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Search Results: 1 - 10 of 401302 matches for " Mohamadi M "
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Pulsatility Indexes of Fetal Middle Cerebral Artery and Umbilical Artery for Predicting Intrauterine Fetal Growth Retardation
M. Mohamadi Fard,H. Saberi
Iranian Journal of Radiology , 2008,
Abstract: Background/Objective: To evaluate the role of fetal cerebral and umbilical blood flow for predicting intrauterine fetal growth retardation (IUGR)."nPatients and Methods: Doppler ultrasonography was used to study pulsatility indexes (PI) of the fetal middle cerebral artery (MCA) and umbilical artery (UA) in 155 normal late pregnancies and 121 IUGR cases. "nResults: MCA PI were significantly lower in IUGR fetuses than our normal fetuses (P < 0.01). UA PI and UA PI/MCA PI ratio were higher in IUGR group than normal group (P < 0.01). The sensitivities of MCA PI, UA PI and UA PI/MCA PI ratio for predicting IUGR were 79%, 73% and 88.8%, respectively. The specificities of MCA PI, UA PI and UA PI/MCA PI ratio for predicting IUGR were 91.7%, 87% and 91%, respectively."nConclusions: Doppler ultrasonography for predicting IUGR was a practical and sensitive method.
Comparison of Different Animal Models in Estimation of Variance Components and Genetic Parameters of Body Weight of Mehraban Sheep
F GHafori,M Eskandari,H Mohamadi
Journal of Science and Technology of Agriculture and Natural Resources , 2009,
Abstract: Variance components and genetic parameters of body weight of Mehraban sheep were estimated by univariate and random regression models. This was done by using body weight records of 2746 Mehraban lambs related to flocks under supervision of the Agriculture Organization of the Hamadan province, collected between 1990 and 2005. In both methods, variance components estimates were obtained by restricted maximum likelihood (REML) using DFUNI and DXMRR programs, respectively, via DFREML 3.1 software package. Results showed that variance components obtained from RR models (except for residual variance) in some ages were higher than those obtained from univariate models. Direct heritability (h2) estimates from univariate and RR models were approximately equal to weaning age; but, overall, RR estimates were higher than those obtained from univariate analyses. Maternal heritability estimates (m2) from RR models were higher than univariate models’ estimates, and showed a different pattern of variation with age. Correlations between predicted breeding values from univariate and RR models for birth weight and weaning weight were 0.72 and 0.70, respectively. Results showed that estimates of variance components and genetic parameters by RR models were affected by data structure; and in case of the need for genetic parameters, especially those related to body weight late in lambs’ life, estimates of univariate analyses should be preferred.
Proteolytic antibodies in the sera of pregnant women: a case control study
Rahimzadeh jahromi M, Mirshahi M, Shamsipour F, Mohamadi M
Tehran University Medical Journal , 2008,
Abstract: "n Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Background: The induction of catalytic antibodies (abzymes) was first postulated by Pauling in 1948. Various catalytic antibodies have been detected recently in the sera of patients with several autoimmune pathologies such as systemic lupus erythematosus and rheumatoid arthritis. In addition, antibodies with DNase and RNase activity have been discovered in the milk and sera of healthy human mothers, which shows the physiologic role of these antibodies. In this study, we examined the proteolytic activity of antibodies in the sera of pregnant women. "n"nMethods: IgG antibody fractions were isolated from the sera of 30 healthy pregnant women in the first trimester of pregnancy and 10 control samples (men and nonpregnant women) by subsequent steps of chromatographic purification on Protein G sepharose and sephacryl S-300. All patients were in their first pregnancy and aged 25-35 years. The conditions for proteolytic activity, such as type of buffer, pH and temperature, were optimized. The proteolytic activity of these antibodies was demonstrated by in-gel assay with gelatin as the substrate. "n"nResults: Antibody treatments at the optimum temperature showed that some samples from pregnant women contain proteolytic abzymes, as demonstrated by in-gel assays. Western blot results confirmed that the proteolytic activity is an intrinsic property of the antibodies. "n"nConclusions: During pregnancy and immediately after delivery women very often experience autoimmune processes similar to those in patients with autoimmune disease. Because of their specific immune status, pregnant women can produce various catalytic antibodies with different enzymatic activity. These proteolytic abzymes might be involved in the direct clearance of antigens from blood.
Serum homocysteine level in gestational diabetes: a prospective study
Davari Tanha F,Khan Mohamadi F,Shariat M,Kaveh M
Tehran University Medical Journal , 2009,
Abstract: "n Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Background: Increased total plasma homocysteine (Hcy) is an accepted risk factor of cardiovascular disease (CVD), stroke, preclampsia, recurrent abortion and diabetes type I and II. The aim of the current study was to assess serum homocysteine and its relation with serum folat, vitamine B12 and lipid profile in gestational diabetes mellitus and to compare these with those of pregnant women."n"n Methods: In a prospective controlled survey 80 pregnant women (24-28 weeks) with uncomplicated pregnancies were evaluated. They were assigned to one of two groups according to the results of 100g-OGTT. In the case group there were pregnant women with gestational diabetes mellitus according to the OGTT and in the control group women who had normal OGTT results were put. Levels of fasting glucose, homocysteine, vit B12, and folic acid, uric acid, total cholesterol, triglyceride, Low Density Lipoprotein cholesterol (LDL) and High Density Lipoprotein cholesterol (HDL) were measured in both groups."n"nResults: The mean level of homocysteine in GDM group was significantly higher than control group (p=0.000). The mean level of folic acid and vit B12 was significantly lower than the level in control group (p=0.001, p=0.004 respectively). Body mass index (BMI) in GDM group was higher (p=0.000) and HDL level was lower (p=0.006) than control group. There were no significant differences among the groups with respect to levels of total cholesterol and triglyceride."n"n Conclusion: We found that patients with gestational diabetes have higher homocysteine level than normal pregnant women. This increased level seems to be related to an abnormal OGTT. Further investigations are needed to follow up these patients in the postpartum period and later on.
Nonlinear Contraction Theorems in Fuzzy Spaces
M. Mohamadi,R. Saadati,A. Shahmari,S.M. Vaezpour
Journal of Applied Sciences , 2009,
Abstract: In this study, fuzzy metric and normed space are considered and some fixed point theorems in these spaces are proved. In this study at first two fixed point theorems in nonlinear case in the fuzzy metric spaces are proved then an nonlinear contraction theorem in the fuzzy normed spaces is proved.
Distribution of Alfalfa Nodulating Sinorhizobium meliloti and S. medicae in Western Regions of Iran
M Talebi,M Bahar,GH Saeedi,A Mohamadi
Journal of Science and Technology of Agriculture and Natural Resources , 2009,
Abstract: To characterize the geographical distribution of medicago-nodulating rhizobia in western regions of Iran, 950 Sinorhizobium isolates were trapped from a combination of two local alfalfa populations (Hamedani, Nikshahri) together with a foreign cultivar ( Kodi) and soil samples from eight sites across Kurdestan, Kermanshah, Eastern Azarbayjan and Lorestan provinces. Also, a total of 45 isolates were obtained from nodules of naturally grown Melilotus officinalis (14 isolates) and Trigonella foenum-graecum (31 isolates) plants in Isfahan. On the basis of PCR partial amplification of the plasmid born nod box gene and chromosomal mucR gene of the isolates,16S ribosomal DNA PCR-restriction fragment length polymorphism analysis, and the nucleotide sequence, three isolates from alfalfa, seven isolates from M. officinalis and 13 isolates from T. foenum-graecum were proved to be Sinorhizobium medicae. The remaining isolates (943 from alfalfa, seven from M. officinalis and 18 from T. foenum-graecum) were identified as S. melilloti. Both species, S. meliloti and S. medicae, were recovered from nodules of all the hosts although S. meloti was clearly more dominant in nodulating different populations of alfalfa. Taken together, these results indicated that the abundance of S. meliloti is independent of the site of isolation and have a wide geographical distribution. In this study, the banding pattern resulting from PCR amplification of 16S rRNA gene, followed by digestion with Rsa I, clearly differentiated S. meliloti and S. medica strains, showing that PCR-RFLP is an appropriate method to discriminate medicago-nodulating rhizobian with relative rapidity.
Fixed Points of Nonlinear and Asymptotic Contractions in the Modular Space
A. Razani,E. Nabizadeh,M. Beyg Mohamadi,S. Homaei Pour
Abstract and Applied Analysis , 2007, DOI: 10.1155/2007/40575
Abstract: A fixed point theorem for nonlinear contraction in the modular space is proved. Moreover, a fixed point theorem for asymptotic contraction in this space is studied.
Prevalence of Teat End Callosity in East Azerbaijan Dairy Herds
S. Mosaferi,Z. Ostadi,A. Mohamadi,M. Nazeri,A. Davasaztabrizi
Research Journal of Biological Sciences , 2012, DOI: 10.3923/rjbsci.2011.353.356
Abstract: Teat end callosity is a very important problem which affects cows in the farms of Iran and many other countries. This disease mainly caused by the over milking and defects in the milking machine. In this survey, we focused on the four large dairy Holstein herds consist 860 dairy cows at around of Tabriz (North-west of Iran) and we assisted the teat end callosity or hyperkeratosis and its relation with milking frequency per day. In the herds A (n = 300) and B (n = 160), cows were milked 3 times day-1. In the herds C (n = 162) and D (n = 190) cows were milked 2 times day-1. Prevalence of the teat end hyperkeratosis in the herds of A and B were recorded as 14.1%. In the herds of B and C this prevalence was 12.3%. Also, according to the Wilson s grading schedule the grades of 2 and 3 of hyperkeratosis more prevalent between the cows with 3 times milking day-1 than cows with 2 times milking day-1. Statistical analyses indicated significant differences between the herds of A, B (3 times milking day-1) and herds of C, D (2 times milking day-1). In conclusion, according to the results, significant relationship exists between the cow s teat end callosity and milking frequency/day.
"TRANSMISSIBLE DRUG RESISTANCE AMONG SALMONELLA TYPHIMURIUM AND ENTEROPATHOGENIC E. COLI IN IRAN "
S.Mohadjer,Sh.Hakimi,M.Mohamadi
Iranian Journal of Public Health , 1978,
Abstract: The antimicrobial susceptibility of 118 S.typhimurium and 84 enteropathogenic E. coli isolated from human gastero-enteritis cases were examined. More than 25 different resistant patterns could be identified. Most of the strains of S. typhimurium possessed R-factors bearing resistance to ampicillin, chloromycetin, kanamycin, streptomycin, sulfonamide and tetracycline. More than 50% and more than 6% were resistant to furazolidon and nalidixic acid respectively. But they all were sensitive to gentamicin. The majority of S. typhimurium strains were harboring resistant determinats but not the RTF plasmid. Almost all the resistances could be mobilized using fi-, I-like and fi+, F-like transfer factor except for K-resistance. The E.coli strains behaved differently, that is: the majority of the strains showed resistances to chloromycetin, streptomycin, sulfomamide and tetramycine. They were all sensitive to gentamicin, furazoldon and nalidixic acid. And also the majority of the strains were harbouring both, resistant determinates and RTF plasmid. Among the non-rtansferable and non-mobilizable resistances, streptomycin-sulfonamide determinants were the most common ones.
Pheocoromocytoma; A Case Report
NM Noori,A Mohamadi Poor,M Karimi,MR Tohidi
Iranian Journal of Pediatrics , 2007,
Abstract: Objective: Pheochromocytoma is a neoplosia of chromaffin cells that is very rare in children. Its signs and symptoms result from the release of catecholamine. It is usually a solitary, unilateral encapsulated tumor. The predominant clinical findings are crises of hypertension, palpitation, abdominal pain, paleness, vomiting, sweating, and weight loss. Its diagnosis requires a certain degree of suspicion. Case report: We report on a 3-year-old child with pheochromo cytoma of difficult clinical management. Diagnosis was confirmed by anatomico- phathological study.The patient recovered after surgical resection of the tumor. Conclusion: The patient was a rare case of pheochromocytoma, his problems being especially hypertension and was cured after surgical resection of the tumor. This demonstrates the beneficial effect of early diagnosis and treatment.
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