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Roshani M, Taheri M, Goodarzi A, Yosefimashouf R, Shokoohizadeh L. Evaluation of antibiotic resistance, toxin-antitoxin systems, virulence factors, biofilm-forming strength and genetic linkage of Escherichia coli strains isolated from bloodstream infections of leukemia patients. BMC Microbiol 2023; 23:327. [PMID: 37925405 PMCID: PMC10625236 DOI: 10.1186/s12866-023-03081-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND One of the most common complications in patients with febrile neutropenia, lymphoma, leukemia, and multiple myeloma is a bloodstream infection (BSI). OBJECTIVE This study aimed to evaluate the antibiotic resistance patterns, virulence factors, biofilm-forming strength, and genetic linkage of Escherichia coli strains isolated from bloodstream infections (BSIs) of leukemia patients. METHODS The study conducted in Iran from June 2021 to December 2022, isolated 67 E. coli strains from leukemia patients' bloodstream infections in hospitals in two different areas. Several techniques including disk diffusion and broth microdilution were used to identify patterns of antibiotic resistance, microtiter plate assay to measure biofilm formation, and PCR to evaluate the prevalence of different genes such as virulence factors, toxin-antitoxin systems, resistance to β-lactams and fluoroquinolone antibiotics of E. coli strains. Additionally, the genetic linkage of the isolates was analyzed using the Enterobacterial Repeat Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) method. RESULTS The results showed that higher frequency of BSI caused by E. coli in man than female patients, and patients with acute leukemia had a higher frequency of BSI. Ampicillin and Amoxicillin-clavulanic acid showed the highest resistance, while Imipenem was identified as a suitable antibiotic for treating BSIs by E. coli. Multidrug-resistant (MDR) phenotypes were present in 22% of the isolates, while 53% of the isolates were ESBL-producing with the blaCTX-M gene as the most frequent β-lactamase gene. The fluoroquinolone resistance genes qnrB and qnrS were present in 50% and 28% of the isolates, respectively. More than 80% of the isolates showed the ability to form biofilms. The traT gene was more frequent than other virulence genes. The toxin-antitoxin system genes (mazF, ccdAB, and relB) showed a comparable frequency. The genetic diversity was detected in E. coli isolates. CONCLUSION Our results demonstrate that highly diverse, resistant and pathogenic E. coli clones are circulating among leukemia patients in Iranian hospitals. More attention should be paid to the treatment and management of E. coli bloodstream infections in patients with leukemia.
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Affiliation(s)
- Mahdaneh Roshani
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taheri
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Goodarzi
- Infectious Disease Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Rassoul Yosefimashouf
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Leili Shokoohizadeh
- Department of Medical Laboratory Sciences, School of Paramedicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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Botros M, Alsaghayer A, Tanabe C, Armas K, Mabry M, Goodarzi A, Yau S, Youssef J, Huang H, Ren D, Suarez E. Extending Cold Ischemic Time Using LUNGguard: A Single Center Experience in Time Shifting. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1442] [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: 04/05/2023] Open
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3
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Pour Mohammad A, Goodarzi A, Gholizadeh Mesgarha M. LB949 A systematic review and meta-analysis on RCTs evaluating combination laser treatment in skin rejuvenation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.968] [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: 11/16/2022]
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4
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Idehen JB, Kazi U, Quainoo-Acquah JA, Sperry B, Zaman I, Goodarzi A, Chida S, Nalbandyan L, Hernandez EW, Sharma V, Mulume R, Okoh OM, Okonkwo I, Harrison H, Soetan OT, Iqbal R, Lesniowska MK, Baloch AH, Jolayemi A. On Patterns of Neuropsychiatric Symptoms in Patients With COVID-19: A Systematic Review of Case Reports. Cureus 2022; 14:e25004. [PMID: 35712343 PMCID: PMC9194523 DOI: 10.7759/cureus.25004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2022] [Indexed: 01/24/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) has various neuropsychiatric manifestations, including psychotic, mood, anxiety disorders, trauma-related disorders, and cognitive disorders, such as delirium. Although the psychosocial effects of the COVID-19 pandemic contribute to an increase in psychiatric comorbidities, the COVID-19 virus is also an independent risk factor. Previous studies have revealed that the virus can invade the neural tissue, which causes an imbalance of neurotransmitters that cause neuropsychiatric symptoms. The aim of this article is to conduct a systematic review to determine the patterns of neuropsychiatric manifestations of COVID-19, discussing the frequency and its impact on pre-existing psychiatric disorders. Thirty-nine case reports were collected and analyzed for a systematic review. They were full-text, peer-reviewed journal publications from November 2020 to February 2021. Fifty-three patients were included in our study. The most frequent symptom was abnormal/bizarre behavior (50.9%), followed by agitation/aggression (49.1%), and the third most common was altered mental status and delirium (47.2%). Only 48% of our patients had a pre-existing psychiatric disorder, including three not formally diagnosed but displayed psychiatric symptoms prior to the COVID-19 infection. Findings suggest a positive correlation of new-onset psychiatric symptoms with the SARS-CoV-2 virus. However, the exact pathophysiology of the virus itself causing neuropsychiatric manifestations needs to be investigated further.
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Serpico S, Parsikia A, Goodarzi A, James RM, Koizumi N, Ortiz J. Suicide amongst transplant recipients: Trends and unique risk factors. Clin Transplant 2022; 36:e14669. [DOI: 10.1111/ctr.14669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/03/2022] [Accepted: 04/04/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Scott Serpico
- Philadelphia College of Osteopathic Medicine Philadelphia USA
| | - Afshin Parsikia
- Albert Einstein Healthcare Network, Surgery Philadelphia USA
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Pham C, Nguyen M, Cooper M, Pierce B, Harvey D, Yau S, Youssef J, Goodarzi A, Nguyen D, Graviss E, Huang H. Use of a Medication Questionnaire to Identify Lung Transplant Recipients Benefiting from Pharmacist Prioritization in Clinic. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1046] [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: 11/25/2022] Open
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7
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He Y, Chihara R, Suarez E, Huang H, Goodarzi A, Yau S, Youssef J, Gaber A, MacGillivray T, Chan E. Single Lung Transplantation for Pulmonary Fibrosis Secondary to COVID-19. J Heart Lung Transplant 2022. [PMCID: PMC8988577 DOI: 10.1016/j.healun.2022.01.1498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Introduction Case Report Summary
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Goodarzi A, Valikhani M, Amiri F, Safari A. The mechanisms of mutual relationship between malignant hematologic cells and mesenchymal stem cells: Does it contradict the nursing role of mesenchymal stem cells? Cell Commun Signal 2022; 20:21. [PMID: 35236376 PMCID: PMC8889655 DOI: 10.1186/s12964-022-00822-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 09/20/2021] [Accepted: 12/18/2021] [Indexed: 12/15/2022] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) are known as the issue in biology because of some unpredictable characteristics in the different microenvironments especially in their bone marrow niche. MSCs are used in the regenerative medicine because of their unique potentials for trans-differentiation, immunomodulation, and paracrine capacity. But, their pathogenic and pro-survival effects in tumors/cancers including hematologic malignancies are indisputable. MSCs and/or their derivatives might be involved in tumor growth, metastasis and drug resistance in the leukemias. One of important relationship is MSCs and hematologic malignancy-derived cells which affects markedly the outcome of disease. The communication between these two cells may be contact-dependent and/or contact-independent. In this review, we studied the crosstalk between MSCs and malignant hematologic cells which results the final feedback either the progression or suppression of blood cell malignancy. Video abstract.
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Affiliation(s)
- Alireza Goodarzi
- Department of Medical Laboratory Sciences, School of Paramedicine, Hamadan University of Medical Sciences, Shahid Fahmideh Blvd., The Opposite Side of Mardom Park, Hamadan, 6517838741, Iran
| | - Mohsen Valikhani
- Hematology Department, School of Allied Medical Science, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Amiri
- Department of Medical Laboratory Sciences, School of Paramedicine, Hamadan University of Medical Sciences, Shahid Fahmideh Blvd., The Opposite Side of Mardom Park, Hamadan, 6517838741, Iran.
| | - Armita Safari
- Student Research Committee, Hamadan University of Medical Science, Hamadan, Iran
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Goodarzi A, Rad F, Esmaeili OS, Forouzeshpour F, Najmabadi H, Azarkeivan A. 3091 – CLINICAL FEATURES AND MOLECULAR BASIS OF THALASSEMIC PATIENTS WITH HOMOZYGOTE FORM OF IVSII-I/ IVSII-I MUTATION AND SYNCHRONIZATION WITH Α-GENE MUTATION. Exp Hematol 2022. [DOI: 10.1016/j.exphem.2022.07.147] [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: 11/04/2022]
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10
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Roshani M, Goodarzi A, Dehbashi S, Afrasiabi F, Goudarzi H, Hashemi A, Arabestani MR. New Delhi metallo-β-lactamase-1 among Escherichia coli strains isolated from leukemia patients in Iran: two case reports. J Med Case Rep 2021; 15:567. [PMID: 34823580 PMCID: PMC8614037 DOI: 10.1186/s13256-021-03160-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/19/2021] [Indexed: 11/18/2022] Open
Abstract
Background Escherichia coli has appeared as an important opportunistic pathogen responsible for nosocomial infections in patients with immunodeficiency, particularly in leukemia patients. New Delhi metallo-beta-lactamase is an enzyme originally found in Enterobacteriaceae. Case presentation In this study, 80 isolates of Escherichia coli and Klebsiella pneumoniae were collected over the course of 2 years from two medical centers in Tehran, Iran. Production of carbapenemase was detected in the isolates using modified Hodge test. New Delhi metallo-beta-lactamase-1 genes were detected by polymerase chain reaction amplification with specific primers. Two New Delhi metallo-beta-lactamase-1-producing Escherichia coli strains were isolated from two Iranian patients with leukemia. These two patients were 6 and 15 years old, one female and the other male, from two oncology centers in Iran. The isolates were resistant to carbapenems (imipenem, meropenem), and two isolates were positive for carbapenemase production by modified Hodge test. Conclusions The emergence of New Delhi metallo-beta-lactamase-1-producing Escherichia coli is a threat for leukemia patients in oncology and hematology departments. We conclude that the incidence of multidrug resistant pathogens has increased among patients with leukemia and is life threatening.
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Affiliation(s)
- Mahdane Roshani
- Department of Microbiology, Faculty of Medicine, Nutrition Research Center, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Park Mardome, Hamadan, IR, Iran
| | - Alireza Goodarzi
- Department of Medical Laboratory Sciences, School of Paramedicine, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Park Mardome, Hamadan, IR, Iran
| | - Sanaz Dehbashi
- Department of Microbiology, Faculty of Medicine, Nutrition Research Center, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Park Mardome, Hamadan, IR, Iran
| | - Farhad Afrasiabi
- Department of Microbiology, Faculty of Medicine, Nutrition Research Center, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Park Mardome, Hamadan, IR, Iran
| | - Hossein Goudarzi
- Department of Microbiology, Shahid Beheshti University of Medical Sciences, Shahid Shahriari Square, Daneshjou Boulevard, Shahid Chamran Highway, 1983969411, Tehran, Iran
| | - Ali Hashemi
- Department of Microbiology, Shahid Beheshti University of Medical Sciences, Shahid Shahriari Square, Daneshjou Boulevard, Shahid Chamran Highway, 1983969411, Tehran, Iran
| | - Mohammad Reza Arabestani
- Department of Microbiology, Faculty of Medicine, Nutrition Research Center, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Park Mardome, Hamadan, IR, Iran.
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Seirafianpour F, Sodagar S, Mozafarpoor S, Baradaran HR, Panahi P, Hassanlouei B, Goodarzi A. Systematic review of single and combined treatments for different types of striae: a comparison of striae treatments. J Eur Acad Dermatol Venereol 2021; 35:2185-2198. [PMID: 34021922 DOI: 10.1111/jdv.17374] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 04/30/2021] [Indexed: 12/16/2022]
Abstract
Striae distensae (SD) or stretch marks are among the most common forms of atrophic scarring and cosmetic problems, especially in women, that negatively affect quality of life. The main causes of SD vary widely, but the most significant ones include obesity, pregnancy, high corticosteroid levels, weight changes, endocrine disorders and genetic predispositions. Various modalities are available for the treatment of SD; however, there is still no gold standard therapy for this condition. Given the many questions concerning the preferred therapeutic modalities for SD or their overall cost-effectiveness, this comprehensive systematic review discusses the most prevalent, recent and promising therapies for SD in three main categories, including single therapy, therapeutic comparisons and combination therapy. A systematic search was carried out in Medline, Scopus, Web of Science and Google Scholar for original articles published on the treatment of SD by 20 May 2019. One hundred articles were reviewed and divided into three categories. In the single therapy category, we found that laser and other light-based devices and topical treatments are the most commonly applied interventions. In the therapeutic comparison category, we found that most of the common therapeutic modalities are equally effective and there is no significant difference between them in side-effects and treatment duration. In the combination therapy category, we found that the combination of two or more modalities is usually better than using each one alone.
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Affiliation(s)
- F Seirafianpour
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - S Sodagar
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - S Mozafarpoor
- Department of Dermatology, Skin Disease and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - H R Baradaran
- Ageing Clinical & Experimental Research Team, Institute of Applied Health Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - P Panahi
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - B Hassanlouei
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - A Goodarzi
- Department of Dermatology, Rasool Akram Medical Complex, Iran University of Medical Sciences, Tehran, Iran
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12
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Yousefian I, Zare-Shahneh A, Goodarzi A, Baghshahi H, Fouladi-Nashta AA. The effect of Tempo and MitoTEMPO on oocyte maturation and subsequent embryo development in bovine model. Theriogenology 2021; 176:128-136. [PMID: 34607131 DOI: 10.1016/j.theriogenology.2021.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/02/2021] [Revised: 09/17/2021] [Accepted: 09/18/2021] [Indexed: 12/26/2022]
Abstract
Reactive oxygen species (ROS) are one of the factors which reduces oocyte quality and viability of the in vitro produced embryos. Oocyte mitochondria are the major source of ROS production, hence, and the addition of mitochondrion-specific antioxidants could be suggested to minimize the damage caused by ROS during culture. MitoTEMPO, a targeted mitochondrial antioxidant, is formed by conjugating TEMPO to triphenylphosphonium and has an activity like that of superoxide dismutase. It can pass through lipid bilayers easily and accumulate selectively in mitochondria. The goal of this study was to investigate the effects of MitoTEMPO and its non-targeted form, TEMPO, on the developmental competence of bovine oocytes. Accordingly, oocytes were cultured in maturation medium supplemented with either five mM TEMPO (T5) or one μM MitoTEMPO (M1), or T5 + M1 (MT15), or without the antioxidants (C). Nuclear maturation to metaphase II (MII) stage, intracellular glutathione (GSH) content and ROS levels in matured oocytes were analyzed. In addition, cleavage after in vitro fertilization, and blastocyst rates, total cell number in blastocysts as well as the relative abundance of apoptosis-related genes (BAX and BCL2) in blastocysts were determined. Results revealed that the proportion of oocytes at the MII stage, embryos at the blastocyst stage and total cell number in blastocysts increased significantly in the M1 group compared to the C and T5 groups. The levels of intracellular GSH and ROS in oocytes decreased in the M1 group than in the C group (P < 0.05). The expression level of the pro-apoptotic gene (BAX) reduced in blastocysts from the M1 group in comparison to the C and T5 groups (P < 0.05). On the other hand, the expression level of anti-apoptotic gene (BCL2) in obtained blastocysts was not affected by TEMPO and MitoTEMPO. However, the ratio of BAX/BCL2 in blastocysts from the M1 and MT15 groups decreased significantly compared to the C group. These findings suggest that MitoTEMPO can mitigate the adverse effects of oxidative stress on the developmental competence of bovine oocytes.
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Affiliation(s)
- I Yousefian
- Department of Animal Science, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran
| | - A Zare-Shahneh
- Department of Animal Science, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
| | - A Goodarzi
- Department of Animal Science, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran
| | - H Baghshahi
- Department of Animal Science, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran
| | - A A Fouladi-Nashta
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, Hawkshead Campus, UK
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Atefi N, Fallahpour M, Sharifi S, Ghassemi M, Roohaninasab M, Goodarzi A. Probiotic as an adjuvant therapy in chronic urticaria: a blinded randomized controlled clinical trial. Eur Ann Allergy Clin Immunol 2021; 54:123-130. [PMID: 33939347 DOI: 10.23822/eurannaci.1764-1489.200] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Background. Chronic spontaneous urticaria (CSU) is a common and treatment challenging disorder which may involve about 2% of normal population and in 50% do not respond properly even to the second line therapies. We aimed to evaluate the efficacy and safety of a synbiotic (prebiotic + probiotic) named as LactoCare in treatment of CSU in the RCT for the first time. Methods. This blinded RCT conducted on 42 patients (21 patients in control antihistamine group and 21 in intervention antihistamine + probiotic group) with CSU during 8 weeks. The efficacy assessed by Urticaria Activity Score (UAS7) and quality of life measured by Persian validated Dermatology Life Quality Index (DLQI). Results. Before and after UAS7 score in control group was 35.33 ± 7.81 and 16.86 ± 13.54, respectively. There was 53% score reduction in control group. Before and after UAS7 score in intervention group was 32 ± 7.84 and 11 ± 11.41, respectively. There was 66% score reduction in intervention group. Improvement of DLQI in control and intervention group was 44% and 66%, respectively. At the end, UAS7 score reduction and DLQI improvement in both groups was statistically significant. Conclusions. Probiotics are effective, safe and satisfactory adjuvant therapy for CSU. Combination of probiotic and antihistamines had no statistically significant different efficacy than the antihistamine alone, based on UAS7 score. But Patients with combination therapy may experience higher reduction rate of itch, number of urticaria and total UAS7 score that is clinically of great value and is really practical by itself. Patients with combination therapy experienced more improvement of quality of life (DLQI).
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Affiliation(s)
- N Atefi
- School of Medicine, Department of Dermatology, School of Medicine, Iran University of Medical Sciences (IUMS), Rasool Akram Medical Complex, Tehran, Iran
| | - M Fallahpour
- Department of Allergy and Clinical Immunology, School of Medicine, Iran University of Medical Sciences (IUMS), Rasool Akram Medical Complex, Tehran, Iran
| | - S Sharifi
- School of Medicine, Department of Dermatology, School of Medicine, Iran University of Medical Sciences (IUMS), Rasool Akram Medical Complex, Tehran, Iran
| | - M Ghassemi
- School of Medicine, Department of Dermatology, School of Medicine, Iran University of Medical Sciences (IUMS), Rasool Akram Medical Complex, Tehran, Iran
| | - M Roohaninasab
- School of Medicine, Department of Dermatology, School of Medicine, Iran University of Medical Sciences (IUMS), Rasool Akram Medical Complex, Tehran, Iran
| | - A Goodarzi
- School of Medicine, Department of Dermatology, School of Medicine, Iran University of Medical Sciences (IUMS), Rasool Akram Medical Complex, Tehran, Iran
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Saeidian A, Youssefian L, Sotoudeh S, Goodarzi A, Mahmoudi H, Yousefi M, Zeinali S, Casanova J, Jouanguy E, Uitto J, Vahidnezhad H. 172 Inherited STK4/MST1 deficiency in two unrelated families with atypical epidermodysplasia verruciformis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.192] [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: 10/21/2022]
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Ghaffari-Rafi A, Nosova K, Kim K, Goodarzi A. Intradural Disc Herniation in the Setting of Congenital Lumbar Spinal Stenosis. Neurochirurgie 2021; 68:335-341. [PMID: 33901524 DOI: 10.1016/j.neuchi.2021.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/07/2020] [Revised: 03/10/2021] [Accepted: 04/11/2021] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Accounting for an estimated 1.10-1.76% of all lumbar herniations, lumbar intradural disc herniation (IDH) occurs primarily in males during the fourth to fifth decades of life. While not validated, congenital lumbar spinal stenosis (CLSS) is implicated as one precipitating factor for IDH. CASE REPORT We report 28-year-old Hispanic female with CLSS, severe obesity, and degenerative disk disease, with a history of minimally invasive surgical (MIS) decompression for a large paracentral L4-5 disc herniation at 25. After three years, the patient developed sudden burning dysesthesias in the L4-5 dermatomes bilaterally and temporary leg weakness. Lumbar magnetic resonance imaging exhibited severe L4-5 spinal stenosis, and the patient underwent repeat MIS decompression, which again provided her with adequate symptom resolution. However, 20 days postoperatively she developed cauda equina syndrome with anal dysfunction, and bilateral leg and foot weakness. Upon open surgical exploration we discovered a tense L4-5 dural protrusion. After a dorsal durotomy, a large IDH with a ventral dural tear was identified. Subsequent to adequate debulking of the IDH, the ventral tear was repaired, and an expansile duraplasty was performed. Overall, the patient's bladder and bowel function, pain, hypoesthesia, and motor strength all improved. Two weeks after surgery she presented with a lumbar pseudomeningocele that was managed conservatively. CONCLUSION This report not only highlights an atypical presentation of IDH and is the first case of CLSS linked with IDH, lending support to the hypothesis that CLSS can lead to IDH, but also provides a comprehensive review of IDHs.
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Affiliation(s)
- A Ghaffari-Rafi
- University of Hawai'i at Mānoa, John A. Burns School of Medicine, 651, Ilalo street, 96813 Honolulu, HI, USA.
| | - K Nosova
- University of California, Davis, School of Medicine, Department of Neurological Surgery, Sacramento, CA, USA
| | - K Kim
- University of California, Davis, School of Medicine, Department of Neurological Surgery, Sacramento, CA, USA
| | - A Goodarzi
- University of California, Davis, School of Medicine, Department of Neurological Surgery, Sacramento, CA, USA
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Fekete A, Yau S, Youssef J, Goodarzi A, Huang H. Antibody Mediated Rejection of Unrelated Donor Lung. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2056] [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: 11/17/2022] Open
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Dinunno C, Pham C, Pierce B, Nguyen D, Graviss E, Huang H, Goodarzi A, Yau S, Youssef J. Time to Therapeutic Tacrolimus Levels and Association with Acute Cellular Rejection and De Novo Donor-Specific Antibody Development in Lung Transplant Recipients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1927] [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: 11/17/2022] Open
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Chan E, Goodarzi A, Graviss E, Chihara R, Youssef G, Nguyen D, Yau S, Suarez E, MacGillivray T, Huang H, Gaber O. Still Valid: Reassessing A Lung Transplant Recipient Risk of Death Model. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.478] [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: 11/27/2022] Open
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Pham C, Chaplain A, Pierce B, Nguyen D, Graviss E, Goodarzi A, Yau S, Youssef J, Huang H. Safety of Cumulative Dose Anti-Thymocyte Globulin in Lung Transplant. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Hosseini SE, Molavi B, Goodarzi A, Alizadeh A, Yousefzadeh A, Sodeifi N, Arab L, Aghdami N. The efficacy of platelet gel derived from umbilical cord blood on diabetic foot ulcers: A double-blind randomized clinical trial. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.wndm.2020.100178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Lajevardi V, Abedini R, Moghaddasi M, Nassiri SF, Goodarzi A. Bone mineral density is lower in male than female patients with plaque-type psoriasis in Iran. Int J Womens Dermatol 2017; 3:201-205. [PMID: 29234714 PMCID: PMC5715221 DOI: 10.1016/j.ijwd.2017.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 12/16/2015] [Revised: 04/22/2017] [Accepted: 07/30/2017] [Indexed: 02/08/2023] Open
Abstract
Background There are many similarities with regard to contributing cytokines in patients with psoriasis and osteoporosis. A theory of probable relationship between these two entities has been proposed but there is no concordant consensus. The aim of this study was to evaluate bone mineral density (BMD) in patients with psoriasis. Method and materials This cross-sectional study of BMD was conducted with 64 eligible patients with psoriasis who were referred to the dermatology clinic of Razi hospital in Tehran, Iran in between 2011 and 2012. Results The mean T score of femoral neck was –1.17 and –0.49 in men and women, respectively, which was statistically significant (p = .047). The mean T score of the lumbar spine was –0.93 and –0.30 in men and women, respectively, but not statistically significant (p = .058). In total except with the exclusion of the study site (femur or lumbar), men and women did not have a statistically significant difference with regard to osteoporosis or osteopenia in BMD (p = .114). The Pearson correlation coefficient demonstrated a moderate inverse relationship between age and T score of the femoral neck and lumbar spine (r = –0.419 and –.406, respectively), which was statistically significant (p = .001). Although there was no statistically significant relationship between the Psoriasis Area and Severity Index (PASI) and T scores of the femoral neck (p = .596), a positive and weak correlation was observed between the PASI and T scores for the lumbar spine, which was statistically significant (r = 0.269; p = .03). Conclusion Patients with psoriasis had decreased bone density, which was more significant in men. Prevalence of osteoporosis showed no statistically significant difference when compared with the healthy population in Iran.
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Affiliation(s)
- V Lajevardi
- Department of Dermatology, Tehran University of Medical Sciences, Razi Hospital, Tehran, Iran
| | - R Abedini
- Department of Dermatology, Tehran University of Medical Sciences, Razi Hospital, Tehran, Iran
| | - M Moghaddasi
- Department of Rheumatology, Tehran University of Medical Sciences, Sina Hospital, Tehran, Iran
| | - S F Nassiri
- Department of Dermatology, Tehran University of Medical Sciences, Razi Hospital, Tehran, Iran
| | - A Goodarzi
- Department of Dermatology, Iran University of Medical Sciences, Rasool Akram Hospital, Tehran, Iran
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22
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Shirzad N, Bordbar S, Goodarzi A, Mohammad M, Khosravani P, Sayahpour F, Baghaban Eslaminejad M, Ebrahimi M. Umbilical Cord Blood Platelet Lysate as Serum Substitute in Expansion of Human Mesenchymal Stem Cells. Cell J 2017; 19:403-414. [PMID: 28836402 PMCID: PMC5570405 DOI: 10.22074/cellj.2017.4886] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 05/16/2016] [Indexed: 01/29/2023]
Abstract
Objective The diverse clinical applications for human mesenchymal stem cells (hM-
SCs) in cellular therapy and regenerative medicine warrant increased focus on developing adequate culture supplements devoid of animal-derived products. In the
present study, we have investigated the feasibility of umbilical cord blood-platelet
lysate (UCB-PL) as a standard substitute for fetal bovine serum (FBS) and human
peripheral blood-PL (PB-PL).
Materials and Methods In this experimental study, platelet concentrates (PC) from UCB
and human PB donors were frozen, melted, and sterilized to obtain PL. Quality control
included platelet cell counts, sterility testing (viral and microbial), total protein concentrations, growth factor levels, and PL stability. The effects of UCB-PL and PB-PL on hMSCs
proliferation and differentiation into osteocytes, chondrocytes, and adipocytes were studied and the results compared with FBS.
Results UCB-PL contained high levels of protein content, platelet-derived growth factor-AB (PDGF-AB), and transforming growth factor (TGF) compared to PB-PL. All growth
factors were stable for at least nine months post-storage at -70˚C. hMSCs proliferation
enhanced following treatment with UCB-PL. With all three supplements, hMSCs could
differentiate into all three lineages.
Conclusion PB-PL and UCB-PL both were potent in hMSCs proliferation. However, PB
promoted osteoblastic differentiation and UCB-PL induced chondrogenic differentiation.
Because of availability, ease of use and feasible standardization of UCB-PL, we have suggested that UCB-PL be used as an alternative to FBS and PB-PL for the cultivation and
expansion of hMSCs in cellular therapy.
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Affiliation(s)
- Negin Shirzad
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Sima Bordbar
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Alireza Goodarzi
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Monire Mohammad
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Pardis Khosravani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Froughazam Sayahpour
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Marzieh Ebrahimi
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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23
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Owen D, Dawson K, Pierce B, Goodarzi A, Sinha N, Youssef J, Kaleekal T. Single-Center Experience with Epstein-Barr Virus Screening in Lung Transplant Recipients to Identify Patients with Post-Transplant Lymphoproliferative Disorder. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.147] [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: 11/25/2022] Open
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24
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Chan E, Nguyen D, Sinha N, Kaleekal T, Goodarzi A, Youssef J, Bruckner B, Suarez E, Scheinin S, Graviss E, Gaber A. The Lung Transplant Risk Model - A Nationally Validated Tool for Pre-Transplant Risk Assessment. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.293] [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: 11/16/2022] Open
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25
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Siddiqui A, Zahiruddin F, Kumar G, Goodarzi A, Yousseff J, Majumdar T, Sinha N, Kaleekal T. Association of Methacholine Challenge Test with Diagnosis of Bronchiolitis Obliterans Syndrome in Lung Transplant Patients. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1499] [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: 10/19/2022] Open
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26
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Emadedin M, Labibzadeh N, Fazeli R, Mohseni F, Hosseini SE, Moghadasali R, Mardpour S, Azimian V, Goodarzi A, Ghorbani Liastani M, Mirazimi Bafghi A, Baghaban Eslaminejad M, Aghdami N. Percutaneous Autologous Bone Marrow-Derived Mesenchymal Stromal Cell Implantation Is Safe for Reconstruction of Human Lower Limb Long Bone Atrophic Nonunion. Cell J 2016; 19:159-165. [PMID: 28367426 PMCID: PMC5241512 DOI: 10.22074/cellj.2016.4866] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 05/07/2016] [Indexed: 11/06/2022]
Abstract
Objective Nonunion is defined as a minimum of a 9-month period of time since an injury
with no visibly progressive signs of healing for 3 months. Recent studies show that application
of mesenchymal stromal cells (MSCs) in the laboratory setting is effective for bone
regeneration. Animal studies have shown that MSCs can be used to treat nonunions. For
the first time in an Iranian population, the present study investigated the safety of MSC
implantation to treat human lower limb long bone nonunion.
Materials and Methods It is a prospective clinical trial for evaluating the safety of using
autologus bone marrow derived mesenchymal stromal cells for treating nonunion. Orthopedic
surgeons evaluated 12 patients with lower limb long bone nonunion for participation in this
study. From these, 5 complied with the eligibility criteria and received MSCs. Under fluoroscopic
guidance, patients received a one-time implantation of 20-50×106 MSCs into the nonunion site.
All patients were followed by anterior-posterior and lateral X-rays from the affected limb, in addition
to hematological, biochemical, and serological laboratory tests obtained before and 1, 3, 6,
and 12 months after the implantation. Possible adverse effects that included local or systemic,
serious or non-serious, and related or unrelated effects were recorded during this time period.
Results From a safety perspective, all patients tolerated the MSCs implantation during
the 12 months of the trial. Three patients had evidence of bony union based on the after
implantation Xrays.
Conclusion The results have suggested that implantation of bone marrow-derived MSCs
is a safe treatment for nonunion. A double-blind, controlled clinical trial is required to assess
the efficacy of this treatment (Registration Number: NCT01206179).
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Affiliation(s)
- Mohsen Emadedin
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Narges Labibzadeh
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Roghayeh Fazeli
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Fatemeh Mohseni
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Seyedeh Esmat Hosseini
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Reza Moghadasali
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Soura Mardpour
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Vajiheh Azimian
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Alireza Goodarzi
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maede Ghorbani Liastani
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ali Mirazimi Bafghi
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Nasser Aghdami
- Department of Regenerative Biomedicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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27
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Sinha N, Scheinin S, Siddiqui A, Goodarzi A, Kaleekal T, Youssef J, Gaber A. A Strategy of Performing Coronary Artery Bypass Grafting (CABG) Prior to Wait-Listing Candidates for Lung Transplantation (LT) Is Safe and Feasible. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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28
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Goodarzi A, Danaee I, Eskandari H, Nikmanesh S. Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr. J ELECTROCHEM SCI TE 2016. [DOI: 10.33961/jecst.2016.7.1.58] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Goodarzi A, Danaee I, Eskandari H, Nikmanesh S. Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr. J ELECTROCHEM SCI TE 2016. [DOI: 10.5229/jecst.2016.7.1.58] [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: 11/15/2022]
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31
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Goodarzi A, Kamyab K, Ehsani A. P0054 Demographic and histopathological study of Kaposi’s sarcoma in a dermatology clinic in Iran during the period 2006–2011. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.098] [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: 11/17/2022]
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32
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Balighi K, Daneshpazhooh M, Aghazadeh N, Hejazi P, Aryanian Z, Azizpour A, Rahbar Z, Goodarzi A, Chams-Davatchi C. Pemphigus vulgaris-associated Kaposi's sarcoma: response to paclitaxel and review of the literature. J Eur Acad Dermatol Venereol 2013; 28:987-94. [PMID: 24341453 DOI: 10.1111/jdv.12348] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 11/18/2013] [Indexed: 11/27/2022]
Abstract
Systemic corticosteroids have long been the mainstay of treatment for pemphigus patients. However, the necessity of their high-dose and long-term administration has brought about a number of complications, sometimes causing significant morbidities. Maintaining a balance between therapeutic and undesirable effects of medications is not always easily achievable. Therefore, additional treatment modalities are frequently needed to control side-effects. Kaposi's sarcoma (KS) is a rare, potentially life-threatening complication in this setting. Due to the rarity of data on pemphigus-associated KS treatment, the best therapeutic approach is still undecided. Here, we report two cases of pemphigus patients who had developed extensive KS as a result of severe immunosuppressive therapy and were successfully treated with paclitaxel. In addition, we performed a review of literature to assess the results of the previously employed treatment modalities in this setting.
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Affiliation(s)
- K Balighi
- Autoimmune Bullous Diseases Research Centre, Razi hospital, Tehran University of Medical Sciences, Tehran, Iran
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Fahimi F, Tabarsi P, Kobarfard F, Bozorg BD, Goodarzi A, Dastan F, Shahsavari N, Emami S, Habibi M, Salamzadeh J. Isoniazid, rifampicin and pyrazinamide plasma concentrations 2 and 6 h post dose in patients with pulmonary tuberculosis. Int J Tuberc Lung Dis 2013; 17:1602-6. [DOI: 10.5588/ijtld.13.0019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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34
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Abstract
ABSTRACTMagnetic nanoparticles have found application in medical diagnostics such as magnetic resonance imaging and therapies such as cancer treatment. In these applications, it is imperative to have a biocompatible solvent such as water at optimum pH for possible bio-ingestion. In the present work, a synthetic methodology has been developed to get a well-dispersed and homogeneous aqueous suspension of Fe3O4 nanoparticles in the size range of 8–10 nm. The surface functionalization of the particles is provided by citric acid. The particles have been characterized using transmission electron microscopy, magnetization measurements with a superconducting quantum interference device, FTIR spectroscopy (for surfactant binding sites), thermogravimetric studies (for strength of surfactant binding), and x-ray photoelectron spectroscopy and x-ray diffraction (for composition and phase information). The carboxylate functionality on the surface provides an avenue for further surface modification with fluorescent dyes, hormone linkers etc for possible cell-binding, bioimaging, tracking, and targeting.
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35
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Sahoo Y, Goodarzi A, Swihart MT, Ohulchanskyy TY, Kaur N, Furlani EP, Prasad PN. Aqueous Ferrofluid of Magnetite Nanoparticles: Fluorescence Labeling and Magnetophoretic Control. J Phys Chem B 2005; 109:3879-85. [PMID: 16851439 DOI: 10.1021/jp045402y] [Citation(s) in RCA: 337] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A method is presented for the preparation of a biocompatible ferrofluid containing dye-functionalized magnetite nanoparticles that can serve as fluorescent markers. This method entails the surface functionalization of magnetite nanoparticles using citric acid to produce a stable aqueous dispersion and the subsequent binding of fluorescent dyes to the surface of the particles. Several ferrofluid samples were prepared and characterized using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), BET surface area analysis, transmission electron microscopy (TEM), and SQUID magnetometry. In addition, confocal fluorescence microscopy was used to study the response of the fluorescent nanoparticles to an applied magnetic field and their uptake by cells in vitro. Results are presented on the distribution of particle sizes, the fluorescent and magnetic properties of the nanoparticles, and the nature of their surface bonds. Biocompatible ferrofluids with fluorescent nanoparticles enable optical tracking of basic processes at the cellular level combined with magnetophoretic manipulation and should be of substantial value to researchers engaged in both fundamental and applied biomedical research.
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Affiliation(s)
- Yudhisthira Sahoo
- Department of Chemistry, Institute for Lasers, Photonics and Biophotonics, University at Buffalo (SUNY), Buffalo, New York 14260, USA
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