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Hadad B, Aryana K, Kamali H, Askari E. 99m Tc-HYNIC-FAPI-46 SPECT/CT Uptake in Lactating Breasts. Clin Nucl Med 2024; 49:e184-e185. [PMID: 38377358 DOI: 10.1097/rlu.0000000000005102] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 02/22/2024]
Abstract
ABSTRACT A 36-year-old woman with a history of medullary thyroid carcinoma was referred for 99m Tc-HYNIC-FAPI-46 scan. Her calcitonin levels gradually increased after external beam radiation therapy, whereas her CEA levels were stable. A few suspicious tumoral lymphadenopathies were localized to the superior mediastinum. Interestingly, bilateral physiologic breast uptake was noticed, which was presumed to be due to lactation in the past 18 months. To our knowledge, physiologic breast uptake in 99m Tc-HYNIC-FAPI imaging has not been previously reported.
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Affiliation(s)
- Bentolhoda Hadad
- From the Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad
| | - Kamran Aryana
- From the Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad
| | - Hassan Kamali
- Chemistry Department, Kharazmi University, Tehran, Iran
| | - Emran Askari
- From the Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad
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Abbasi Kasbi N, Ghadiri F, Sahraian MA, Nahayati MA, Moghadasi AN, Langroodi HG, Poursadeghfard M, Hosseini S, Heidari H, Baghbanian SM, Kamali H, Ameli Z, Shahmohammadi S, Navardi S. Comparing infusion-related reactions of the first full dose (600 mg) biosimilar ocrelizumab administration with the standard divided protocol in multiple sclerosis patients: a randomized controlled trial study. Acta Neurol Belg 2024; 124:205-212. [PMID: 37715074 DOI: 10.1007/s13760-023-02366-z] [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: 01/31/2023] [Accepted: 08/16/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Ocrelizumab is a humanized antiCD20, thought to be a highly effective disease-modifying therapy (DMT). Its most frequent adverse effects are infusion-related reactions (IRRs). To reduce these reactions, the first dose of ocrelizumab is administered as two 300 mg infusions separated by two weeks. However, in the phase II trial of ocrelizumab, severe IRRs were not significantly different between two doses of 600 mg dose (two separate 300 mg doses) and 2000 mg dose (two separate 1000 mg doses). We compared the IRRs in undivided full (one 600 mg) and divided (two 300 mg) doses of ocrelizumab which is the standard protocol. METHODS MS patients (relapsing or primary progressive MS) who are selected to receive ocrelizumab by neurologist or MS fellowship were enrolled in an open-label randomized controlled trial. Iranian biosimilar of the drug (Xacrel® by Cinnagen, approved by the Iranian Food and Drug Administration in 2021) was used. The participants received the first dose of ocrelizumab as either one 600 mg dose in one session or two 300 mg doses in two weeks apart. IRRs during or in the first 24 h after infusion were recorded. RESULTS Of 332 participants, 150 received two 300 mg doses, and 182 received one 600 mg dose (by random selection). Life-threatening adverse effects were not observed in both groups. Overnight admission or permanent drug discontinuation was not needed. Temporary drug discontinuation was significantly higher in the one 600 mg dose group (p-value < 0.001). During the infusions, malaise (p-value: 0.003), skin reactions (p-value: 0.04), throat swelling (p-value: 0.03), and dyspnea (p-value: 0.01) were significantly increased in the intervention group. However, in the first 24 h, there was no significant difference between two different treatment protocols (one 600 mg dose or two 300 mg doses) in the onset of IRRS (p-value: 0.12). CONCLUSION These findings suggest one 600 mg dose of ocrelizumab administration for the first dose is relatively safe. With some protocol modifications, it could lead to fewer patient referrals, saving time and cost and improvement the access for patients.
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Affiliation(s)
- Naghmeh Abbasi Kasbi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - F Ghadiri
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - M A Sahraian
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - M A Nahayati
- Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - M Poursadeghfard
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Hosseini
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - H Heidari
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S M Baghbanian
- Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - H Kamali
- Neurology Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Z Ameli
- Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - S Shahmohammadi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S Navardi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Mohammadzadeh Kosari H, Kiamanesh Z, Sadeghi R, Kamali H, Aryana K. Interesting Findings in 68 Ga-FAPI-46 PET/CT Imaging in a Patient With Glioblastoma Multiforme. Clin Nucl Med 2023; 48:e126-e127. [PMID: 36692952 DOI: 10.1097/rlu.0000000000004504] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 01/25/2023]
Abstract
ABSTRACT A 55-year-old disabled man with glioblastoma multiforme was referred to us for fibroblast activation protein inhibitor (FAPI) PET/CT imaging. 68 Ga-DOTA-FAPI-46 scan revealed uptake in the primary tumor and unexpected uptakes in soft tissue, especially in periarticular regions. These latter foci were compatible with calcifications on the CT. One in the breast was compatible with fibrotic tissue, but 2 other foci, in the rectus abdominis and gallbladder wall, could not be correlated with the CT findings. In Neurogenic heterotopic ossification, hypoxia-associated oxidative stress results in the metaplastic transformation of fibroblasts. Abnormal differentiation of fibroblasts in neurogenic heterotopic ossification before ossification could explain radiolabeled FAPI avidity in the mentioned areas.
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Affiliation(s)
| | - Zahra Kiamanesh
- From the Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad
| | - Ramin Sadeghi
- From the Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad
| | | | - Kamran Aryana
- From the Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad
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Kwatra S, Alphonse M, Parthasarathy V, Deng J, Lee K, Stander S, Piketty C, Tille L, Kamali H, Krishnaswamy J, Julia V. 314 Mass spectrometry-based plasma proteomics analysis reveals IL-31 inhibition modulates cutaneous and systemic inflammation in prurigo nodularis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.322] [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: 10/17/2022]
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Mir Mohammad Rezaei S, Geramipanah F, Kamali H, Sadighpour L, Payaminia L. Effect of Arch Size and Implant Angulations on the Accuracy of Implant Impressions. Eur J Prosthodont Restor Dent 2021; 29:218-222. [PMID: 33934578 DOI: 10.1922/ejprd_2274mirmohammadrezaei05] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
PURPOSE To evaluate the effects of arch size and implant angulation on the accuracy of implant impressions. MATERIALS AND METHODS Four different resin models (small and large) of edentulous maxilla were fabricated and four implants were inserted (Blossom®, ø 4.75 × 10 mm) in each model. Implants were either parallel or angled 25° buccally. Forty working casts (small parallel, small angled, large parallel, and large angled) were fabricated in dental stone (n=10). For each implant, linear and angular displacements were measured using a coordinate-measuring machine (CMM) and mean values were analyzed by univariate analysis (α = 0.05). RESULTS Arch size did not affect the linear or angular displacement (P ⟩ .05). However, the implant angulation had a marked influence on the linear displacement (P ⟨ .05). The largest linear displacement occurred in implant no. 4 of angled small groups. CONCLUSION Regardless of arch size, linear and angular accuracy of implant impression varied with the implant angulation.
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Affiliation(s)
- S Mir Mohammad Rezaei
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - F Geramipanah
- Professor, Dental Implant Research Center, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - H Kamali
- DDS, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - L Sadighpour
- Associate Professor, Department of Prosthodontics, Dental Implant Research Center, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - L Payaminia
- Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Assadi M, Rekabpour SJ, Jafari E, Divband G, Nikkholgh B, Amini H, Kamali H, Ebrahimi S, Shakibazad N, Jokar N, Nabipour I, Ahmadzadehfar H. Feasibility and Therapeutic Potential of 177Lu-Fibroblast Activation Protein Inhibitor-46 for Patients With Relapsed or Refractory Cancers: A Preliminary Study. Clin Nucl Med 2021; 46:e523-e530. [PMID: 34269729 DOI: 10.1097/rlu.0000000000003810] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Fibroblast activation protein (FAP) is a member of the serine protease family and has a high expression in the stroma of approximately 90% of epithelial malignancies. The present investigation aimed to assess the feasibility, safety, and dosimetry data of 177Lu-FAPI-46 in diverse malignancies. PATIENTS AND METHODS Patients with advanced cancers with nonoperable tumors, or tumors refractory to conventional therapies, were enrolled. Treatment included escalating doses of 177Lu-FAPI-46 (1.85-4.44 GBq) per cycle using a combination of clinical and statistical expertise design, and intervals of 4 to 6 weeks were considered between the cycles. Biodistribution and dosimetry were examined by whole-body scans. We applied the National Cancer Institute Common Terminology Criteria for Adverse Events version 4.03 to measure peptide-targeted radionuclide therapy (PTRT)-associated toxicity. RESULTS A total of 21 patients (11 females and 10 males) with a median age of 50 years (range, 6-79 years) were investigated. Of 21 participants, 18 cases were selected for PTRT. Overall, 36 PTRT cycles were performed. The median number of PTRT cycles and the median injected amount of activity in each cycle were 2 and 3.7 GBq, respectively. The dosimetric analysis revealed median absorbed doses of 0.026, 0.136, 0.886, and 0.02 with ranges of 0.023-0.034, 0.001-0.2, 0.076-1.39, and 0.002-0.2 mGy/MBq for the whole body, liver, kidneys, and spleen, respectively. The therapy was well tolerated in almost all patients. CONCLUSIONS The findings of this preliminary investigation might indicate the potential feasibility and safety of PTRT using 177Lu-FAPI-46 for different aggressive tumors. Moreover, the current study could be beneficial in determining the suitable amount of activity for a phase 2 study.
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Affiliation(s)
- Majid Assadi
- From the The Persian Gulf Nuclear Medicine Research Center, Department of Molecular Imaging and Radionuclide Therapy, Bushehr Medical University Hospital, School of Medicine, Bushehr University of Medical Sciences
| | | | - Esmail Jafari
- From the The Persian Gulf Nuclear Medicine Research Center, Department of Molecular Imaging and Radionuclide Therapy, Bushehr Medical University Hospital, School of Medicine, Bushehr University of Medical Sciences
| | | | | | | | | | - Sakineh Ebrahimi
- Division of Oncology, Department of Internal Medicine, Loghman Hospital, Shahid Beheshti University of Medical Sciences, Tehran
| | - Nader Shakibazad
- Division of Hematology/Oncology, Department of Pediatrics, Bushehr Medical University Hospital, School of Medicine, Bushehr University of Medical Sciences
| | - Narges Jokar
- From the The Persian Gulf Nuclear Medicine Research Center, Department of Molecular Imaging and Radionuclide Therapy, Bushehr Medical University Hospital, School of Medicine, Bushehr University of Medical Sciences
| | - Iraj Nabipour
- The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
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Mir Mohammad Rezaei S, Geramipanah F, Kamali H, Sadighpour L, Payaminia L. Effect of Arch Size and Implant Angulations on the Accuracy of Implant Impressions. Eur J Prosthodont Restor Dent 2021. [PMID: 33934578 DOI: 10.1922/ejprd_2263mirmohammadrezaei06] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To evaluate the effects of arch size and implant angulation on the accuracy of implant impressions. MATERIALS AND METHODS Four different resin models (small and large) of edentulous maxilla were fabricated and four implants were inserted (Blossom®, ø 4.75 × 10 mm) in each model. Implants were either parallel or angled 25° buccally. Forty working casts (small parallel, small angled, large parallel, and large angled) were fabricated in dental stone (n=10). For each implant, linear and angular displacements were measured using a coordinate-measuring machine (CMM) and mean values were analyzed by univariate analysis (α = 0.05). RESULTS Arch size did not affect the linear or angular displacement (P ⟩ .05). However, the implant angulation had a marked influence on the linear displacement (P ⟨ .05). The largest linear displacement occurred in implant no. 4 of angled small groups. CONCLUSION Regardless of arch size, linear and angular accuracy of implant impression varied with the implant angulation.
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Affiliation(s)
- S Mir Mohammad Rezaei
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - F Geramipanah
- Professor, Dental Implant Research Center, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - H Kamali
- DDS, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - L Sadighpour
- Associate Professor, Department of Prosthodontics, Dental Implant Research Center, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - L Payaminia
- Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Kamali H, Khodaverdi E, Hadizadeh F. Ring-opening polymerization of PLGA-PEG-PLGA triblock copolymer in supercritical carbon dioxide. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2018.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Kamali H, Khodaverdi E, Hadizadeh F, Ghaziaskar S. Optimization of phenolic and flavonoid content and antioxidants capacity of pressurized liquid extraction from Dracocephalum kotschyi via circumscribed central composite. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2015.09.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Mohammadi A, Sani TA, Ameri AA, Imani M, Golmakani E, Kamali H. Seasonal variation in the chemical composition, antioxidant activity, and total phenolic content of Artemisia absinthium essential oils. Pharmacognosy Res 2015; 7:329-34. [PMID: 26692746 PMCID: PMC4660511 DOI: 10.4103/0974-8490.158441] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The genus Artemisia belonging to the Compositae (Asteraceae) family and many traditional uses from the Artemisia species were reported. Artemisia absinthium is one of the species in this genus and commonly used in the food industry in the preparation of aperitifs, bitters, and spirits. OBJECTIVE Evaluation of the effect of different harvesting stages on the composition of essential oil and antioxidant capacity of A. absinthium. MATERIALS AND METHODS Essential oils from the aerial parts of A. absinthium, collected in three stages (preflowering, flowering, and after-flowering) from plants grown in the North Khorasan province of Iran were obtained by steam distillation and the chemical composition of the oils was analyzed by gas chromatography-mass spectrometry and antioxidant activity and total phenolic content were determined by 2-diphenyl-1-picrylhydrazyl assay and Folin-Ciocalteu method. RESULTS Analysis of the isolated oils revealed the presence of 44 compounds, mainly alpha-pinene, sabinene, beta-pinene, alpha-phellandrene, p-cymene and chamazulene. Alpha-phellandrene, and chamazulene were major compounds in preflowering stage, but beta-pinene and alpha-phellandrene were major in flowering and past-flowering stages. Flowering stage had highest yield and after flowering stage had lowest yield. The essential oil of preflowering stage had the highest amount of antioxidant compound (chamazulene). Preflowering stage with highest amount of phenolic compounds had the strongest antioxidant activity with the lowest amount of EC50. CONCLUSION This study showed that the harvesting stage had significant effects on chemical composition and antioxidant properties of essential oils, and chamazulene is main compound for antioxidant activity in A. absinthium.
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Affiliation(s)
- A Mohammadi
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - T Ahmadzadeh Sani
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - A A Ameri
- Northern Khorasan Agricultural and Natural Resources Research Center, Bojnurd, Iran
| | - M Imani
- Northern Khorasan Agricultural and Natural Resources Research Center, Bojnurd, Iran
| | - E Golmakani
- Faculty of Medicine, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - H Kamali
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran ; Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Golmakani E, Mohammadi A, Ahmadzadeh Sani T, Kamali H. Phenolic and flavonoid content and antioxidants capacity of pressurized liquid extraction and perculation method from roots of Scutellaria pinnatifida A. Hamilt. subsp alpina (Bornm) Rech. f. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.09.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ahmadzadeh Sani T, Golmakani E, Mohammadi A, Feyzi P, Kamali H. Optimization of pressurized hot water extraction on the extract yield and antioxidant activity from Biebersteinia multifida DC using a modified supercritical fluid extractor. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.07.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kamali H, Golmakani E, Golshan A, Mohammadi A, Sani TA. Optimization of ethanol modified supercritical carbon dioxide on the extract yield and antioxidant activity from Biebersteinia multifida DC. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rashidi Fakari F, Tabatabaee Chehr M, Rashidi Fakari F, Mortazavi H, Kamali H, Tayebi V. Effects of aromatherapy on pain of labor in nulliparous women. ACTA ACUST UNITED AC 2013. [DOI: 10.29252/jnkums.5.2.359] [Citation(s) in RCA: 3] [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: 10/31/2022]
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Daneshvar M, Kamali H, Masoomi M, Ghaziaskar H. Supercritical carbon dioxide grafting of glycidyl methacrylate onto medium density polyethylene and purification of residual monomer and initiator. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2012.05.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ghoreishi SM, Kamali H, Ghaziaskar HS, Dadkhah AA. Optimization of Supercritical Extraction of Linalyl Acetate from Lavender via Box-Behnken Design. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201100429] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kamali H, Ghaziaskar H. Pressurized hot water extraction of benzoic acid and phthalic anhydride from petrochemical wastes using a modified supercritical fluid extractor and a central composite design for optimization. J Supercrit Fluids 2010. [DOI: 10.1016/j.supflu.2010.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Abstract
Dexamethasone concentration was measured in plasma and amniotic fluid by radioimmunoassay using a rabbit antiserum raised against DX-hemisuccinate-albumin. Recoveries of added tracers averaged 70% after paper chromatography. The within- and between-assay coefficients of variation averaged 10%. The lower limit of detection was 0.2 mug/dl when 0.4 ml of plasma was assayed. Ten healthy pregnant women at term had cesarean sections 8 to 11 hours following administration of 8 mg of DX orally. DX levels in maternal vein, in umbilical vein and artery, and in amniotic fluid averaged 2.2, 2.9, 2.6, and 2.5 mug/dl, respectively. Although cortisol levels were markedly suppressed, the total relative glucocorticoid activity in blood of fetuses treated with DX far exceeded that of the untreated group.
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