Showing 11 results for Khaki
Ghasem Mosayebi , Khaki Mohsen, Kamran Moshfeghi ,
Volume 1, Issue 4 (Autumn 1997)
Abstract
Seral of 121 vasectomized and 45 samples of normal individuals examined by tray agglutination test for Anti-Spem Antibodies(ASA). ASA were found in more than 83% of vasectomized and 6.5% of control subjects. The Presence of ASA in two groups has been significantly different. (P<0.0001). Enhancement of ASA titer showed a positive correlation with the post time after vasectomy.
Mohsen Khaki,
Volume 3, Issue 1 (Spring 2000)
Abstract
Various gastrointestinal viruses among infected and sensitive people are transmitted through fecal-oral. In some cases according to the type of virus and host conditions, they can cause gastrointestinal disease such as diarrhea and other infections. In some cases it may cause inflammation in tissues and organs post gastrointestinal infections. In this study feces or rectal swab samples were cultures on Hela cell culture media using specific antisera, and the cultured viruses were identified. The results of this study were showed that neutralization is a very available method in isolation and diagnosis of virus. This method can also be used for identification and isolation of viruses in various clinical samples in the pathological, epidemiological and vaccination studies.
Mohsen Khaki, Mostafa Ghavamian,
Volume 8, Issue 4 (12-2005)
Abstract
Introduction: Hepatitis B is a disseminated liver inflammation from HBV, that causes diseases and a large number of deaths. Regarding the fact that some of the vaccinated people are non responder (NR), evaluation of immunity in vaccinated ones and identification of NR especially in high risk group is necessary.
Materials and Methods: In this descriptive study blood samples of all medical students of Borujerd Azad university at the age of 18-25 and vaccinated personnel of Borujerd Shariaty hospital were tested for Anti.HBS-Ab level by ELISA method with Radim kit (cat.KHB31). Results were analyzed according to the number of received vaccines, the duration of vaccination and demographic criteria using descriptive statistics.
Results: About 90% of samples had protective immunity and 10% were NR. 8% of immune group had more than 1000, 17.2 % between 500-1000 and 74.8 % between 10-500 miu/ml of Ab titer. About 75% of immune samples had received two vaccines. In NR group 53% had received three vaccines and 47% had two. 4% of samples were immune with the duration less than one month after vaccination which 85 % of them had two vaccines.
Conclusion: Herd immunity was 90% which is accordant to most studies. In some studies with different results the effective criteria were not differentiated. So regarding these differences, vaccinated people are recommended to evaluate their HBS.Ab level.
Hossein Sarmadian, Nader Zarinfar, Ali Fani, Fateme Marjan Mousavi, Farshideh Didgar, Mohsen Khaki, Azadeh Mohammad Bagheri, Maryam Karimi,
Volume 11, Issue 3 (9-2008)
Abstract
Background: Metronidazole has antibacterial and antiparasitic action. Therefore it can use for treatment inflammatory diseases as Crohn. The effect of metronidazole on human’s blood lipids to reducing levels of LDL and VLDL and increasing level of HDL is under investigation. Target of this research is consideration effect of metronidazole on hyperlipidemia case of death such as coronary artry disrase. Methods and Materials: This study is a triple blind clinical trial was done on 100 voluntaries between 25-65 years old. with hyperlipidemia. Samples divided in two equal groups. The first group received metronidazol, 500mg, BID, for 10 days, and control group received placebo with the same dose. Lipids of serum were measured before and after using drugs, then data analyzed by SPSS software. Results: In metronidazol group amount of total cholesterol, LDL and Triglyceride were significantly less than placebo group. HDL’s amount in metronidazole group was significantly more than placebo group. Conclusion: Significant effect of metronidazole on reducing harmful blood lipids and increasing useful blood lipids. It can be suggested a probable candidate in treatment of hyperlipidemia. Maybe it can use with this application. Although it needs to more study by meta analysis to validate this effect.
Vahid Sheibani, Mohammad Ali Afarinesh Khaki, Zahra Hajizadeh, Mandana Jafari, Razeieh Arabnezhad, Ali Shamsizadeh,
Volume 11, Issue 3 (9-2008)
Abstract
Background: Pain is an unpleasant feeling which humans experience. It is a warning sign of the damaged tissue. Due to the awful sense of pain, scientists always attempt to relieve it. Retinoic acid (RT), an active metabolite of natural vitamin A has important roles in modulation of the inflammatory responses. The aim of the present study was to analyze the pain threshold of rats which had microinjections of RT, applying acute and chronic models. Methods and Materials: In this study, the tail flick and formalin tests were used to determine pain threshold. In each test, the acute and chronic pain thresholds of 252 Wistar male rats (275 ± 25 gr) were assayed. The druge were injected in the acute model one-dose30 minutes before behavioral testing and in chronic model two-dose for one or two-weeks. The rats of both models divided randomly into six groups (n=7). In four treatment groups retinoic acid (RT) intra cerebro ventricular (i.C.V) were injected as dosagc of 0.5, 3 and 6 (µg/kg) micrograms per kilogram. In control group, was microinjected by ACSF. In vehicle group injected RT solvent (DMSO+ Distil water). Results: The resuits Showed acute injection of RT did not change pain thresholds in the tail-flick methd, but the chronic administration of RT (0.5, 1, 3, 6 µg/kg) reduced tail-flick latencies of the rats (p<0.05) in compare to DMSO group. The threshold of pain in the first phase of formalin test was reduced after injection of 3µg/kg of RT for two weeks. Conclusion: It was concluded that chronic i.c.v. injections of RT can induce significant hyperalgesia in rat.
Mohsen Khaki, Ali Ghazavi, Keyvan Ghasami, Mohamad Rafei, Mohammad Payani, Ghasem Mosayebi,
Volume 12, Issue 2 (9-2009)
Abstract
Background: Multiple sclerosis (MS) is a auto-immune disease of central nervous system. The etiology of MS is unknown, but environmental factors such as viruses are involved in the development of MS. In this study, MS patients were assessed for antibodie titers against Human Herpes virus-6 (HHV-6) in Markazi Province. Methods and Materials: In this case-control study, 31 new cases of MS patients and 60 healthy subjects were selected with similar demographic criteria such as sex, age and location. Antibodies titer (IgM and IgG) against HHV-6 were examined by ELISA and Immunofluorescence methods. Data were analyzed using Logistic regression and Odds ratio. Results: Data indicates that 74.2% of case group and 34.2% of control group were identified as positive for IgM against HHV-6. The difference between the two groups in terms of IgM against HHV-6 was statistically significant (p=0.001). Incidence of IgM positivity against HHV-6 was increased more than five times in MS patients compared to control group. Also there was a statistically significant difference between case and control groups in IgG titer (p=0.019). Conclusion: Acute infection of HHV-6 is a risk factor for MS.
Azadeh Agahi, Gholamali Hamidi, Mahmoud Salami, Azam Alinaghipour, Reza Daneshvar Kakhaki, Masoud Soheili,
Volume 20, Issue 12 (3-2018)
Abstract
Abstract
Background: Alzheimer’s disease (AD) is a most common neurodegenerative disorder. The aim of this study was to investigate the effect of probiotic on cognitive function in patients with Alzheimer disease.
Materials and Methods: This clinical trial was conducted among 48 AD patients. The patients were randomly divided into two groups (n=23 in control group and n=25 in probiotic group) treating with capsules 500mg containing maltodextrine (control group) and probiotic supplementation (probiotic group) for 12 weeks. Mini-mental state examination (MMSE) and TYM test score was recorded in all subjects before and after treatment.
Results: After 12 weeks intervention, compared with the control group, the probiotic treated, patients with mild degree of Alzheimer disease showed an improvement in the MMSE, TYM score
(p < 0.0001).
Conclusion: Our current study demonstrated that probiotic consumption for 12 weeks positively affects cognitive function in mild degree of AD.
Ali Ghazavi, Ali Ganji, Mohsen Khaki, Ghasem Mosayebi,
Volume 21, Issue 5 (10-2018)
Abstract
Background and Aim: There are two philosophies about the origin of the immune system, defense and homeostasis. In this article, the existential philosophy of the immune system was reviewed, in which the defense role is only part of its homeostasis functions.
Materials and Methods: The Medline was searched for terms such as “Homeostasis”، “Immunculus”، “Natural autoantibody” “Evaluation” and “Immune system”.
Findings: Hemostasis is the most important part of immune regulation and the existential philosophy of this system, so that its defensive role is only part of homeostasis functions. Natural antibodies play this role as immune reflection by showing qualitative and quantitative changes in the antigenic composition of the body. Therefore, the level of natural antibodies can also serve as a prognostic marker.
Conclusion: Although many improvements have been made in explaining the hemostatic role of the immune system, many studies have to be conducted to identify its particular aspects.
Mohsen Khaki, Hamid Abtahi, Ghasem Mosayebi,
Volume 22, Issue 6 (February & March 2020)
Abstract
Background and Aim: The most important problem in the production of recombinant proteins in prokaryotic cells is the disruption of the function of these proteins due to their altered natural structure. The aim of present study is to identify the best chemicals dialysis buffer additives in order to improve the protein structure of recombinant Vascular Endothelial Growth Factor (VEGF)
Methods & Materials: In this experimental study, different chemicals additives were selected using relevant software. After adding these additives to the recombinant VEGF dialysis buffer, their effect on the refolding of recombinant proteins and the differentiation of mesenchymal stem cells into endothelial cells was assessed by flow cytometry method.
Ethical Considerations: This study obtained its ethical approval from the Research Ethics Committee of Arak University of Medical Sciences (Code: ARAKMU. REC.1394.199).
Results: The results showed that the addition of arginine, cysteine and dithiothreitol (DTT) to dialysis buffer increases the differentiation of mesenchymal stem cells into endothelial cells. With the presence of sodium chloride (NaCl), cysteine, arginine and DTT in treated cells, the rate of specific Cluster Differentiation (CD) markers of endothelial cell (CD31/144) was at the highest level.
Conclusion: Adding cysteine, arginine, DTT and NaCl to the dialysis buffer of recombinant VEGF had the greatest effect on the mesenchymal cell differentiation into endothelial cells.
Ali Ganji, Ghasem Mosayebi, Mohsen Khaki, Ali Ghazavi,
Volume 23, Issue 1 (April & May 2020)
Abstract
Background and Aim: COVID-19, a viral respiratory illness. In this review, we discuss issues such as the genetic structure, pathogenic mechanism, clinical characteristics, diagnosis, treatment, and prevention of COVID-19 based on the latest findings.
Materials and Methods: The Medline was searched for terms such as “Coronavirus” ،“ COVID-19” and “Respiratory infection”.
Findings: In December 2019, the unprecedented outbreak of pneumonia with unknown etiology began in Wuhan, Hubei Province, China. The cause was a new coronavirus, named COVID-19 by the WHO. This virus has high transmissibility and affects the lower respiratory tract. Research into the mechanism and treatment of COVID-19 is under way, and new information is being provided every day, some of which are contradictory. COVID-19 is a serious and dangerous infectious disease and a significant threat to the health of the world's population, and should be prevented from spreading rapidly.
Conclusion: Because the exact mechanisms of the disease have not been fully elucidated and specific drug or vaccine have not yet been developed for it, control is mainly based on the interruption of the transmission cycle.
Atefeh Khaki, Maryam Baazm, Mohamad Bayat,
Volume 27, Issue 5 (12-2024)
Abstract
Introduction: Glyphosate is the most popular broad-spectrum herbicide globally due to the growing demand for glyphosate-resistant crops. Glyphosate exhibits harmful properties, including cytotoxicity, neurotoxicity, and reproductive toxicity. This study aimed to investigate the detrimental effects of glyphosate on ovarian histopathology in mice and the in vitro maturation (IVM) of oocytes following superovulation.
Methods: In this study, thirty-two female NMRI mice were randomly divided into the following groups: control, glyphosate, superovulation, and superovulation-glyphosate. Animals received glyphosate (0.5%) continuously through drinking water for three weeks. HMG and HCG were used to induce superovulation. Oocytes were collected from the ampulla, and the quantity and quality of oocytes were analyzed. Then, in vitro maturation (IVM) of oocytes was performed. At the end of the study, ovarian histopathology was analyzed.
Results: Compared to the control group, the glyphosate-treated group exhibited a significant decrease in secondary and Graafian follicles while demonstrating a concomitant increase in atretic follicles (P < 0.05). Additionally, the superovulation-glyphosate group showed fewer germinal vesicle breakdown (GVBD) and MII oocytes than the superovulation group. In the superovulation-glyphosate group, there was a notable reduction in GVBD and MII oocytes following in vitro maturation (IVM).
Conclusions: Glyphosate has the potential to damage ovarian tissue and adversely affect IVM and oogenesis.
