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Pormohammad A, Lashkarbolouki S, Azimi T, Gholizadeh P, Bostanghadiri N, Safari H, Armin S, Mohtavinejad N, Fallah F. Clinical characteristics and molecular epidemiology of children with meningitis in Tehran, Iran: a prospective study. New Microbes New Infect 2019; 32:100594. [PMID: 31641511 PMCID: PMC6796727 DOI: 10.1016/j.nmni.2019.100594] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/18/2019] [Accepted: 08/20/2019] [Indexed: 02/08/2023] Open
Abstract
The molecular epidemiology of meningitis in children is unclear in Iran, and data are scarce. We aimed to characterize its clinical and paraclinical features as well as to determine the distribution of genotype/capsular types of common bacterial meningitis agents in children in Iran. All children suspected to have meningitis aged 4 days to 15 years were enrolled onto a prospective cross-sectional study from January 2015 to September 2017. Diagnostic values of clinical features, cerebrospinal fluid and serum parameters were evaluated independently and in combination with each other by multivariate logistic regression to develop a diagnostic rule. Genotype/capsular types of all the isolates were determined by targeting serotype-specific genes with uniplex or multiplex PCR. Among 119 patients suspected of having meningitis, 43 had bacterial meningitis, 19 aseptic and one tuberculous; and there were 56 nonmeningitis cases (NMC). Presentation of four features at the same time-cerebrospinal fluid white blood cell count, protein, polymorphonuclear leukocytes and serum C-reactive protein-revealed 100% sensitivity and 86.4% specificity for diagnosis of bacterial meningitis. Haemophilus influenzae type b (60%), Streptococcus pneumoniae serotype 3 (28.5%) and Neisseria meningitidis B (63.5%) were the most prevalent serotypes. This study demonstrated that a well-designed combination of clinical and paraclinical features is useful, but these combinations are not good enough to be relied on as stand-alone exclusionary tests for the diagnosis of bacterial meningitis. In addition, public immunization of infants with the most prevalent bacterial meningitis serotypes is recommended.
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Affiliation(s)
- A. Pormohammad
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S. Lashkarbolouki
- Department of Biology, Tehran North Branch, Islamic Azad University, Tehran, Iran
| | - T. Azimi
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Students Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - P. Gholizadeh
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - N. Bostanghadiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H. Safari
- Health Promotion Research Center, school of public health, Iran University of Medical Sciences, Tehran, Iran
| | - S. Armin
- Pediatric Infections Research Center, Research Institute for Children Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - N. Mohtavinejad
- Department of Radio Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - F. Fallah
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Karimi R, Towhidi A, Zeinoaldini S, Rezayazdi K, Mousavi M, Safari H, Martinez-Pastor F. Effects of supplemental conjugated linoleic acids (CLA) on fresh and post-thaw sperm quality of Holstein bulls. Reprod Domest Anim 2017; 52:459-467. [PMID: 28176378 DOI: 10.1111/rda.12932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 12/11/2016] [Indexed: 11/30/2022]
Abstract
This study was designed to investigate the effects of feeding-protected conjugated linoleic acid (CLA) on the semen production and sperm freezability in Holstein bulls. Twelve bulls were randomly assigned to two groups (n = 6 per group). Bulls received the normal diet (control group) or the normal diet top-dressed with 50 g of CLA (treated group) for 10 weeks. The control group received 40 g/day calcium soap of fatty acid. Fresh and post-thaw semen quality was assessed on ejaculates collected at the 0, 4, 6, 8 and 10 week of supplementation. Semen evaluations including sperm concentration, motion characteristics (subjective and computer-assisted), viability (Eosin-Nigrosin), membrane integrity (hypo-osmotic swelling test) and abnormality were conducted. Semen volume, sperm concentration and total sperm output were not affected by dietary treatment (p > .05). The proportion of spermatozoa with abnormal morphology in fresh semen significantly increased (p < .05) in the CLA-fed group compared to control group. Also, in CLA-fed group, the proportion of post-thaw spermatozoa with abnormal morphology at week 10 of trial was significantly higher in CLA than control group (p < .05). Progressive motility tended to be increased in the CLA-fed group, although dietary supplementation did not affect other CASA parameters or viability in fresh and frozen-thawed sperm. In this study, CLA supplementation had little positive effect on fresh or post-thaw sperm quality of Holstein bulls.
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Affiliation(s)
- R Karimi
- Department of Animal Science, Faculty of Agricultural Science & Engineering, University of Tehran, Karaj, Iran
| | - A Towhidi
- Department of Animal Science, Faculty of Agricultural Science & Engineering, University of Tehran, Karaj, Iran
| | - S Zeinoaldini
- Department of Animal Science, Faculty of Agricultural Science & Engineering, University of Tehran, Karaj, Iran
| | - K Rezayazdi
- Department of Animal Science, Faculty of Agricultural Science & Engineering, University of Tehran, Karaj, Iran
| | - M Mousavi
- Department of Animal Science, Faculty of Agricultural Science & Engineering, University of Tehran, Karaj, Iran
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Miranzadeh M, Safari H, Akbari H, Mazaheri Tehrani A, Sharifi N, Atamaleki A. Haloxylon Activated Carbon; a Novel Absorbent to Remove Phenol from Aqueous Solutions. IAHS 2016. [DOI: 10.18869/iahs.3.3.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Affiliation(s)
- A. Blaschette
- Institut für Anorganische Chemie, Technische Universität, Braunschweig
| | - H. Safari
- Institut für Anorganische Chemie, Technische Universität, Braunschweig
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Safari H, Jamialahmadi M. Estimating the kinetic parameters regarding barium sulfate deposition in porous media: a genetic algorithm approach. ASIA-PAC J CHEM ENG 2013. [DOI: 10.1002/apj.1765] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H. Safari
- Department of Petroleum Engineering; Petroleum University of Technology; Ahwaz Iran
| | - M. Jamialahmadi
- Department of Petroleum Engineering; Petroleum University of Technology; Ahwaz Iran
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Andersson S, Safari H, Mints M, Lewensohn-Fuchs I, Gyllensten U, Johansson B. Type distribution, viral load and integration status of high-risk human papillomaviruses in pre-stages of cervical cancer (CIN). Br J Cancer 2005; 92:2195-200. [PMID: 15942630 PMCID: PMC2361820 DOI: 10.1038/sj.bjc.6602648] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
A series of 176 archival cervical intraepithelial neoplasia (CIN) was analysed for the presence, viral load and integration status of ‘high-risk’ types of human papillomavirus (HR-HPV). The samples were assayed using newly developed methods based on real-time PCR. Two methods for the extraction of DNA from the paraffin-embedded biopsies were compared: a protocol based on the MagNA pure system (Roche) and a Qiagen spin column kit (Qiagen). It was possible to amplify 94% (166) of the samples. Of these, 36, 63 and 80% of the CIN I, II and III cases contained HR-HPV. HPV 16 was the most prevalent, and was found in 20, 28 and 46% of the CIN I, II and III cases, respectively. The second most frequent HR-HPV was type 33 group, and in CIN II it was as prevalent as HPV 16. The median number of copies of HR-HPV per cell was not significantly different in the CIN I, II and III cases, but there was a wide range of viral load values over several magnitudes, regardless of the grade of CIN. All samples were found to contain integrated forms of HPV 16, frequently mixed with an episomal form.
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Affiliation(s)
- S Andersson
- Institute for Clinical Science, Division of Obstetrics and Gynaecology, Karolinska University Hospital, Huddinge, Karolinska Institute, 141 86 Stockholm, Sweden.
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