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Behzad Houshmand,Seied Omid Keyhan,Hamid Reza Fallahi,Shaqayeq Ramezanzade,Erfan Sadeghi,Parisa Yousefi 대한악안면성형재건외과학회 2022 Maxillofacial Plastic Reconstructive Surgery Vol.44 No.-
Background: The rapidly developed vaccines against the severe acute respiratory syndrome coronavirus 2 carry arisk of provoking side effects. This study aimed to evaluate current vaccination non-serious/serious side effects. Methods: A multicenter electronic questionnaire via an online platform was conducted over a 1-week periodamong vaccinated dental staff and dental students inquiring whether they experienced vaccine-related side-effectsafter vaccine administration. Results: A total of 1205 respondents with a mean age of 39 (SD: 12) were retained for the analyses. The followingvaccines were reported; Gam-COVID-Vac (Sputnik V), ChAdOx1 nCoV-19 (AstraZeneca), BBV152 (Covaxin), or BBIBPCorV(Sinopharm). The majority of respondents received ChAdOx1 nCoV-19 (51.1%) and Gam-COVID-Vac (37.6%). The symptoms most frequently reported after vaccination were fatigue (79%), local pain in the injection site (77.4%),malaise (73%), and body pain (71.1%). Enrollees reported more onset of reactions on 0?12 h (44.1%) and 12?24 h(29.0%) after vaccine administration (p value <0.001). In 75.7%, the side effects last for up to 3 days. Merely 5.5% ofcases reported the presence of side effects after the first week. Individuals with a history of SARSCoV-2 and otherinfections (MERS, influenza, and EBV) were more likely to report a number of unserious systemic side effects. Conclusion: The commonly reported adverse events were in line with similar studies. We have concerns with thefrequency of serious adverse effects. This work necessitates the need for further clinical assessments with largersample sizes.
Modification of Activated Carbon Using Nitration Followed by Reduction for Carbon Dioxide Capture
Mohammad Saleh Shafeeyan,Amirhossein Houshmand,Arash Arami-Niya,Hosain Razaghizadeh,Wan Mohd Ashri Wan Daud 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.2
Activated carbon (AC) samples were modified using nitration followed by reduction to enhance their CO2 adsorption capacities. Besides characterization of the samples, investigation of CO2 capture performance was conducted by CO2 isothermal adsorption, temperature-programmed (TP) CO2 adsorption, cyclic CO2 adsorption–desorption, and dynamic CO2 adsorption tests. Almost all modified samples showed a rise in the amount of CO2 adsorbed when the comparison is made in unit surface area. On the other hand, some of the samples displayed a capacity superior to that of the parent material when compared in mass unit, especially at elevated temperatures. Despite ~65% decrease in the surface area, TP-CO2 adsorption of the best samples exhibited increases of ~10 and 70% in CO2 capture capacity at 30 and 100 °C, respectively.
Certifications systems as independent and rigorous tools for assessing urban sustainability
Amr Ah. Gouda,Houshmand E. Masoumi 서울시립대학교 도시과학연구원 2018 도시과학국제저널 Vol.22 No.3
Urban sustainability certification (USC) systems are witnessing a wide dissemination and some are used as globally relevant tools. In addition, USCs are being marketed as independent tools capable of assessing sustainability not only comprehensively but also using rigorous measures. The comprehensiveness and rigour of their assessment rest on a combination of simple criteria (directly prescribing indicators with quantitative/qualitative measures) and nested ones (hosting other references for sustainable planning (RsSP)) prescribed within each USC. However, such scope seems over-ambitious due to the complexity of urban sustainability and its contextual sensitivity. Accordingly, this study aims to delve in USCs and examine their rigour and independence. The study begins by analyzing the concepts of street connectivity and compactness in LEED-ND (the most rigorous USC) because both are prominent concepts and have a number of earmarked criteria with simple structure. Then, criteria with nested structure and their RsSP found in four USCs are collected and analyzed in terms of frequencies, weights, and geographic domains. This analysis aims to uncover how dependent USCs are on other RsSP and how compatible are the geographic domains of both. The results refute the rigour of LEED-ND's assessment in terms of compactness and connectivity because the prescribed measures are insufficient to assess the different variables of both concepts. Moreover, USCs are highly dependent on local RsSP (only relevant to USC's country of origin), which disagrees with their characterization as independent or international tools.
( Sharafi hakimeh ),( Hadi Maleki ),( Gholamreza Ahmadian ),( Hossein Shahbani Zahiri ),( Neda Sajedinejad ),( Behzad Houshmand ),( Hojatollah Vali ),( Kambiz Akbari Noghabi ) 한국미생물 · 생명공학회 2013 Journal of microbiology and biotechnology Vol.23 No.2
Among several bacteria examined, an antibacterial-producing Lactobacillus strain with probiotic characteristics was selected and identified based on 16S rRNA gene sequencing. Subsequent purification and mode of action of the antibacterial compounds on target cells including E. coli were investigated. Maximum production of the antibacterial compound was recorded at 18 h incubation at 30oC. Interestingly, antibacterial activity remained unchanged after heating at 121oC for 45 min, 24 h storage in temperature range of 70oC to room temperature, and 15 min exposure to UV light, and it was stable in the pH of range 2-10. The active compounds were inactivated by proteolytic enzymes, indicating their proteinaceous nature, and, therefore, referred to as bacteriocin-like inhibitory substances. Isolation and partial purification of the effective agent was done by performing ammonium sulfate precipitation and gel filtration chromatography. The molecular mass of the GFC-purified active compound (~3 kDa) was determined by Tris-Tricine SDS-PAGE. To predict the mechanisms of action, transmission electron microscopy (TEM) analysis of ultrathin sections of E. coli before and after antibacterial treatment was carried out. TEM analysis of antibacterial compounds-treated E. coli demonstrated that the completely altered bacteria appear much darker compared with the less altered bacteria, suggesting a change in the cytoplasmic composition. There were also some membrane-bound convoluted structures visible within the completely altered bacteria, which could be attributed to the response of the E. coli to the treatment with the antibacterial compound. According to the in vivo experiments oral administration of L. plantarum HKN01 resulted in recovery of infected BALB/c mice with Salmonella enterica ser. Typhimurium.
Jafari Leyla,Safinejad Kyumars,Nasiri Mahboobeh,Heidari Mansour,Houshmand Massoud 한국유전학회 2023 Genes & Genomics Vol.45 No.4
Background Male infertility due to very severe oligozoospermia has been associated with some genetic risk factors. Objective To investigate the distribution of the mutations in the CFTR gene, the CAG-repeat expansion of the AR gene, also Y chromosome microdeletions and karyotyping abnormalities in very severe oligozoospermia patients. Methods In the present case–control study, 200 patients and 200 fertile males were enrolled. All patients and control group were karyotyped. Microdeletions were evaluated using multiplex PCR. Five common CFTR mutations were genotyped using the ARMS-PCR technique. The CAG-repeat expansion in the AR gene was evaluated for each individual using sequencing. Results Overall 4% of cases shows a numerical and structural abnormality. 7.5% of patients had a deletion in one of the AZF regions on Yq, and 3.5% had a deletion in two regions. F508del was the most common (4.5%) CFTR gene mutation; G542X, and W1282X were detected with 1.5% and 1% respectively. One patient was found to have AZFa microdeletion and F508del in heterozygote form; one patient had AZFb microdeletion with F508del. F508del was seen as compound heterozygous with G542X in one patient and with W1282X in the other patient. The difference in the mean of the CAG-repeats in the AR gene in patients and control groups was statistically significant (P = 0.04). Conclusion Our study shows the genetic mutations in men with severe oligozoospermia and given the possibility of transmission of these disorders to the next generation by fertilization, counseling and genetic testing are suggested for these couples before considering ICSI.
Effect of Sodium Cromoglycate on Acetic Acid-induced Ulcerative Colitis in Mice
Zahra Ghafouri,Saeid Seyyedian,Jafar Nikbakht,Ebrahim Kouhsari,Sara Bayat,Hamidreza Zargar,Gholamreza Houshmand 대한소화기학회 2020 대한소화기학회지 Vol.75 No.1
Background/Aims: Ulcerative colitis (UC) is a type of inflammatory bowel disease that mainly involves the colon. Thus far, glucocorticoids and amino-salicylate have been the main treatment. Methods: To assess drugs with fewer side effects, this study evaluated the effects of sodium cromoglycate (SCG) on acetic acid-induced UC in rats. The treatment groups included SCG receivers (50 and 100 mg/kg, intra-orally) and sulfasalazine (SSZ) receivers (100 mg/kg, intra-orally). The colonic mucosal injury was assessed by clinical, macroscopic, and histopathological examinations. Results: In the treatment groups with 50 and 100 mg/kg of SCG, the clinical activity score decreased to 2.67±0.18 and 1.73±0.21 (p<0.05), respectively, compared to the UC control group (3.21±0.31), and were higher than that of the group given the standard treatment of 100 mg/kg SSZ (1.10±0.09). The treatment groups with 50 and 100 mg/kg of SCG showed a lower clinical gross lesion score than the UC control group (2.91±0.28 and 2.10±0.43, vs. 4.49±0.61, p<0.05) and were higher than the standard group (0.95±0.18). Treatment with SCG (100 mg/kg) decreased the macroscopic scores significantly compared to the UC control group (p<0.05) on the 8th day. Conclusions: SCG (100mg/kg) decreased significantly the clinical activity score, gross lesion, and percentage-affected area compared to the UC controls on the 8th day.
Keyhan, Seied Omid,Fallahi, Hamid Reza,Motamedi, Amin,Khoshkam, Vahid,Mehryar, Paymon,Moghaddas, Omid,Cheshmi, Behzad,Firoozi, Parsa,Yousefi, Parisa,Houshmand, Behzad Korean Association of Maxillofacial Plastic and Re 2020 Maxillofacial Plastic Reconstructive Surgery Vol.42 No.-
Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes serious acute respiratory diseases including pneumonia and bronchitis with approximately 2.3% fatality occurrence. Main body: This study argues the main concepts that need to be considered for the gradual reopening of dental offices include treatment planning approaches, fundamental elements needed to prevent transmission of SARS-CoV-2 virus in dental healthcare settings, personal protection equipment (PPE) for dental health care providers, environmental measures, adjunctive measures, and rapid point of care tests in dental offices. Conclusion: This article seeks to provide an overview of existing scientific evidence to suggest a guideline for reopening dental offices.