and developmental ability of embryo

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Introduction: Hyperlipidemia is one of the main known risk factors for coronary artery disease. Regarding the undesirable consequences of hyperlipidemia and its long-term treatment, it is important to use drugs with lesser complications during the long period of treatment.
Materials and Methods: This study was a double-blind randomized clinical trail that carried out on 65 patients with hyperlipidemia. Patients were divided into two groups. Case groups took dill pearl, and control group took placebo pearl for one month. Serum lipids of both groups were measured before and one month after interference. Data was analysed with t-test and p<0.05 was considered significant.
Results: In this study , differences between mean level of cholesterol, triglyseride, HDL and LDL in case group before and after interference were statistically significant (P<0/05) but in control group only difference between HDL before and after interference was significant .
Conclusion: Regarding the result of the study dill pearl can be a useful drug for treatment of hyperlipidemia.

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Introduction: Type of anesthesia is important in the maternal and fetal well being. There are different informations about effect of general and spinal anesthesia on Apgar score, so in this study a comparision was made on Apgar scores of neonates following these two methods. Materials and Methods: This study is a clinical trial and 168 term pregnant women were selected from elective cesarean candidates and divided in to general and spinal anesthesia groups by randomized allocation method. Then Apgar scores in first, fifth and twentieth minutes were mesured in infants. Also maternal age, cause of cesarean, sex and duration of cesarean section time were all documented. Data was analyzed using T and Chi square tests. Results: Mean Apgar scores were 8.66±0.68, 9.8±0.42 and 9.970.15 at first, fifth and twentieth minutes in general anesthesia group, and 90.38, 9.880.32 and 10 at first and fifth and twentieth minutes in spinal group. The group differed significantly for first minute Apgar score (p<0.001) but there were no significant differences in fifth and twentieth minutes Apgar scores. Conclusion: First minute Apgar score of newborns of mothers under spinal anesthesia was more than those of mothers under general anesthesia but there was no difference between their five minute Apgar score.

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Introduction: Stirility is a problem throughout the world. Decreasing the growth and developmental rate of embryo and arresting in certain step of development like two cell block, could be the reason of infertility in some couples. Previous study show that arrest and retardation in embryo development can produced by low temperature exposure. We aimed to evaluate the effect of Ethanol on growth and development of mouse two-cell arrested embryo. Material and methods: The 4-6 week old female mice were coupled with male mice following superovulation and positive vaginal plaque mice were killed 48 hour after HCG injection by cervical dislocation method. Two cell embryo were collected in RPMI medium and divided and cultured (in M16 medium) in three groups. The 2nd and 3rd groups were exposed to 4°C for 24 hour in order to delay and arrest for cleavage and developmental rate. The 2nd group (2nd control) were incubated immediately, while the 3rd group (experiment) were exposed to % 0.1 Ethanole for 5 minutes and the 1st group (1st control) without any exposure to low temperature group were incubated . Results: The data analysis by one-way ANOWA show that the developmental rate of embryos exposed to low temperature (4°C) significantly decreased (P=0.001), retardation and arrest being produced. The mean of cleavage rate between groups were not significantly affected, but the mean percent of degenerated embryos between groups have significant differences (P=0.045). On the other hand the mean percent of morulla is significantly different between groups (P=0.005) similarly the mean percent of blastocyst and hatched blastocyst have significant differences between groups (P=0.014) (P=0.001) after 120 hr evaluation. Conclusion: Effect of %0.1 Ethyl-alchol on arrested two cell embryos can significantly increase the mean percent of morulla and development up to blastocyst and hatching blastocyst stage related to control group, without any significant effect on cleavage rate

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Background: Albizzia lebbeck is used for the treatment of diarrhea and dysentery. In this study the efficacy of hydro-ethanolic extract of this plant on enteric gram-negative and aerobic gram-positive bacillis was determined. Materials and Methods: In this experimental-clinical trial, cold maceration method by ethanol was used for extraction of Albizzia lebbeck fruit, seed, flower and leaves. Then its polyphenolic components were separated by ethyl acetate. After concentrating the different extracts through disk diffusion and tube dilution, the effect of minimal inhibitory concentration (MIC) and minimal bacteriocidal concentration (MBC) of their antibacterial component on shigella dysenteriae, proteus mirabilis, escherchia coli, bacillus cereus and bacillus anthracis were evaluated. Also, the antibacterial effects of Albizzia lebbeck extracts together and in combination with some antibiotics, were compared through variance analysis. Results: Different extracts of Albizzia lebbeck just had similar and positive effects on shigella dysenteriae, bacillus cereus, and bacillus anthracis. However, the hydro-ethanolic fruit extract was more effective than the falavnoid fruit, flower and leave extracts. MIC and MBC results for antibacterial material on the three aforementioned bacterias were 0.125 and 0.25 gram/ml, respectively while the effects of the polyphenolic components of this plant's fruit were similar to its hydro-ethanolic extracts. Conclusion: Through the identification of different components of Albizzia lebbeck and the attainment of new formulations of these components, the grounds will be provided for its application on treatment of patients with inflammatory diseases and asthma, and on improvement of their immune system.

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Background: Due to concerns over the negative impacts of PCB compounds on environment and their persistence, their production, use, and import has been banned in some countries. More recently, the Chemical Treaty on Persistent Organic Pollutants (POPs) has listed PCBs among priority chemicals for eventual elimination by 2025. The aim of this study was to determine the effect of solvents on the photodegradation of askarel oils using photolysis for reducing their hazards. Materials and Methods: The photochemical reactor, used in this experimental trial, was based on photolysis through UV/ H2O2 with a 500 ml beaker and low-pressure mercury lamp with a wavelength of 254 nm. The lamp was immersed in the beaker. The temperature and PH of the samples were constantly monitored. The experiments were repeated three times. Askarel oils were analyzed by GC/ECD. Results: The means of degradation of total PCBs due to the use of lamp for ethanol solvent and isooctane were 88% and 77%, respectively. The mean degradation of total PCBs in terms of the applied solvent ratio to the oil transformer for 1:1, 2:1, and 3:1 values for ethanol and isooctane were 55%, 85%, and 88%, and 40%, 77%, and 78%, respectively. Conclusion: Photolysis of PCB compounds in the presence of ethanol solvents, isoocatnes with strong oxidants such as H2O2, indicated their degradation or reduction in oil transformers with lower energy, and no yield of toxic byproducts. There was a significant difference in the employment of ethanol solvent and isooctane in degradation of askarel oil.

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Background: Pentoxifylline is a xantin derivative that causes deduction of blood viscosity, improves peripheral blood current and increases tissues oxygenization. In this study, considering special properties of this drug and inspite of undefined mechanism of its effect, the effect of pentoxifylline on skin biomechanical indices in acute phase of skin wound healing in rat is evaluated.

Materials and Methods: In this experimental study 14 adult Wistar rat were divided in two groups of experimental (n=7) receiving 100mg/kg twice a day and control (n=7) receiving distilled water intraperitoneal. Incisional wounds, 20mm length in identical pattern were created on back skin of rats. On day 15 skin strips containing incision were excised and used to evaluate biomechanical indices, work up to maximum force-Nm and Tensile strength= Rm-N/mm2. Results were analyzed by Spss soft ware and K-S, Levens and student T-Test.

Results: According to biomechanical test findings, pentoxifylline administration causes improvement in biomechanical indices of skin after 15 days of drug administration. Discrepancy between skin biomechanical indices of experimental and control subgroups was significant (p<0.05).

Conclusion: Pentoxifylline caused improvement in skin biomechanical indices and accelerated skin wound healing in experimentals.

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Background: One of the side effects of chemotherapy agents is gonadal suppression leading to infertility. The present study examined the feasibility of using a gonadotropin releasing hormone agonist (GnRH-A) in the prevention of busulfan induced azoospermia in prepubertal mice.

Materials and Methods: In this case and control research, Leuprolide (3.8 mg/kg) was given to prepubertal male mice 2 weeks after or prior to busulfan (40 mg/kg) administration. The animals received one or two doses of leuprolide after busulfan administration with 4 weeks apart. Six weeks after the last leuprolide treatment, the sperm parameters were analyzed icluded sperm count and motility according to the World Health Organization criteria.

Results: At the time of scarifies, testicular weight were increased in animals receiving leuprolide. In animals receiving leuprolide pretreatment, the percentage of progressive and immotile sperm was significantly (p&le0.05) increased and decreased respectively. But the percentage of non progressive sperm did not change. The sperm motility in busulfan treated animals with post treatment didn't change. The sperm count also increased in pretreatment animals but it was not significant (p&ge0.05).

Conclusion: The present study demonstrates that leuprolide pretreatment resulted in improvement in sperm motility in prepubertal male mice.

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Background: It is expected that affected people with diabetes will increase to 439 million in 2030, 15% of them are affected with chronic leg ulcer disease. Increasing number of researches implicate the positive influence of pentoxifylline (PTX) on the skin wound healing. Pentoxifylline is a xantin derivative that modifies or inhibits inflammatory factors, reduces blood viscosity, improves peripheral blood currency and increases oxygenation of tissues the In this study the effect of Pentoxifylline (PTX) on skin biomechanical indices in acute phase of skin wound healing in diabetic rat is in considerable interest.

Materials and Methods: It is an experimental- interventional study in which fourteen adult male wistar rats were divided into experimental group (n=7), receiving pentoxifyllineintraperitoneally and control group (n=7) receiving distilled water (DW). Diabeteswas induced by intraperitoneal administration of streptozotocin in both groups then full thickness incisional wound (20mm length) in identical pattern was made on the dorsum of rats. After 15 days a band of skin (4×60mm) containing wound was extracted and used to evaluate skin biomechanical indexes (work up to maximum force-Nm and Tensile strength= Rm-N/mm2). Results were analysed by SPSS software version 19 and K-S, Levens Test and Student SampleT-Test were used.

Results: Pentoxifylline administration improved skin biomechanical indices after 15 days after skin incisional wound. Differences between experimental and control’s indices were significant (p<0.05).

Conclusion: Pentoxifylline accelerated wound healing and improved tensile strength of skin in diabetic rats of experimental group.