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Showing 3 results for Rahimifar
The diagnosis of Pneumocystis Carinii pneumonia by new laboratory methods
N Rahimifard , M Ahi , A Kahnamooei ,
Volume 57, Issue 4 (9 1999)
Abstract
The object of this study was to find a suitable staining method for P.carinii. This parasite is not easily stained and clinical signs are not specific for the diagnosis of P.carinii pneumonia and therefore optimal laboratory methods for observing the organism are extremely valuable. In all 17 new conventional and modified staining techniques were used on lung impression smears and tissue section of sprague Dawley Rat treated with cortisone. Of these methods modified methylene blue 1 & 2, modified cresy violet 1, 2, 3, 4 modified Gram, modified Giemsa 2 and modified Griedley techniques have not previously been reported. After comparing readability of the slides, ease of performances, rapidity, availability and sensitivity of these 17 techniques for the diagnosis of P.carinii pneumonia, modified toluidine blue 01 & 2, modified methylene blue 1 & 2 and modified cresyl violet 3, 4 are suggested as the methods of choice for the rapid diagnosis of P.carinii pneumonia.
Bacillus cereus contamination in infant formula: a study in food and drug control laboratory
Rahimifard N, Fatholahzadeh B, Pirali Hamedani M, Noory Z, Saadati Sh, Zavar M, Pirouz B, Asghari Sh, Khezripour M, Saberi S,
Volume 65, Issue 8 (3 2007)
Abstract

Background: Bacillus cereus spores distribute widely in nature and can be isolated from different kinds of foods. This bacterium can produce diarrhea and emetic enterotoxins and syndromes. As infants are known to be more susceptible to B. cereus infection due to their incomplete intestinal flora and fast growth of this bacterium during consumption, it is very important to investigate the presence of B. cereus in infant formula and possible pathogenicity of this microorganism in infants. 

Methods: In this study, 60 samples of infant formula were examined for the presence of B. cereus. From a 1/10 dilution of each sample, a total amount of 1 ml was inoculated onto four phenol red agar plates containing mannitol, egg yolk emulsion and polymyxin B sulfate. The plates were incubated at 30°C for 24 hours. Confirmation tests were then performed on suspected colonies.

Results: Among the 60 samples, 11 samples had more than 10 cfu/g, four of which contained more than 102 cfu/g. The other 49 samples showed less than 10 cfu/g of B. cereus. 

Conclusions: We suggest that for infant formula the maximum microbial limit be reduced to less than 10 cfu/g to control B. cereus contamination and to prevent infection in infants. For this purpose, infant formula should be tested by the method and confirmation tests used in this study. In addition, susceptibility to penicillin, ß-hemolysis and growth rate at 45ºC could also be performed.


Investigating the supratrochlear foramen and septum in adult humerus bones: brief report
Mahdi Hamzehtofigh , Rezvan Rahimifar , Parvindokht Bayat,
Volume 78, Issue 2 (May 2020)
Abstract
Background: The supratrochlear foramen (STF) is an important and relatively common anatomic variation in the lower end of the humerus in humans. In recent years it has become clear that STF should be emphasized because anatomical knowledge of STF is useful for anatomists, anthropologists, orthopedic surgeons, and radiologists. The anatomical structure of the humerus may play an important role in the intramedullary fixation thereby stressing the need of prior anatomical knowledge and preoperative planning in the presence of variations like STF in the distal end of the humerus. This study focuses on STF in the distal of the humerus bone and as well as the intertubercular sulcus (ITS) in the Iranian population.
Methods: This study was performed on 57 adult human humeral bones regardless of their gender at Arak University of Medical Sciences in Iran that it was done from October 2014 to March 2015. A total of 57 dried humerus (27 right side and 30 left side) were examined to determine the presence of supratrochlear foramen and septum. They were free from any pathological changes and fractures. The STF was analyzed for morphology and morphometric correlation.
Results: STF was found in only four cases (6.8%) of the humerus bones, two cases (3.4%) on the left and two cases (3.4%) on the right. The shape of the STF was oval, round and triangular. The mean STF transverse diameter in the right bones was 2.60±2.68 mm and in the left bones 0.57±0.31 mm and the mean vertical STF diameter in the right and left bones were 1.75±1.76 mm and 0.55±0.07 mm, respectively.
Conclusion: There was no significant difference in the shape of the STF and its number in the right and left bones. Twenty-seven bones (47%) out of 53 bones without supratrochlear foramen (STF) had septum.

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