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Stüben BO, Ahmadi S, Saner FH, Li J, Neuhaus JP, Treckmann JW, Hoyer DP. The significance of resection margins on R0 results in intrahepatic cholangiocarcinoma. Surg Oncol 2024; 53:102058. [PMID: 38431994 DOI: 10.1016/j.suronc.2024.102058] [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] [Received: 10/02/2023] [Revised: 02/01/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Intrahepatic cholangiocarcinoma is the second most common primary liver cancer after hepatocellular carcinoma with an increasing incidence worldwide. Surgical resection is still the only potential cure, and survival rates are dismal due to disease relapse after resection and/or metastatic disease. Positive resection margins are associated with recurrence, with conflicting studies regarding the benefits of wide resection margins to reduce recurrence rates. METHODS 126 patients with an R0 resection treated with hepatic surgery for intrahepatic cholangiocarcinoma at the Surgical Department at the Medical University Centre Essen, Germany were identified in a database and retrospectively analysed. Patients were grouped into three groups according to margin width, <1 mm (very narrow margin width) 1-5 mm (narrow margin width) and >5 mm (wide margin width). Epidemiological as well as perioperative data was analysed, and a univariate analysis as well as Kaplan-Meier plots carried out to investigate recurrence-free and overall survival. RESULTS Wider resection margins did not lead to better recurrence-free survival. A wider resection margin >5 mm was not significantly associated with improved overall survival. Positive lymph nodes (HR 2.50, 95% CI 1.11-5.61, p=0.027) and non-anatomic resections (HR 2.06, 95% CI 1.13-3.75, p=0.019) are significantly associated with poorer overall survival. Regarding recurrence-free survival, V2 vascular invasion was the only risk factor statistically significantly associated with poorer recurrence-free survival (HR 8.83, 95% CI 0.85-2.83, p=0.005). CONCLUSION Resection margins did not have a significant impact on disease free survival or overall survival following hepatic resection for intrahepatic cholangiocarcinoma. Non-anatomical resections, lymph node and vascular invasion all significantly impacted oncological outcomes.
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Affiliation(s)
- B O Stüben
- Department of General-, Visceral- and Transplant Surgery, Medical Centre University Duisburg-Essen, 45147, Essen, Germany.
| | - S Ahmadi
- Department of General-, Visceral- and Transplant Surgery, Medical Centre University Duisburg-Essen, 45147, Essen, Germany
| | - F H Saner
- Department of General-, Visceral- and Transplant Surgery, Medical Centre University Duisburg-Essen, 45147, Essen, Germany; Organ Transplant Center of Excellence, King Faisal Specialist Hospital & Research Center, Riyadh, Kingdom of Saudi Arabia
| | - J Li
- Department of Surgery, Jiahui International Hospital, Shanghai, China
| | - J P Neuhaus
- Department of General-, Visceral- and Transplant Surgery, Medical Centre University Duisburg-Essen, 45147, Essen, Germany
| | - J W Treckmann
- Department of General-, Visceral- and Transplant Surgery, Medical Centre University Duisburg-Essen, 45147, Essen, Germany
| | - D P Hoyer
- Department of General-, Visceral- and Transplant Surgery, Medical Centre University Duisburg-Essen, 45147, Essen, Germany
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Ahmadi S, Mehrabi Z, Zare M, Ghadir S, Masoumi SJ. Efficacy of Nanocurcumin as an Add-On Treatment for Patients Hospitalized with COVID-19: A Double-Blind, Randomized Clinical Trial. Int J Clin Pract 2023; 2023:5734675. [PMID: 37547100 PMCID: PMC10403319 DOI: 10.1155/2023/5734675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/20/2023] [Accepted: 07/16/2023] [Indexed: 08/08/2023] Open
Abstract
Background Curcumin is a polyphenol derivative of the Curcuma longa rhizome, with potential antioxidant, anticancer, antidepressant, antiviral, and anti-inflammatory effects. This compound can be prepared as biodegradable polymer nanoparticles, called nanocurcumin, to improve its solubility, stability, half-life, and bioavailability. Aim We explored nanocurcumin's effect on the clinical manifestations of patients hospitalized with mild-to-moderate COVID-19. Methods This double-blind, randomized clinical trial involved 76 COVID-19 patients admitted to Ali-Asghar Hospital from December 2021 to March 2022. All patients received standard coronavirus treatment as per national guidelines. In addition, four times a day for two weeks, the curcumin group received 40 mg of nanocurcumin, while the control group received a placebo. Clinical manifestations were examined and recorded by the associate doctors working in the department. Statistical analysis was done using SPSS v. 21. Results Thirty-nine people from the control group and 29 from the curcumin group completed the study. At baseline, the groups were comparable in age, gender, body mass index, hospitalization duration, and background diseases. The mean age of patients in the control and treatment groups was 53.9 ± 11.9 and 54.6 ± 13.4, respectively. Compared with the placebo, nanocurcumin minimized coughs (P=0.036), fatigue (P=0.0001), myalgia (P=0.027), oxygen demand (P=0.036), oxygen usage (P=0.05), and respiratory rate (P < 0.0001). By discharge, the curcumin group had a significantly greater increase in SPO2 than the control group (P=0.006). Conclusions This preliminary study suggests that nanocurcumin has a potentiating anti-inflammatory effect when combined with standard COVID-19 treatment, helping the recovery from the acute inflammatory phase of the disease in hospitalized patients with mild-to-moderate disease severity. This trial is registered with Iranian Registry of Clinical Trials: IRCT20211126053183N1 (registered while recruiting on 13/12/2021).
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Affiliation(s)
- Sedigheh Ahmadi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zeinab Mehrabi
- Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Morteza Zare
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sara Ghadir
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Jalil Masoumi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Cohort Study of SUMS Employees' Health, Shiraz University of Medical Sciences, Shiraz, Iran
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Ahmadi S, Mosavari N, Tebianian M. Comparative Evaluation of Specific Antibody against Mycobacterium tuberculosis ESAT-6 Recombinant Antigen in Healthy Subject with Positive and Negative Skin Test. Arch Razi Inst 2023; 78:815-821. [PMID: 38028850 PMCID: PMC10657930 DOI: 10.22092/ari.2022.360063.2543] [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] [Received: 09/18/2022] [Accepted: 10/03/2022] [Indexed: 12/01/2023]
Abstract
Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis (M. tuberculosis). The laboratory diagnosis of the disease includes various bacteriologic and immunologic methods. Despite the effectiveness of many of these methods in diagnosing active TB, their high cost and time-consuming nature have led researchers to adopt more accurate and rapid screening methods based on specific antigens for M. tuberculosis. The present study aimed to measure specific antibody serum levels against the early secretory antigenic target 6 kDa (ESAT-6) recombinant protein in healthy people and compare it to TB patients. The target population included 27 TB patients and 87 healthy individuals with no clinical TB symptoms. The healthy population was divided into two groups, including positive purified protein derivative (PPD) and negative PPD (35 and 52 people, respectively), using the Tuberculin skin test. The specific antibody level against the ESAT-6 recombinant antigen and the PPD protein was measured using an indirect Enzyme-Linked Immunosorbent Assay (ELISA) test. The results of the study showed that the majority of the healthy population with no symptoms of clinical TB and having negative skin test results did not have antibodies against the recombinant ESAT-6 (98%) and PPD (96%) antigens. On the other hand, there was a high level of the specific antibody of the ESAT-6 recombinant and PPD antigens in TB patients (77%). It is notable that in people with positive skin test results, the level of the antibody against the ESAT-6 recombinant antigen and PPD antigen was 94%. The results demonstrated that the ELISA method based on the measurement of antibodies against the ESAT-6 recombinant antigen can be a proper diagnostic method for rapid and accurate screening of healthy from infected people.
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Affiliation(s)
- S Ahmadi
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - N Mosavari
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - M Tebianian
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
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Khademi S, Jouybar R, Ahmadi S, Asmarian N, Ghadimi M, Salari M, Emami S. Hemodynamic Changes After Continuing or Omitting Regular Angiotensin Converting Enzyme Inhibitors Before Cataract Surgery: A Comparative Study. Curr Hypertens Rev 2023; 19:59-65. [PMID: 36635901 DOI: 10.2174/1573402119666230112110328] [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: 06/27/2022] [Revised: 12/02/2022] [Accepted: 12/07/2022] [Indexed: 01/14/2023]
Abstract
PURPOSE In this study, we aimed to appraise the effects of interrupting (discontinuing) vs. continuing Angiotensin receptor blockers (ARBs) and Angiotensin-Converting Enzyme Inhibitors (ACEIs) on the hemodynamic changes of patients during and after cataract surgery. METHODS AND MATERIALS Patients aged 40-70 years, American society of anesthesiologist (ASA)class II, taking ACEI/ARB medications, who were admitted to Khalili hospital (Shiraz, south of Iran) for cataract surgery, were enrolled in the study. Patients were randomly divided into two groups for continuing or withdrawing the use of ACEI/ARBs. Group 1 included the patients who continued ACEI/ARB administration, and group 2 included those who discontinued them before surgery. In the operating room, relevant demographic information was collected in addition to the data on patients' basic clinical status, including heart rate and blood pressure, before induction of anesthesia, during, and after that. The collected data were analyzed using SPSS 21, and p-values < 0.05 were considered statistically significant. RESULTS Any significant differences were not revealed in demographic variables (age, sex, diabetes, hypertension, Myocardial infarction, Smoking, and duration of drug therapy) between the two groups. Time effect was significant (p<0.001) for systolic blood pressure, diastolic blood pressure, and heart rate, and interaction between time*group was not significant (p=0.431, p=0.566, and 0.355) for systolic blood pressure, diastolic blood pressure, and heart rate. However, the group effect wasn't significant (p=0.701, p=0.663, and p=0.669) for systolic blood pressure, diastolic blood pressure, and heart rate. CONCLUSION It seems that in some minor surgeries, such as cataract surgery, withdrawal or continuation of ACEIs/ARBs have no significant effect on the hypotension and heart rate of patients during or after an operation.
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Affiliation(s)
- Saeed Khademi
- Department of Anesthesiology Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jouybar
- Department of Anesthesiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sedigheh Ahmadi
- Shiraz University of Medical Sciences Department of Anesthesiology Shiraz Iran
| | | | - Maryam Ghadimi
- Shiraz University of Medical Sciences Department of Anesthesiology Shiraz Iran
| | - Mehrdad Salari
- Shiraz University of Medical Sciences Department of Anesthesiology Shiraz Iran
| | - Soodabeh Emami
- Shiraz University of Medical Sciences Department of Anesthesiology Shiraz Iran
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Vakil MK, Mansoori Y, Al‐Awsi GRL, Hosseinipour A, Ahsant S, Ahmadi S, Ekrahi M, Montaseri Z, Pezeshki B, Mohaghegh P, Sohrabpour M, Bahmanyar M, Daraei A, Dadkhah Jouybari T, Tavassoli A, Ghasemian A. Individual genetic variability mainly of Proinflammatory cytokines, cytokine receptors, and toll-like receptors dictates pathophysiology of COVID-19 disease. J Med Virol 2022; 94:4088-4096. [PMID: 35538614 PMCID: PMC9348290 DOI: 10.1002/jmv.27849] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 11/12/2022]
Abstract
Innate and acquired immunity responses are crucial for viral infection elimination. However, genetic variations in coding genes may exacerbate the inflammation or initiate devastating cytokine storms which poses severe respiratory conditions in coronavirus disease-19 (COVID-19). Host genetic variations in particular those related to the immune responses determine the patients' susceptibility and COVID-19 severity and pathophysiology. Gene polymorphisms such as single nucleotide polymorphisms (SNPs) of interferons, TNF, IL1, IL4, IL6, IL7, IL10, and IL17 predispose patients to the severe form of COVID-19 or severe acute respiratory syndrome coronavirus-2 (SARS-COV-2). These variations mainly alter the gene expression and cause a severe response by B cells, T cells, monocytes, neutrophils, and natural killer cells participating in a cytokine storm. Moreover, cytokines and chemokines SNPs are associated with the severity of COVID-19 and clinical outcomes depending on the corresponding effect. Additionally, genetic variations in genes encoding toll-like receptors (TLRs) mainly TLR3, TLR7, and TLR9 have been related to the COVID-19 severe respiratory symptoms. The specific relation of these mutations with the novel variants of concern (VOCs) infection remains to be elucidated. Genetic variations mainly within genes encoding proinflammatory cytokines, cytokine receptors, and TLRs predispose patients to COVID-19 disease severity. Understanding host immune gene variations associated with the SARS-COV-2 infection opens insights to control the pathophysiology of emerging viral infections.
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Affiliation(s)
- Mohammad Kazem Vakil
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Yaser Mansoori
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Ghaidaa Raheem Lateef Al‐Awsi
- University of Al‐QadisiyahCollege of ScienceAl DiwaniyahIraq
- Department of Radiological TechniquesAl‐Mustaqbal University CollegeBabylonIraq
| | - Ali Hosseinipour
- Department of Internal MedicineFasa University of Medical SciencesFasaIran
| | - Samaneh Ahsant
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Sedigheh Ahmadi
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Mohammad Ekrahi
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Zahra Montaseri
- Department of Infectious DiseasesFasa University of Medical SciencesFasaIran
| | - Babak Pezeshki
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Poopak Mohaghegh
- Pediatrics Department, School of MedicineFasa University of Medical SciencesFasaIran
| | - Mojtaba Sohrabpour
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Maryam Bahmanyar
- Pediatrics Department, School of MedicineFasa University of Medical SciencesFasaIran
| | - Abdolreza Daraei
- Department of Medical Genetics, School of MedicineBabol University of Medical SciencesBabolIran
| | | | | | - Abdolmajid Ghasemian
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
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Ahmadi S, Dayyani M, Etemadrezaie H, Bateni F, Mohabbati H, Pooyan A, Zabihyan S. Diaphragma sellae orifice ratio, is it an applicable anatomical index to determine the direction of the growth of pituitary macroadenomas? Interdisciplinary Neurosurgery 2022. [DOI: 10.1016/j.inat.2022.101547] [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: 10/18/2022] Open
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7
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Ahmadi S, Firoozi D, Dehghani M, Zare M, Mehrabi Z, Ghaseminasab-Parizi M, Masoumi SJ. Evaluation of Nutritional Status of Intensive Care Unit COVID-19 Patients Based on the Nutritional Risk Screening 2002 Score. Int J Clin Pract 2022; 2022:2448161. [PMID: 36320896 PMCID: PMC9592191 DOI: 10.1155/2022/2448161] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/21/2022] [Accepted: 10/12/2022] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Patients with COVID-19 are susceptible to malnutrition, which is particularly concerning among critically ill patients. We evaluated the Nutritional Risk Screening 2002 (NRS-2002) score in such patients and determined its relationship with the hospitalization outcome. METHODS This cross-sectional study involved COVID-19 patients admitted to the intensive care units (ICUs) of Shahid Faghihi Hospital, Shiraz, Iran, between February and March 2021. We assessed the nutritional status using NRS-2002 and determined disease severity with the APACHE II index. Demographic information, weight, height, clinical signs, previous illness, medications, biochemical test results, and history of anorexia and weight loss were recorded. Data were analyzed using SPSS version 18. RESULTS The mean age of 100 patients was 55.36 ± 18.86 years. According to NRS-2002, 30%, 29%, and 41% of patients were at low risk, moderate risk, and high risk of malnutrition, respectively. Age and BUN increased significantly with NRS-2002, while albumin and hematocrit followed the opposite trend (P < 0.001). Patients who died had lower albumin and hematocrit levels but higher age, NRS-2002 scores, and BUN/creatinine levels than those who recovered. Multivariable logistic regression revealed that for every unit increase in the NRS-2002 score, the odds of mortality increased by 354% (OR: 4.54, CI: 1.48, 13.95, P=0.008). CONCLUSION NRS-2002 is a valuable prognostic tool for critically ill COVID-19 patients, with each unit's rise in the score being associated with a 354% rise in the odds of mortality. Increased malnutrition risk was linked with higher age and BUN and lower albumin and hematocrit levels.
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Affiliation(s)
- Sedigheh Ahmadi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Donya Firoozi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Dehghani
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Morteza Zare
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zeinab Mehrabi
- Department of Internal Disaease, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Ghaseminasab-Parizi
- Department of Health Education and Health Promotion, School of Health, Occupational Environment Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Seyed Jalil Masoumi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Cohort Study of SUMS Employees' Health, Shiraz University of Medical Sciences, Shiraz, Iran
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Ahmadi S, Lotfi S, Afshari S, Kumar P, Ghasemi E. CORAL: Monte Carlo based global QSAR modelling of Bruton tyrosine kinase inhibitors using hybrid descriptors. SAR QSAR Environ Res 2021; 32:1013-1031. [PMID: 34875951 DOI: 10.1080/1062936x.2021.2003429] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
Global QSAR modelling was performed to predict the pIC50 values of 233 diverse heterocyclic compounds as BTK inhibitors with the Monte Carlo algorithm of CORAL software using the DCW hybrid descriptors extracted from SMILES notations of molecules. The dataset of 233 BTK inhibitors was randomly split into training, invisible training, calibration and validation sets. The index of ideality of correlation was also applied to build and judge the predictability of the QSAR models. Eight global QSAR models based on the hybrid optimal descriptor using two target functions, i.e. TF1 (WIIC = 0) and TF2 (WIIC = 0.2) have been constructed. The statistical parameters of QSAR models computed by TF2 are more reliable and robust and were used to predict the pIC50 values. The model constructed for split 4 via TF2 is regarded as the best model and the numerical values of r2Train, r2Valid, Q2Train and Q2Valid are equal to 0.7981, 0.7429, 0.7898 and 0.6784, respectively. By internal and external validation techniques, the predictability and reliability of the designed models have been assessed. The structural attributes responsible for the increase and decrease of pIC50 of BTK inhibitors were also identified.
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Affiliation(s)
- S Ahmadi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - S Lotfi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - S Afshari
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - P Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - E Ghasemi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Ahmad S, Hossain MN, Ahmadi S, Kerman K, Kraatz HB. Electrochemical distinction of neuronal and neuroblastoma cells via the phosphorylation of the cellular extracellular membrane. Anal Biochem 2021; 645:114434. [PMID: 34785194 DOI: 10.1016/j.ab.2021.114434] [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: 09/01/2020] [Revised: 10/10/2021] [Accepted: 10/21/2021] [Indexed: 11/20/2022]
Abstract
In this contribution we establish a proof of concept method for monitoring, quantifying and differentiating the extracellular phosphorylation of Human SHSY5Y undifferentiated neuronal cells and neuroblastoma cells by three prominent ectokinases PKA, PKC and Src. Herein it is demonstrated that a combination of different experimental techniques, including fluroesence microscopy, quartz crystal microscopy (QCM) and electrochemistry, can be used to detect extracellular phosphorylation levels of neuronal and neuroblastoma cells. Phosphorylation profiles of the three ectokinases, PKA, PKC and Src, were investigated using fluorescence microscopy and the number of phosphorylation sites per kinase was estimated using QCM. Finally, the phosphorylation of the extracellular membrane was determined using electrochemistry. Our results clearly demonstrate that the extracellular phosphorylation of neuronal cells differs significantly in terms of its phosphorylation profile from diseased neuroblastoma cells and the strength of surface electrochemical techniques in the differentiation process. We reveal that using electrochemistry, the percent compositions of neuronal and neuroblastoma cells can also be identified.
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Affiliation(s)
- S Ahmad
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - M N Hossain
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - S Ahmadi
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - K Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - H-B Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada.
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Ahmadi S, Ashrafi S, Yazdansetad F, Roshanshah N, Tarim UA, Gurler O. A computational modelling of low-energy gamma ray detection efficiency of a cylindrical NaI(Tl) detector. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109581] [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: 10/21/2022]
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11
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Ghiasi T, Ahmadi S, Ahmadi E, Talei Bavil Olyai MR, Khodadadi Z. The index of ideality of correlation: QSAR studies of hepatitis C virus NS3/4A protease inhibitors using SMILES descriptors. SAR QSAR Environ Res 2021; 32:495-520. [PMID: 34074200 DOI: 10.1080/1062936x.2021.1925344] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Robust and reliable QSAR models were developed to predict half-maximal inhibitory concentration (IC50) values of hepatitis C virus NS3/4A protease inhibitors from the Monte Carlo technique. 524 HCV NS3/4A protease inhibitors were extracted from the scientific literature to create a reasonably large set. The models were developed using CORAL software by using two target functions namely target function 1 (TF1) without applying the index of ideality of correlation (IIC) and target function 2 (TF2) that uses IIC. The constructed models based on TF2 were statistically more significant and robust than the models based on TF1. The determination coefficients (r2) of training and test sets were 0.86 and 0.88 for the best split based on TF2. The promoters of the increase/decrease of activity were also extracted and interpreted in detail. The model interpretation results explain the role of different structural attributes in predicting the pIC50 values of hepatitis C virus NS3/4A protease inhibitors. Based on the mechanistic model interpretation results, eight new compounds were designed and their pIC50 values were predicted based on the average prediction of ten models.
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Affiliation(s)
- T Ghiasi
- Department of Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | - S Ahmadi
- Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - E Ahmadi
- Department of Chemistry, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - M R Talei Bavil Olyai
- Department of Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | - Z Khodadadi
- Department of Chemistry, Faculty of Science, Islamic Azad University, South Tehran Branch, Tehran, Iran
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Ahmadi S, Lotfi S, Kumar P. A Monte Carlo method based QSPR model for prediction of reaction rate constants of hydrated electrons with organic contaminants. SAR QSAR Environ Res 2020; 31:935-950. [PMID: 33179988 DOI: 10.1080/1062936x.2020.1842495] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
The Monte Carlo algorithm was applied to formulate a robust quantitative structure-property relationship (QSPR) model to compute the reactions rate constants of hydrated electron values for a data set of 309 water contaminants containing 125 aliphatic and 184 phenyl-based chemicals. The QSPR models were computed with the hybrid optimal descriptors which were procured by combining the SMILES and hydrogen-suppressed molecular graph for both classes of compounds. Approximately 75% of the total experimental data set was randomly divided into training and invisible training sets, while approximately 25% was divided into calibration and validation sets. The authenticity and robustness of the developed QSPR models were also judged by the Index of Ideality of Correlation. In QSPR modelling of aliphatic compounds, the numerical values of r T r a i n i n g 2 , r V a l i d a t i o n 2 , Q T r a i n i n g 2 and Q V a l i d a t i o n 2 were in the range of 0.852-0.905, 0.815-0.894, 0.839-0.897 and 0.737-0.867, respectively. Whereas, in the QSPR modelling of phenyl-based compounds, the numerical values of r T r a i n i n g 2 , r V a l i d a t i o n 2 , Q T r a i n i n g 2 and Q V a l i d a t i o n 2 were in the range of 0.867-0.896, 0.852-0.865, 0.816-0.850 and 0.760-0.762, respectively. The structural attributes, which are promoters of l o g K e a q - increase/decrease are also extracted from the SMILES notation for mechanistic interpretation. These QSPR models can also be applied to compute the reaction rate constants of organic contaminants.
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Affiliation(s)
- S Ahmadi
- Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University , Tehran, Iran
| | - S Lotfi
- Department of Chemistry, Payame Noor University (PNU) , Tehran, Iran
| | - P Kumar
- Department of Chemistry, Kurukshetra University , Kurukshetra, Haryana, India
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Javidfar M, Ahmadi S. QSAR modelling of larvicidal phytocompounds against Aedes aegypti using index of ideality of correlation. SAR QSAR Environ Res 2020; 31:717-739. [PMID: 32930630 DOI: 10.1080/1062936x.2020.1806922] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Aedes aegypti is the primary vector of several infectious viruses that cause yellow, dengue, chikungunya, and Zika fevers. Recently, plant-derived products have been tested as safe and eco-friendly larvicides against Ae. aegypti. The present study aimed to improve QSAR models for 62 larvicidal phytocompounds against Ae. aegypti via the Monte Carlo method based on the index of the ideality of correlation (IIC) criterion. The representation of structures was done with SMILES. Three splits were prepared randomly and three QSAR models were constructed using IIC target function. The molecular descriptors were selected from SMILES descriptors and the hydrogen-filled molecular graphs. The predictability of three models was evaluated on the validation sets, the r 2 of which was 0.9770, 0.8660, and 0.8565 for models 1 to 3, respectively. The statistical results of three randomized splits indicated that robust, simple, predictive, and reliable models were obtained for different sets. From the modelling results, important descriptors were identified to enhance and reduce the larvicidal activity of compounds. Based on the identified important descriptors, some new structures of larvicidal compounds were proposed. The larvicidal activity of novel molecules designed further was supported by docking studies. Using the simple QSAR model, one can predict pLC50 of new similarity larvicidal phytocompounds.
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Affiliation(s)
- M Javidfar
- Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University , Tehran, Iran
| | - S Ahmadi
- Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University , Tehran, Iran
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Ahmad S, Hossain MN, Ahmadi S, Kerman K, Kraatz HB. Electrochemical detection of neuronal extracellular phosphorylation by PKA, PKC and Src. Anal Biochem 2020; 608:113892. [PMID: 32810472 DOI: 10.1016/j.ab.2020.113892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 11/30/2022]
Abstract
The focus of this work described here is to establish a method for monitoring and quantifying the extracellular phosphorylation of Human SHSY5Y undifferentiated neuronal cells by three ectokinases PKA, PKC and Src; these are kinases that are known to be present in the extracellular matrix. Here is demonstrated that a combination of different experimental techniques, including microscopy and electrochemistry, can be used to detect extracellular phosphorylations. Phosphorylation profiles of the three ectokinases, PKA, PKC and Src, were investigated using fluorescence microscopy and the number of phosphorylation sites per kinase was estimated using QCM. Finally, the phosphorylation of the extracellular membrane was determined using electrochemistry. Our results clearly demonstrate the extracellular phosphorylation of neuronal cells and the strength of surface electrochemical techniques in the investigation of cellular phosphorylation.
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Affiliation(s)
- S Ahmad
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - M N Hossain
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - S Ahmadi
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - K Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - H-B Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada.
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Ashuri T, Armani A, Jalilzadeh Hamidi R, Reasnor T, Ahmadi S, Iqbal K. Biomedical soft robots: current status and perspective. Biomed Eng Lett 2020; 10:369-385. [PMID: 32864173 PMCID: PMC7438463 DOI: 10.1007/s13534-020-00157-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 04/02/2020] [Accepted: 04/18/2020] [Indexed: 12/13/2022] Open
Abstract
This paper reviews the current status of soft robots in biomedical field. Soft robots are made of materials that have comparable modulus of elasticity to that of biological systems. Several advantages of soft robots over rigid robots are safe human interaction, ease of adaptation with wearable electronics and simpler gripping. We review design factors of soft robots including modeling, controls, actuation, fabrication and application, as well as their limitations and future work. For modeling, we survey kinematic, multibody and numerical finite element methods. Finite element methods are better suited for the analysis of soft robots, since they can accurately model nonlinearities in geometry and materials. However, their real-time integration with controls is challenging. We categorize the controls of soft robots as model-based and model-free. Model-free controllers do not rely on an explicit analytical or numerical model of the soft robot to perform actuation. Actuation is the ability to exert a force using actuators such as shape memory alloys, fluid gels, elastomers and piezoelectrics. Nonlinear geometry and materials of soft robots restrict using conventional rigid body controls. The fabrication techniques used for soft robots differ significantly from that of rigid robots. We survey a wide range of techniques used for fabrication of soft robots from simple molding to more advanced additive manufacturing methods such as 3D printing. We discuss the applications and limitations of biomedical soft robots covering aspects such as functionality, ease of use and cost. The paper concludes with the future discoveries in the emerging field of soft robots.
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Affiliation(s)
- T. Ashuri
- Department of Mechanical Engineering, Arkansas Tech University, 1811 N Boulder Ave, Russellville, AR 72801 USA
| | - A. Armani
- Department of Mechanical Engineering, San Jose State University, 1 Washington Square, San Jose, CA 95112 USA
| | - R. Jalilzadeh Hamidi
- Department of Electrical Engineering, Arkansas Tech University, 1811 N Boulder Ave, Russellville, AR 72801 USA
| | - T. Reasnor
- Department of Mechanical Engineering, Arkansas Tech University, 1811 N Boulder Ave, Russellville, AR 72801 USA
| | - S. Ahmadi
- Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, 10815 Colonel Glenn Rd, Little Rock, AR 72204 USA
| | - K. Iqbal
- Department of Systems Engineering, University of Arkansas at Little Rock, 2801 S University Ave, Little Rock, AR 72204 USA
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Abstract
OBJECTIVE Brain computer interfaces (BCIs) are slowly making their appearance on the consumer market, accompanied by a higher popularity among the general public. This new group of users requires easy-to-use headsets with robustness to non-precise placement. In this paper, an optimized fixed montage EEG headset for VEP BCIs is proposed. APPROACH The proposed layout covers only the most relevant area with large sensors to account for slight misplacement. To obtain large sensors, without having them physically available, we tie multiple sensors together and simulate the effect by averaging the signal of multiple sensors. MAIN RESULTS In simulations based on recorded 256-channel EEG data, it is shown that a circular center-surround configuration with sensor tying, leading to only eight channels covering a large part of the occipital lobe, can provide high performance and good robustness to misplacement. Automatically optimized layouts were unable to achieve better performance, demonstrating the utility of this manual design. Finally, the performance and benefits of sensor tying in the manual design are then validated in a physical experiment. SIGNIFICANCE The resulting proposed layout fulfills most requirements of an easy to use consumer EEG headset.
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Affiliation(s)
- S Ahmadi
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
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Ahmadi S, Azhari SJ. A LP, Very High-CMRR, Wide-Bandwidth FDCCII-Based CMIA Adapted to Both Current and Voltage Inputs. Arab J Sci Eng 2019. [DOI: 10.1007/s13369-018-3601-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ahmadi S, Akbari A. Prediction of the adsorption coefficients of some aromatic compounds on multi-wall carbon nanotubes by the Monte Carlo method. SAR QSAR Environ Res 2018; 29:895-909. [PMID: 30332923 DOI: 10.1080/1062936x.2018.1526821] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
In this investigation, quantitative structure-property relationship (QSPR) modelling of adsorption coefficients of 69 aromatic compounds on multi-wall carbon nanotubes (MWCNTs) was studied using the Monte Carlo method. QSPR models were calculated with CORAL software, and optimal descriptors were calculated with the simplified molecular input line entry system (SMILES) and hydrogen-suppressed molecular graphs (HSGs). The aromatic compound data set was randomly split into training, invisible training, calibration and validation sets. Analysis of three probes of the Monte Carlo optimization with three random splits was done. The results from three random splits displayed robust, very simple, predictable and reliable models for the training, invisible training, calibration and validation sets with a coefficient of determination (r2) equal to 0.9463-0.8528, 0.9020-0.8324, 0.9606-0.9178 and 0.9573-0.8228, respectively. As a result, the models obtained help to identify the hybrid descriptors for the increase and the decrease of the adsorption coefficient of aromatic compounds on MWCNTs. This simple QSPR model can be used for the prediction of the adsorption coefficient of numerous aromatic compounds on MWCNTs.
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Affiliation(s)
- S Ahmadi
- a Department of Chemistry , Kermanshah Branch, Islamic Azad University , Kermanshah , Iran
| | - A Akbari
- a Department of Chemistry , Kermanshah Branch, Islamic Azad University , Kermanshah , Iran
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Sheikholeslami-Vatani D, Ahmadi S, Chehri B, Tadibi V. The effect of changes in concentric-eccentric contraction time ratio on hormonal response to resistance exercise in trained men. Sci Sports 2018. [DOI: 10.1016/j.scispo.2017.11.004] [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: 11/28/2022]
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Shokrollahi A, Ahmadi S. Determination of trace amounts of Brown HT as a food dye by a CPE-scanometry method. Journal of Taibah University for Science 2018. [DOI: 10.1016/j.jtusci.2016.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - S. Ahmadi
- Department of Chemistry, Yasouj University Yasouj Iran
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Anell-Olofsson M, Ahmadi S, Lönnqvist PA, Eksborg S, von Horn H, Bartocci M. Plasma concentrations of alpha-1-acid glycoprotein in preterm and term newborns: influence of mode of delivery and implications for plasma protein binding of local anaesthetics. Br J Anaesth 2018; 121:427-431. [PMID: 30032881 DOI: 10.1016/j.bja.2018.01.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 07/05/2017] [Revised: 12/08/2017] [Accepted: 02/07/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Alpha-1-acid glycoprotein (AAGP) is an acute-phase protein with high affinity for amide local anaesthetics (LAs), and a major determinant of free and potentially toxic concentrations of LAs in plasma. Neonates are known to have lower plasma concentrations of AAGP than adults, and are at risk of developing high free concentrations of LAs. Data regarding AAGP in newborns are so far sparse. The aim of this study was to determine plasma concentrations of AAGP after delivery of preterm and term infants, and to investigate correlations between AAGP and gestational age, birth weight, gender, and mode of delivery. METHODS In this prospective observational study, blood was sampled from umbilical cords of 70 newborn infants born at gestational weeks 27-42 immediately after delivery. Blood samples were subsequently analysed for AAGP plasma concentrations with an immunoturbidimetric assay. RESULTS We found higher concentrations of AAGP in infants born vaginally compared with those who were delivered by elective Caesarean section [median (inter-quartile range) 0.189 g litre-1 (0.142-0.263 g litre-1) vs 0.110 g litre-1 (0.094-0.157 g litre-1; P=0.0003)], respectively. There was a correlation between gestational age and AAGP concentrations (r=0.50; P=0.011), with significantly higher concentrations in the more mature infants. Gender and birth weight did not appear to influence the plasma concentrations of AAGP. CONCLUSIONS Alpha-1-acid glycoprotein concentrations in newborns are influenced both by gestational age and mode of delivery. Thus, when dosing local anaesthetics in a parturient, these factors should be taken into account.
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Affiliation(s)
- M Anell-Olofsson
- Department of Paediatric Anaesthesia, Intensive Care and ECMO Services, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Sweden.
| | - S Ahmadi
- Department of Women's and Children's Health, Karolinska Institutet, Sweden
| | - P A Lönnqvist
- Department of Paediatric Anaesthesia, Intensive Care and ECMO Services, Sweden; Department of Physiology and Pharmacology, Karolinska Institutet, Sweden
| | - S Eksborg
- Department of Women's and Children's Health, Karolinska Institutet, Sweden; Department of Paediatric Oncology, Sweden
| | - H von Horn
- Division of Clinical Chemistry, Department of Laboratory Medicine, Sweden
| | - M Bartocci
- Department of Women's and Children's Health, Karolinska Institutet, Sweden; Department of Neonatology, Karolinska University Hospital, Stockholm, Sweden
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Hosseinian A, Vessally E, Bekhradnia A, Ahmadi S, Kheirollahi Nezhad PD. Interaction of α-Cyano-4-hydroxycinnamic Acid Drug with Inorganic BN Nanocluster: A Density Functional Study. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0778-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mastikhin IV, Bade KM, Ahmadi S. A rapid magnetization preparation for MRI measurements of sprays. J Magn Reson 2017; 283:52-60. [PMID: 28881233 DOI: 10.1016/j.jmr.2017.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/25/2017] [Accepted: 08/26/2017] [Indexed: 06/07/2023]
Abstract
The process of spray atomization, i.e., the transformation of a continuous liquid jet into μm-sub-mm sized droplets, is ubiquitous in industry yet quite complex to analyze theoretically and study experimentally. One of the main strengths of MRI is its ability to sensitize spatially-resolved NMR signal to a wide variety of physical and chemical parameters. However, standard preparation schemes are difficult to employ for studies of sprays due to sprays' fast speeds (>10-20m/s). In addition, sprays are usually low-density systems, leading to a poor SNR and a need for massive signal averaging and long acquisition time. In this paper, we reduced the interval between the preparation and the readout stages by performing SPI encoding on the rising gradients. This also enabled the use of 90-degree flip angles to maximize the spray signal and saturate the stationary water signal while avoiding unwanted slice-selection. The use of gradients during preparation stage was eliminated due to their time-consuming rise and stabilization times limiting possible preparation schemes to a combination of RF pulses and delays. The two preparation schemes presented here are Time-of-Flight (TOF) and T1ρ-weighting schemes. The total duration of the sequence (without TR) was 240-1100μs for the TOF and 410μs for T1ρ. The T1ρ prepared images of the near-atomization region (11 spin-locking frequencies, 0-15kHz) showed a strong signal attenuation at higher frequencies. In series of TOF images the clearly noticeable displacement of the liquid parcel can be utilized to measure spray speeds.
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Affiliation(s)
- I V Mastikhin
- Department of Physics, University of New Brunswick, Fredericton E3B 5A3, NB, Canada.
| | - K M Bade
- Spraying Systems Co., Spray Analysis and Research Services, Wheaton, IL, USA
| | - S Ahmadi
- Department of Physics, University of New Brunswick, Fredericton E3B 5A3, NB, Canada
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Nasiri Kalmarzi R, Ataee P, Mansori M, Moradi G, Ahmadi S, Kaviani Z, Khalafi B, Kooti W. Serum levels of adiponectin and leptin in asthmatic patients and its relation with asthma severity, lung function and BMI. Allergol Immunopathol (Madr) 2017; 45:258-264. [PMID: 28411906 DOI: 10.1016/j.aller.2016.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 09/12/2016] [Accepted: 09/21/2016] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Asthma is one of the diseases which has a high prevalence in developed and developing countries. The relationship between asthma and obesity has always been focused by researchers. In this field, adipokines, especially adiponectin and leptin have highly attended by the scientist. The aim of this study was to determine the serum level of adiponectin, leptin and the leptin/adiponectin ratio in asthmatic patients and its relationship with disease severity, lung function and BMI (body mass index). METHODS In this cross-sectional study, 90 asthmatic women admitted to the tertiary referral hospital in Kurdistan province - Iran, were examined. First, BMI was measured and then pulmonary function tests were performed in all asthmatics patient. Forced expiratory volume in 1s (FEV1), forced vital capacity (FVC), and FEV1/FVC, were measured. At the end, blood samples were collected and serum level of adiponectin and leptin were measured by ELISA method. RESULT Serum leptin and leptin/adiponectin levels correlated positively with asthma severity and BMI (p=0.0001), but there was no correlation between adiponectin level with asthma severity and BMI (p>0.05), also serum leptin and leptin/adiponectin levels inversely correlated with FEV1 and FVC in patient (p=0.0001). CONCLUSION Asthma is linked with obesity, and there is an association between asthma severity and BMI with serum leptin and leptin/adiponectin levels, but our results do not support a significant role of adiponectin in obesity or asthma.
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Aradmehr M, Azhari S, Ahmadi S, Azmoude E. The Effect of Chamomile Cream on Episiotomy Pain in Primiparous Women: A Randomized Clinical Trial. J Caring Sci 2017; 6:19-28. [PMID: 28299294 PMCID: PMC5348659 DOI: 10.15171/jcs.2017.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 09/30/2015] [Accepted: 04/06/2016] [Indexed: 12/20/2022] Open
Abstract
Introduction: Episiotomy is a surgical incision made in the
perineum to enlarge it. Perineal pain is the most common complaint of mothers after
episiotomy. Chamomile extract has been proposed as a sedative in traditional medicine.
This study was conducted to assess the effect of chamomile cream on the pain after
episiotomy. Methods: This triple blind clinical trial was performed on
114 eligible women at Ommolbanin Hospital in Mashhad, Iran in 2014.They were randomly
assigned to two groups using random blocks. After delivery, mothers in the intervention
group used 0.5 g of prescribed chamomile while the control group used placebo cream on the
stitch twice a day lasting ten days. Episiotomy pain was evaluated before intervention and
12 hours after episiotomy repair and also on the first, seventh, tenth and fourteenth day
after delivery by McGill pain questionnaire. Data was analyzed by SPSS ver.13. Results: There was no significant difference between the
two groups before the intervention, 12 hours and the first day after delivery. However, a
significant difference was found on the seventh, tenth and fourteenth day after delivery.
McGill mean (SD) score on the seventh, tenth and fourteenth in experimental group was
11.36 (5.04), 4.44 (3.43) and 7.16 (4.10) respectively. It was reported 14.88 (7.34),
7.41(4.92) and 9.96 (4.81) in placebo group, respectively. Conclusion: Chamomile cream can be used to reduce episiotomy
pain in Primiparous us women.
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Affiliation(s)
- Maryam Aradmehr
- Department of Midwifery, School of Nursing and Midwifery, Islamic Azad University, Gonabad Branch, Gonabad, Iran
| | - Sedigheh Azhari
- Department of Midwifery, Faculty of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sedigheh Ahmadi
- Department of Midwifery, Razi Hospital Torbat Heydariyeh, Torbat Heydariyeh, Iran
| | - Elham Azmoude
- Department of Midwifery, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
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Ahmadi S, Bashiri R, Ghadiri-Anari A, Nadjarzadeh A. Antioxidant supplements and semen parameters: An evidence based review. Int J Reprod Biomed 2016. [DOI: 10.29252/ijrm.14.12.729] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Ahmadi S, Bashiri R, Ghadiri-Anari A, Nadjarzadeh A. Antioxidant supplements and semen parameters: An evidence based review. Int J Reprod Biomed 2016; 14:729-736. [PMID: 28066832 PMCID: PMC5203687] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Many studies have focused on male infertility. There is limited evidence about the influence of nutrition on quality of semen. Approximately, 30-80% of infertility cases are caused by oxidative stress and decreased level of seminal total antioxidant capacity. This study was aimed to review the effects of oral antioxidant supplements on improving major semen parameters such as sperm concentration, motility, morphology, DNA damage, and fertility rate. Data were extracted from PubMed and Google scholar database by using the terms "antioxidant", "multivitamin", "carnitine", "CoQ10", "vitamin C", "vitamin E", "zinc", "folic acid", "N-acetyl cysteine" and "selenium" combined with "male infertility", "semen", and "sperm" to generate a set of relevant citations. Supplements such as CoQ10 and alpha-tocopherol significantly improve sperm count. Also, carnitine has positive effects on sperm motility and morphology. Simultaneous administration of vitamin E and vitamin C reduces the sperm DNA damage. However, in some studies, one or more factors have not changed substantially. In most of the studies, antioxidant supplementation improved the number, motility, morphology and sometimes DNA integrity of sperm. The present study showed that antioxidant supplements, especially a combination of antioxidants such as vitamin C, vitamin E, and CoQ10 intake can effectively improve semen parameters in infertile men.
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Affiliation(s)
- Sedigheh Ahmadi
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Reihane Bashiri
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Akram Ghadiri-Anari
- Diabetes Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Azadeh Nadjarzadeh
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Karamali M, Dadkhah F, Sadrkhanlou M, Jamilian M, Ahmadi S, Tajabadi-Ebrahimi M, Jafari P, Asemi Z. Effects of probiotic supplementation on glycaemic control and lipid profiles in gestational diabetes: A randomized, double-blind, placebo-controlled trial. Diabetes & Metabolism 2016; 42:234-41. [DOI: 10.1016/j.diabet.2016.04.009] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/16/2016] [Accepted: 04/22/2016] [Indexed: 12/28/2022]
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Almaraashi M, John R, Hopgood A, Ahmadi S. Learning of interval and general type-2 fuzzy logic systems using simulated annealing: Theory and practice. Inf Sci (N Y) 2016. [DOI: 10.1016/j.ins.2016.03.047] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ahmadi S, Peymanfard M. The effect of social capital on improving productivity of human resources in the project of engineering, procurement and construction Bandar Abbas gas condensate refinery. J Fundam and Appl Sci 2016. [DOI: 10.4314/jfas.v8i2s.72] [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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Kamalipour H, Ahmadi S, Kamali K, Moaref A, Shafa M, Kamalipour P. Ultrasound for Localization of Central Venous Catheter: A Good Alternative to Chest X-Ray? Anesth Pain Med 2016; 6:e38834. [PMID: 27847699 PMCID: PMC5101724 DOI: 10.5812/aapm.38834] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/20/2016] [Accepted: 07/06/2016] [Indexed: 11/18/2022] Open
Abstract
Background Chest radiography after central venous catheter (CVC) insertion is the main method of verifying the catheter location. Despite the widespread use of radiography for detecting catheter position, x-ray may not always be readily available, especially in the operating room. Objectives We aimed to compare contrast-enhanced ultrasonography (CEUS) and chest radiography for detecting the correct location of CVCs. Methods One hundred sixteen consecutive patients with indications for CVC before cardiac surgery were enrolled in this observational study. After catheter insertion, CEUS was performed. Portable radiography was obtained postoperatively in the intensive care unit. Sensitivity, specificity, and predictive values were determined by comparing the ultrasonography results with radiographic findings as a reference standard. Results Chest radiography revealed 16 CVC misplacements: two cases of intravascular and 14 cases of right atrium (RA) misplacement. CEUS detected 11 true catheter malpositionings in the RA, while it could not recognize seven catheter placements correctly. CEUS showed two false RA misplacements and five falsely correct CVC positions. A sensitivity of 98% and specificity of 69% were achieved for CEUS in detecting CVC misplacements. Positive and negative predictive values were 95% and 85%, respectively. The interrater agreement (kappa) between CEUS and radiography was 0.72 (P < 0.001). Conclusions Despite close concordance between ultrasonography and chest radiography, CEUS is not a suitable alternative for standard chest radiography in detecting CVC location; however, considering its high sensitivity and acceptable specificity in our study, its usefulness as a triage method for detecting CVC location on a real-time basis in the operating room cannot be ignored.
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Affiliation(s)
- Hamid Kamalipour
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sedigheh Ahmadi
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Corresponding author: Sedigheh Ahmadi, Department of Anesthesiology and Intensive Care, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. Tel: +98-9173117608, Fax: +98-7138305661, E-mail:
| | - Karmella Kamali
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Moaref
- Department of Cardiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masih Shafa
- Department of Cardiac Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
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Ahmadi S, Sharifi M, Salehi R. Locked nucleic acid inhibits miR-92a-3p in human colorectal cancer, induces apoptosis and inhibits cell proliferation. Cancer Gene Ther 2016; 23:199-205. [PMID: 27199220 DOI: 10.1038/cgt.2016.10] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 03/02/2016] [Accepted: 03/02/2016] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) are a type of small noncoding RNAs that have a vital role in basic biological processes such as cellular growth, division and apoptosis. A change in the expression of miRNAs can induce many diseases. Recently, the role of miRNA in some of the cancers as a tumor suppressor and oncogene has been recognized. Several studies have proved that miR-92a-3p acts as an oncogene in colorectal cancer (CRC). We studied CRC by inhibiting miR-92a-3p in SW48 cells (human colorectal cancer cell line) that were transfected with locked nucleic acid (LNA). At different times, the expression level of miR-92a-3p, cell vitality, apoptosis and necrosis were studied by qRT-PCR, MTT, Annexin-V and propidiumiodide. Our results showed that the expression of miR-92a-3p and proliferation of SW48 cells were decreased, and also a high percentage of SW48 cells were exposed to apoptosis and necrosis (P⩽0.005). Our study showed that the inhibition of miR-92a-3p with LNA inhibited cell proliferation and induced apoptosis and necrosis in CRC.
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Affiliation(s)
- S Ahmadi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - M Sharifi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - R Salehi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Ahmadi S, Dehghan Banadaki S, Mozaffari-Khosravi H. Effects of Oral L-Carnitine Supplementation on Leptin and Adiponectin Levels and Body Weight of Hemodialysis Patients: a Randomized Clinical Trial. Iran J Kidney Dis 2016; 10:144-150. [PMID: 27225722] [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] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 12/10/2015] [Accepted: 12/20/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Carnitine supplementation may improve the general health and quality of life of hemodialysis patients by improving adipokines levels. The aim of the study was to investigate the effects of L-carnitine supplementation on leptin levels, adiponectin levels, and body weight of hemodialysis patients. MATERIALS AND METHODS Fifty hemodialysis patients were randomly divided into the carnitine group, who received oral L-carnitine, 1 g/L for 3 months, and the control group. Anthropometric measurements and serum levels of adipokines were measured at baseline and at the end of the intervention. RESULTS Forty-two participants completed the study. Serum leptin concentrations decreased after 12 weeks of the intervention in both groups, but these changes were not significant. The mean change of leptin concentration were, -1.7 ± 19.0 µg/mL and -7.1 ± 20.0 µg/mL in the carnitine group and the control group, respectively (P = .39). The mean adiponectin levels at baseline and after the intervention were 8.6 ± 11.19 µg/mL and 9.8 ± 4.1 µg/mL in the carnitine group (P = .67) and 5.0 ± 2.5 µg/mL and 11.2 ± 5.4 µg/mL in the control group, respectively (P < .001). Serum adiponectin levels increased significantly in the control group only. The decrease in body mass index was not significant. CONCLUSIONS This study showed that a daily supplementation of 1000 mg oral syrup of L-carnitine for 12 weeks did not affect leptin and adiponectin levels or the body weight or body mass index of hemodialysis patients.
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Affiliation(s)
| | | | - Hassan Mozaffari-Khosravi
- Department of Nutrition, Faculty of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Delshad V, Shemshad H, Moradian M, Ahmadi S, Malkyan L, Sabzalizadeh S. The Effect of Applying Global Positioning System in Ambulances on Response Time of Tehran Emergency Medical Service. HDQ 2016. [DOI: 10.15412/j.hdq.09010302] [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: 11/09/2022] Open
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Kargar S, Shiryazdi SM, Zare M, Mirshamsi MH, Ahmadi S, Neamatzadeh H. Comparison of postoperative short-term complications after laparoscopic transabdominal preperitoneal (TAPP) versus Lichtenstein tension free inguinal hernia repair: a randomized trial study. MINERVA CHIR 2015; 70:83-89. [PMID: 25017958] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM The aim of this randomized trial was to compare short-term postoperative complications of laparoscopic transabdominal preperitoneal (TAPP) and Lichtenstein tension free hernia repair. METHODS A total of 120 patients who went inguinal hernia repair at Shahid Sadoughi university training hospital from April 2011 to August 2013 were randomized into two TAPP (N.=60) and Lichtenstein (N.=60) repair group. Follow-up occurred within 6 weeks. The postoperative assessments included pain score (VAS), hematoma/seroma, urinary retention, wound infection incidence, and duration of hospital stay. RESULTS Pain was the most common symptoms in both groups. The TAPP group patients significantly had experienced less postoperative pain than the Lichtenstein group in all moments (P<0.05). TAPP group had lower incidence of hematoma (TAPP, 6.6% vs. Lichtenstein 13.3%; P=0.67), seroma (TAPP 10% vs. Lichtenstein 13.3%; P=1.00), and infection (TAPP 0 vs. Lichtenstein 1.6%; P=0.67). However, no differences between the 2 groups were found in terms of postoperative complications. In TAPP group mean of hospital stay significantly was less than Lichtenstein group (TAPP, 8.13±2.19 vs. Lichtenstein, 13.15±1.5 days; P<0.001). CONCLUSION The laparoscopic TAPP repair is safer and less complicated approach to inguinal hernia repair. The two main short-term advantages of the laparoscopic TAPP repair with the tension free Lichtenstein repair were less postoperative pain and earlier return to the normal life activities. No difference was seen in overall complications.
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Affiliation(s)
- S Kargar
- Department of Surgery, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran -
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Khamoushi F, Ahmadi S, Karami-Matin B, Ahmadi-Jouybari T, Mirzaei-Alavijeh M, Mahboubi M, Ataee M. Prevalence and Socio-Demographic Characteristics Related to Stress, Anxiety, and Depression among Patients with Major Tha-lassemia in the Kermanshah County. ACTA ACUST UNITED AC 2015. [DOI: 10.15412/j.jbtw.01040304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Ahmadi S, Karami Z, Mohammadian A, Khosrobakhsh F, Rostamzadeh J. Cholestasis induced antinociception and decreased gene expression of MOR1 in rat brain. Neuroscience 2015; 284:78-86. [DOI: 10.1016/j.neuroscience.2014.08.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 08/10/2014] [Accepted: 08/21/2014] [Indexed: 01/08/2023]
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Cornelius J, Slotty P, Ahmadi S, Mühmer M, Steiger H, Bostelmann R. Management of Plasmocytomas of the Craniocervical Junction with Early Stabilization. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1384189] [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: 10/20/2022]
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Bidermane I, Lüder J, Boudet S, Zhang T, Ahmadi S, Grazioli C, Bouvet M, Rusz J, Sanyal B, Eriksson O, Brena B, Puglia C, Witkowski N. Experimental and theoretical study of electronic structure of lutetium bi-phthalocyanine. J Chem Phys 2013; 138:234701. [DOI: 10.1063/1.4809725] [Citation(s) in RCA: 14] [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: 01/19/2023] Open
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Ahmadi S, Mirzaei K, Hossein-Nezhad A, Keshavarz SA, Ahmadivand Z. Resting energy expenditure may predict the relationship between obesity and susceptibility to depression disorders. Minerva Med 2013; 104:207-213. [PMID: 23514997] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM The aim of the current research was to investigate the association between depressed mood and resting energy expenditure (REE) in a representative sample of obese women. METHODS Fasting blood sample was collected from 254 obese women to determine biochemical indicators. Body composition was measured using body composition analyzer. REE was measured by means of indirect calorimetry. RESULTS Comparison between depressed group and healthy obese women demonstrated that the mean of body mass index, fat percent, fat mass, visceral fat and triglyceride were higher in women with depressed mood. CONCLUSION The level of REE/kg was significantly low in depressed obese women compared to healthy subjects.
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Affiliation(s)
- S Ahmadi
- Tehran University of Medical Sciences, Tehran, Iran
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Abstract
Rehabilitation is a major goal for children with cerebral palsy, although the potential to enhance cardio-respiratory fitness in such individuals remains unclear. This study thus compared current cardio-respiratory status between children with cerebral palsy and able-bodied children, and examined the ability to enhance the cardio-respiratory fitness of children with cerebral palsy by cycle ergometer training. 10 children with cerebral palsy (Gross Motor Function Classification System levels I and II) participated in thrice-weekly 30 min cycle ergometer training sessions for 8 weeks (mean age: 14.2±1.9 yrs). 10 additional subjects with cerebral palsy (mean age: 14.2±1.8 yrs) and 10 able-bodied subjects (mean age: 14.1±2.1 yrs) served as controls, undertaking no training. All subjects undertook a progressive cycle ergometer test of cardio-respiratory fitness at the beginning and end of the 8-week period. Cardio-respiratory parameters [oxygen intake V˙O2), ventilation V ˙ E) and heart rate (HR)] during testing were measured by Cosmed K4 b gas analyzer. The children with cerebral palsy who engaged in aerobic training improved their peak oxygen consumption, heart rate and ventilation significantly (p<0.05) and they also showed a non-significant trend to increased peak power output. In conclusion, children with cerebral palsy can benefit significantly from cardio-respiratory training, and such training should be included in rehabilitation programs.
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Affiliation(s)
- A L Nsenga
- UFR-STAPS, Université de Picardie, AMIENS, France.
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Ahmadi S, Mirzaei K, Hossein-Nezhad A, Shariati G. Vitamin D receptor FokI genotype may modify the susceptibility to schizophrenia and bipolar mood disorder by regulation of dopamine D1 receptor gene expression. Minerva Med 2012; 103:383-391. [PMID: 23042374] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM This study is designed to test association of FOKI polymorphism in Vitamin D receptor (VDR) gene and its potential effect on expression of dopamine D1 receptor in schizophrenia and bipolar mood disorder as well as in healthy individuals. METHODS In this case-control study 196 patient with schizophrenia, 119 patients with bipolar mood disorder and 192 healthy individuals as the control group were recruited. All psychiatric disorders were diagnosed according to DSM IV criteria. Healthy control group denied any family history of such disorders. FOKI was genotyped by means of PCR-RFLP method. The mRNA was extracted from the peripheral blood mononuclear cells (PBMC) and the cDNA was synthesized. RESULTS Frequency of ff genotype was more common in patients with bipolar disorders compared to the healthy control group (Odds ratio=1.84, 95% CI; 0.81 to 4.17) with increased relative risk (Relative risk=1.31, CI 95%; 0.86 to 1.99). There were significant differences between relative expressions of dopamine D1 receptor gene in various genotypes. Our results indicated that the ff genotype was associated with lower expression of dopamine D1 receptor gene. CONCLUSION VDR as a nuclear receptor may contribute to bipolar disorders via modification of the expression of the neurotransmitters receptor such as dopamine.
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Affiliation(s)
- S Ahmadi
- Tehran University of Medical Sciences, Tehran, Iran.
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Ahmadi S, Manteghian M, Kazemian H, Rohani S, Towfighi Darian J. Synthesis of silver nano catalyst by gel-casting using response surface methodology. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2012.05.012] [Citation(s) in RCA: 20] [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: 10/28/2022]
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Mirzaei K, Ahmadi S, Hossein-Nezhad A, Mokhtari F. Potential role of OPG/RANKL system and FokI genotypes in pathogenesis and clinical manifestations in multiple sclerosis. Minerva Med 2012; 103:313-321. [PMID: 22805623] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM The OPG/RANKL has identified role in immune system via T-cell-activating cytokines. Considering that immune mechanisms play a key role in the pathogenesis of MS, OPG/RANKL might be importance in the underlying mechanism of the disease. The aim of this study is to measure plasma levels of OPG and RANKL as well as to analyze VDR FokI polymorphism (rs2228570) in MS patients and healthy individuals to detect any potential correlation. METHODS We included a total of 397 participants, 105 of them suffering from two different types of MS, namely relapsing and remitting and secondary progressive multiple sclerosis. VDR genotyping was performed using PCR-RFLP method. RESULTS The results showed differences in the plasma levels of OPG and RANKL between patients and the healthy control group that were statistically significant. We found higher plasma levels of OPG and lower RANKL concentrations in RRMS patients in comparison with SPMS types of the disease. We detected higher plasma levels of OPG and lower levels of RANKL in subjects with F allele compared to those with f allele in healthy subjects. However, contradicting results were observed when patients with MS were analyzed. We detected lower plasma levels of OPG and higher RANKL concentrations in patients with F allele in comparison with those with f allele. CONCLUSION This might define a role for FokI polymorphism and OPG/RANKL system in the pathogenesis and progression of multiple sclerosis with further practical applications.
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Affiliation(s)
- K Mirzaei
- Tehran University of Medical Sciences, Tehran, Iran
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Zarrindast M, Ghiasvand M, Rezayof A, Ahmadi S. The amnesic effect of intra-central amygdala administration of a cannabinoid CB1 receptor agonist, WIN55,212-2, is mediated by a beta-1 noradrenergic system in rat. Neuroscience 2012; 212:77-85. [DOI: 10.1016/j.neuroscience.2012.04.008] [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] [Received: 02/09/2012] [Revised: 03/31/2012] [Accepted: 04/04/2012] [Indexed: 10/28/2022]
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Hashemi S, Alikhani MY, Seif-Rabiee MA, Ahmadi S. Comparison of nasal carriage of Staphylococcus aureus and its antimicrobial resistance in various grades of medical students. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.571] [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: 10/28/2022] Open
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Abstract
Natural Killer (NK) cells are thought to develop from common lymphoid progenitors in the bone marrow. Even though thymus is not essential for NK cell development, T-cell/natural killer-cell (T/NK) precursors, DN1 (CD44+CD25-) and DN2 (CD44+CD25+) when cultured on an OP9 stroma, give rise to some NK1.1 cells. Genes of the Schlafen (Slfn) family are involved in hematopoietic and immune processes. The contribution of the Slfn genes in NK cell development from Double Negative (DN) cells is unknown. We transduced DN1 and DN2 progenitors prepared from C57BL/6 (B6) mouse thymus with Schlafen 1 (Slfnl) and Schlafen 2 (Slfn2) genes using Mig retroviral vector containing the Green Fluorescent Protein (GFP) gene and cultured those transduced progenitors on OP9 and OP9 stroma expressing the Notch ligand Delta-like 1 (OP9-DL 1) with appropriate cytokines to see if they affect generating NK and T-cells differently. Maturation of both NK and T cells from immature T/NK thymocytes hampered by Slfn1 and Slfn2 transduction but we got a small number of Slfn1 and Slfn2 expressing cells upon culture of transduced DN progenitors on stroma cells. There was no difference between Slfn1 expressing (GFP+) and none expressing T cells regarding CD3 expression but all mature NK cells were from Slfn1 negative population. Slfn2 completely blocked maturation of T cells but there was no difference between Slfn2 expressing and none expressing NK cells. Based on our findings both Slfn1 and Slfn2 interfere with maturation of DN2 progenitors but T cell development is more sensitive to Slfn2 expression than NK cell.
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Affiliation(s)
- S Ahmadi
- Kurdistan Centre for Cell and Molecular Research, Kurdistan University of Medical Sciences, Sanandaj, Kurdistan, Iran
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Abstract
Sodium hypochlorite (NaClO) is used extensively as a disinfectant or bleaching agent. Most studies describe ingestion or inhalation route of this product with rare complication and fatalities. Despite global daily exposures, data about bleach injection is limited. Here we report intentional infusion of 20 mL, sodium hypochlorite 5% diluted in 500 mL normal saline 1.5 h prior admission. Clinical manifestation included local pain and edema. There were no laboratory abnormalities in the patient. Doppler sonography revealed thrombosis in superficial (antecubital and basilic) veins. Limb elevation, warm compress, and ibuprofen relived pain and edema after 3 days.
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Affiliation(s)
- SH Rahmani
- Department of Emergency Medicine, Tabriz University of Medical Science, Tabriz, Iran
| | - S Ahmadi
- Department of Emergency Medicine, Tabriz University of Medical Science, Tabriz, Iran
| | - SS Vahdati
- Department of Emergency Medicine, Tabriz University of Medical Science, Tabriz, Iran
| | - HH Moghaddam
- Department of Clinical Toxicology, Shahid Beheshti University of Medical Science, Loghman-Hakim Poison Hospital, Tehran, Iran
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Sheikholeslami Vatani D, Ahmadi S, Ahmadi Dehrashid K, Gharibi F. Changes in cardiovascular risk factors and inflammatory markers of young, healthy, men after six weeks of moderate or high intensity resistance training. J Sports Med Phys Fitness 2011; 51:695-700. [PMID: 22212275] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM The present study was done to see the Influence of moderate and severe intensity resistance exercises on some cardiovascular risk factors. METHODS Thirty young healthy male were randomly divided in to two types of intervention [MI: moderate intensity (45-55% 1RM), HI: high intensity (80-90% 1RM)] and one Control (no intervention) groups. Subjects in MI and HI intervention groups underwent 3 supervised resistance-training sessions per week for six weeks. IL-1, IL-6, HS-CRP, fibrinogen, ApoB, ApoA, LDL, HDL, ApoB/ApoA ratio, Lipoprotein Lipase (LPL), TG, cholesterol, cholesterol/HDL ratio, body mass index (BMI), systolic pressure (Ps), diastolic pressure (Pd) and waist/hip ratio (WHR) before and after resistance training period were assessed. RESULTS IL-1, IL-6, ApoB, ApoA, LPL, TG levels, ApoB/ApoA ratio, Ps, Pd, WHR, BMI and CPR did not change significantly in trained groups. In post test HS-CRP was significantly lower in trained groups in comparison to control group (P≤0.05). LDL, Cholesterol and cholesterol/HDL ratio decreased significantly in trained groups (P≤0.05). In the HI group plasma level of fibrinogen were decreased while HDL level were increased (P≤0.05). CONCLUSION Resistance training for 6 weeks in young healthy males evoked beneficial effects regarding some inflammatory and cardiovascular risk markers. Higher-intensity resistance training was more effective in reducing plasma fibrinogen and increasing plasma HDL levels than moderate resistance training.
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