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Shahbandi A, Jahangiri P, Meybodi KT, Nejat F, Habibi Z. Implementation of an adapted perioperative ventriculoperitoneal shunting protocol in a tertiary center located in a low-to-middle-income country. Childs Nerv Syst 2024:10.1007/s00381-024-06374-z. [PMID: 38557895 DOI: 10.1007/s00381-024-06374-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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 03/20/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVE Preventative protocols have efficaciously reduced shunt infection in developed countries. However, the generalizability of these protocols in low-to-middle-income countries (LMICs) remains unclear. Previously, shunt insertion in the authors' center was routinely performed under institutional preventative precautions, which was updated via merging with the Hydrocephalus Clinical Research Network (HCRN) protocol. This study aimed to investigate the ventriculoperitoneal shunt (VPS) infection rates in pediatric patients following the implementation of the adapted protocol. METHODS The adapted protocol was implemented in all first-time VPS implantations between 2011 and 2021. The primary outcome was a 6-month shunt infection. The Pearson chi-square test was used for categorical variables and the Mann-Whitney U-test for numeric variables to evaluate the correlation with shunt infection. RESULTS A total of 352 first-time VPS procedures were performed adhering to the adapted protocol. The median age was 5 months, and 189 (53.7%) were male. Overall, 37 patients (10.5%) experienced shunt infection, with 30 (8.5%) occurring within the first 6 months, which was lower than 13.3% infection rate of the previous series of the same center. The infection rate was slightly higher than the 5.7% and 6.0% rates reported by HCRN studies. Patients with shunt infection were significantly younger (7.5 versus 17.5 months, P < 0.001). CONCLUSIONS This study validates the efficacy of an adapted perioperative protocol in mitigating shunt infection in a high-volume center in a LMIC. Adhering to a step-by-step protocol, modified to suit the healthcare resources and financial constraints of LMICs, could maintain low shunt infection rates that are roughly comparable to those of centers in high-income countries.
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Affiliation(s)
- Ataollah Shahbandi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Pedram Jahangiri
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Jahangiri P, Roohollahi F, Habibi Z, Mirbolouk MH, Rostami M. Management of aggressive recurrent thoracic spine aneurysmal bone cyst in a 7-year-old male: A case report and review of the literature. Surg Neurol Int 2024; 15:30. [PMID: 38468663 PMCID: PMC10927180 DOI: 10.25259/sni_886_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/29/2023] [Indexed: 03/13/2024] Open
Abstract
Background Spinal aneurysmal bone cysts (ABCs) are rare, histologically benign tumors with aggressive behavior, which may cause bone and soft-tissue destruction, particularly affecting neural elements. Management of these tumors, including treatment modalities and follow-up protocols, remains challenging. Case Description A 7-year-old boy presented with chest wall pain persisting for two months before admission, accompanied by progressive mono paresis lasting ten days before admission. Myelopathy signs were evident during the examination. Imaging confirmed a multicystic lesion at the T6 level involving the posterior elements of the vertebra, with significant cord compression. Due to deteriorating neurological function, he underwent urgent laminectomy and neural decompression, followed by subtotal tumor resection. Postoperative histopathological examination confirmed the diagnosis of an ABC, and the patient experienced significant neurological recovery. However, after 21 days, the patient was readmitted to the emergency department with severe paraparesis. Magnetic resonance imaging revealed rapid growth of the residual tumor, leading to cord compression. He underwent aggressive total tumor resection, T6 vertebral body corpectomy, and fixation with pedicle screws and cage insertion. Following the second surgery, prompt neurological recovery occurred. Conclusion This rare case report emphasizes the importance of a close follow-up protocol for spinal ABCs in the pediatric population. It highlights the challenges in managing these tumors and the need for vigilant monitoring to detect and address rapid recurrences.
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Affiliation(s)
- Pedram Jahangiri
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Faramarz Roohollahi
- Sport Medicine Research Center, Tehran University of Medical Sciences, Yas Hospital, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Tehran University of Medical Sciences, Children’s Medical Center, Tehran, Iran
| | | | - Mohsen Rostami
- Spine Center of Excellence, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Mostafavi M, Poor MB, Habibi Z, Mohammadi M, Yousefi M. Hyperactivation of lipases by immobilization on superhydrophobic graphene quantum dots inorganic hybrid nanoflower. Int J Biol Macromol 2024; 254:127817. [PMID: 37918587 DOI: 10.1016/j.ijbiomac.2023.127817] [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: 07/17/2023] [Revised: 10/22/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Various nanoflowers are synthesized for enzyme immobilization. In order to increase the activity of nanoflowers, in this study, 3D flower-like structured organic-inorganic hybrid nanoflowers (hNFs) with various lipases Rhizomucor miehei lipase (RML), Candida antarctica lipase B (CALB), Humicola insolens lipase (HIL), Thermomyces lanuginosus lipase (TLL), Eversa® Transform 2.0 (ET) a genetically modified enzyme derived of TLL and graphene quantum dots (GQDs) were prepared and characterized.Lipase hNFs [lipase-(Cu/Co)3(PO4)2] and lipase@GQDs hNFs [lipase@GQDs-(Cu/Co)3(PO4)2] were straightforwardly prepared through mixing with metal ion (Cu2+or Co2+) aqueous solutions with or without GQDs. The ET@GQDs-(Cu)3(PO4)2 hNFs demonstrated 687 % higher activity than ET-(Cu)3(PO4)2 hNFs and 650 % higher activity than the free ET. Similar results were also observed with other lipase hybrid nanoflowers. For example, TLL@GQDs-(Cu)3(PO4)2 hNFs exhibited a 557 % higher activity than TLL-(Cu)3(PO4)2 hNFs and a 463 % higher activity than free TLL. Additionally, TLL@GQDs-(Co)3(PO4)2 hNFs showed a 141 % higher activity than TLL-(Co)3(PO4)2 hNFs and a 304 % higher activity than free TLL. Upon examining pH and thermal stability, it was revealed that lipase@GQDs hNFs exhibited higher activity compared to free lipase and other hNFs without GQDs. The effect of metal ions, enzyme concentrations and amount of GQDs on the morphology and enzyme activity of the lipase-hNFs was examined.
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Affiliation(s)
- Mostafa Mostafavi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Mahtab Beihaghi Poor
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Zohreh Habibi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran.
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
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Maroufi SF, Dabbagh Ohadi MA, Hosseinnejad I, Tayebi Meybodi K, Takzare A, Ashjaei B, Nejat F, Habibi Z. Cervical saccular limited dorsal myeloschisis, so-called "cervical myelomeningocele": long-term follow-up of a single-center series and systematic review. J Neurosurg Pediatr 2024; 33:44-58. [PMID: 37862714 DOI: 10.3171/2023.8.peds23271] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 08/21/2023] [Indexed: 10/22/2023]
Abstract
OBJECTIVE Cervical saccular limited dorsal myeloschisis (LDM), previously so-called "cervical myelomeningocele," is a rare spinal dysraphism. Although the pathogenesis of true myelomeningocele is primary neurulation failure, LDM results from a delayed abnormality during the final stages of neurulation. The aim of the study was to evaluate the outcome of these patients and to assess the correlation of outcomes with the level and type of lesion. Also, pooled data from the literature on similar lesions were systematically reviewed. METHODS A retrospective study was conducted at Children's Medical Center (CMC), Tehran, Iran. Information of patients who underwent surgery between 2004 and 2020 (i.e., the recent series) was extracted and combined with data from a previously published series from the same center that were obtained between 2000 and 2003 (CMC series). The literature was reviewed for all published cases, to be combined with the CMC series for further analyses. RESULTS Twenty-two patients were included in the recent series. Combined with 16 previously published cases, 38 patients with a mean ± SD age at surgery of 11.75 ± 28.64 months were included in the CMC series. The rates of neurological deficit, hydrocephalus, and Chiari malformation type II in the CMC series were 26.32%, 39.47%, and 28.95%, respectively. The lesions were at the upper levels in 17 (44.7%) and lower cervical levels in 21 (55.3%) patients, with 31 cases (81.58%) diagnosed with stalk-type lesions and 7 cases (18.42%) with myelocystocele-type lesions. At final follow-up, 31 patients (81.57%) achieved sphincter continence, and all 36 accessible patients were ambulated, consisting of 28 (73.68%) independent and 8 (21.05%) dependent ambulation patients. The rates of Chiari malformation type II and hydrocephalus were insignificantly higher in patients with upper-level lesions, but those of neurological deficit, ambulation, and sphincter continence were not associated with level. The rates of hydrocephalus (p < 0.01), Chiari type II malformation (p < 0.01), and neurological deficit (p = 0.04) were significantly higher in the myelocystocele group. In the systematic review, 24.77% of patients had neurological deficit. Binary logistic regression showed that older age at surgery (p = 0.03) and associated spinal anomalies (p = 0.04) were significant predictors of deficits. Chiari type II malformation was significantly (p < 0.001) and hydrocephalus was marginally (p = 0.06) more common in patients with myelocystocele-type lesions. The rate of Chiari malformation type II was higher in patients with upper-level lesions (p = 0.02). CONCLUSIONS Patients with cervical saccular LDM had better outcome compared with those patients with true myelomeningocele in more distal areas. According to the current series, most patients obtained ambulation and voiding continence, regardless of the level or type of lesion. Hydrocephalus, Chiari type II malformation, and neurological deficit were more common in patients with myelocystocele-type lesions.
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Affiliation(s)
| | | | | | | | | | - Bahar Ashjaei
- 3Pediatric Surgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Mahmoudzadeh K, Habibi Z, Yousefi M, Mostafavi M, Mohammadi M. Peptiligase, an enzyme for efficient chemo-enzymatic synthesis of aviptadil. Int J Biol Macromol 2023; 253:127089. [PMID: 37774815 DOI: 10.1016/j.ijbiomac.2023.127089] [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: 07/18/2023] [Revised: 09/04/2023] [Accepted: 09/24/2023] [Indexed: 10/01/2023]
Abstract
Increasing attention to peptides as prospective therapeutics has created a renaissance in searching for new alternatives to the current peptide synthetic approaches as well as their modification. In this context, it is necessary to develop different approaches for peptide ligation. Using enzymes as a novel strategy and powerful tool for the peptide and protein ligation has recently received a lot of attention. We here designed a fully convergent chemo-enzymatic peptide synthesis (CEPS) process for the synthesis of aviptadil a 28-mer therapeutic peptide with potential therapeutic effects in various medical contexts specially in the treatment of acute respiratory distress syndrome (ARDS) by coupling two peptide segments with four different peptiligase variants in aqueous environments. Our study reveals that peptiligase variants are capable of ligation reaction in 15 min. The overall time of ligation is shorter than those peptides with similar lengths and hinderance to aviptadil which reported for conventional synthesis by full solid-phase peptide synthesis. Yields ranged from 54 % to 76 %.
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Affiliation(s)
- Kazem Mahmoudzadeh
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Zohreh Habibi
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
| | - Mostafa Mostafavi
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Nejat A, Berchi Kankam S, Heidari V, Tayebi Meybodi K, Habibi Z, Karami S, Nejat F. The Predictors of Seizures in Patients with Encephalocele: An 11-Year Experience from a Tertiary Hospital. Pediatr Neurosurg 2023; 58:410-419. [PMID: 37751730 DOI: 10.1159/000534140] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023]
Abstract
INTRODUCTION The aim of the study was to investigate and identify the predictors associated with the incidence of seizures in patients with encephalocele (EC). METHODS A retrospective analysis was undertaken of patients treated for EC at a tertiary medical center in Tehran between 2010 and 2021. Data including age at presentation, gender, location, size, and content of EC, ventriculomegaly, hydrocephalus, associated anomalies, and neurodevelopmental delay (NDD) were evaluated for their prognostic value. In addition, univariate and multivariate analyses were performed to identify the correlation between independent predictors and seizure incidence. RESULTS One hundred and two cases of EC were identified. Seventy-one ECs (69.6%) were posterior ECs, while 31 (30.4%) were anterior. Neural tissue was found in 43 (42.2%) of the ECs. Thirty-three patients (32.4%) had ventriculomegaly, of which 90.9% underwent shunt placement for progressive or symptomatic hydrocephalus. Seizure was found in 26 (25.5%) patients. On univariate analysis, presence of other anomalies, postoperative infections, and NDD were associated with seizures (p < 0.05). When the anomalies were categorized into intracranial and extracranial groups in univariate analysis, none was associated with statistically significant increase in seizure (p values of 0.09 and 0.61, respectively). Although according to multivariate analysis, only the association between other associated anomalies and seizure was near significant (OR: 2.0, 95% CI: 0.95-4.2, p = 0.049). Children with NDD and postoperative infection were, respectively, 3.04 and 1.3 times more at risk to experience seizures compared to other patients. CONCLUSION We found a rate of 25.5% risk of seizure in patients with EC. This study could not find any significant predictors of seizure in children with EC. However, pediatric patients with postoperative infections including sepsis, wound infection, and NDD require more consideration to reduce the risk of seizure.
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Affiliation(s)
- Amirhosein Nejat
- Department of Neurosurgery, Firouzgar Hospital, Iran University of Medical Science, Tehran, Iran
| | - Samuel Berchi Kankam
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Vahid Heidari
- Department of Neurosurgery, Firouzgar Hospital, Iran University of Medical Science, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Zohreh Habibi
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Sajedeh Karami
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Farideh Nejat
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
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Kankam SB, Karami S, Nejat A, Meybodi KT, Habibi Z, Nejat F. Odd presentation of shunt malfunction: a case series and review of literature. Childs Nerv Syst 2023; 39:2479-2485. [PMID: 37010583 DOI: 10.1007/s00381-023-05946-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/28/2023] [Indexed: 04/04/2023]
Abstract
OBJECTIVE Children with previous ventriculoperitoneal shunt (VPS) insertion due to hydrocephalus may refer to the hospital with various clinical complaints. Shunt malfunction is frequently diagnosed in these children necessitating shunt revision. Although increased head circumference, setting sun eye in younger children, and headache, nausea/vomiting, loss of consciousness, visual disturbance, and other signs of intracranial hypertension are common clinical manifestations of shunt malfunction, some patients may present with odd or unusual symptoms. Here, we present a series of patients with shunted hydrocephalus who presented with odd and unexpected clinical manifestations of shunt malfunction. METHODS Eight children with shunt malfunction were enrolled in this series. The age, sex, age of shunting, etiology of hydrocephalus and management, post-shunt insertion symptoms/sign, revision surgery, outcome, and follow-up were evaluated. RESULTS Patients were aged from 1 to 13 years (mean, 6.38 years). There were 5 males and 3 females. The odd presentation associated with shunt malfunction included facial palsy in three children, ptosis in 3 children, and torticollis and dystonia each in one child. All patients underwent shunt revision except for one patient in whom a new shunt was inserted. Follow-up showed improvement of the symptoms in all patients. CONCLUSION In this series, we reported eight patients with unusual signs and symptoms following shunt malfunction that were successfully diagnosed and managed.
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Affiliation(s)
- Samuel Berchi Kankam
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajedeh Karami
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirhosein Nejat
- Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Habibi Z, Meybodi KT, Tavallaii A, Nejat F. A clinical clue toward recognition of split cord malformation type-I resembling meningocele in neonates. Childs Nerv Syst 2023; 39:2267-2268. [PMID: 37310473 DOI: 10.1007/s00381-023-06006-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 05/22/2023] [Indexed: 06/14/2023]
Abstract
This is a letter to share the clinical experience we had with neonates born with a specific feature of spina bifida. The lesion is like a meningocele containing skim amount of fluid, with a tiny dimple around the center of the cutaneous lesion which causes inward retraction of the dysplastic coverage. This feature is in favor of accompanied split cord malformation (SCM) type I, and the central nidus is in continuous with the dural sleeve around the bony septum of SCM. By recognition of this clinical clue, surgical repair can be planned to perform with appropriate provision, particularly foreseeing the amount of intraoperative bleeding and duration of anesthesia in the newborn patients.
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Affiliation(s)
- Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran.
| | - Keyvan Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - Amin Tavallaii
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
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Karami S, Kheiri G, Taghdiri MM, Tavallaii A, Tayebi Meybodi K, Habibi Z, Nejat F. A prospective study of prenatal ventriculomegaly: natural course, survival, and neurodevelopmental status. J Neurosurg Pediatr 2023; 32:44-49. [PMID: 36964731 DOI: 10.3171/2023.2.peds22522] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/08/2023] [Indexed: 03/26/2023]
Abstract
OBJECTIVE Prenatal ventriculomegaly (VM) is classified as mild, moderate, or severe on the basis of the diameter of the atrium. Neurodevelopmental status in prenatal VM is associated with various factors such as the course of VM, VM type, progression, and associated anomalies. In this study, the authors aimed to evaluate neurodevelopmental outcome in patients with prenatal VM and to detect possible associated risk factors. METHODS In this study, 73 pregnancies with VM who were referred to Children's Medical Center, Tehran, Iran, between 2019 and 2021 were prospectively followed. They were followed up every 2-4 weeks with ultrasonography (US) before delivery and were then observed for an average time of 14.6 months. The authors collected demographic and ultrasound information, associated abnormalities, pregnancy outcomes, and developmental status according to Centers for Disease Control criteria. RESULTS The mean gestational age at the time of diagnosis was 28.1 weeks, and 46.6% of fetuses were female. According to the first US, 46.6% had mild, 21.9% had moderate, and 31.5% had severe VM. Serial US scans showed that VM had regressed in 20.5% of patients, remained stable in 35.6%, and progressed in 43.8%. Other cranial abnormalities were detected in 38.4% of fetuses. During follow-up, 62.5% of cases had normal developmental status, 26.6% had mild delay, and 10.9% had severe neurodevelopmental delay. Pregnancy was terminated in 9 (12.3%) cases. Normal neurodevelopment was reported in 75.8% of patients with mild VM versus 50% of those with severe VM (p = 0.19). Neurodevelopmental status was normal in 72.5% of cases without other cranial abnormalities (p = 0.018) and in 86.7% of cases with regression of VM (p = 0.028). CONCLUSIONS Despite analysis of different factors in prenatal VM, only progression of VM and associated cranial abnormalities had significant relationships with neurodevelopmental prognosis.
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Affiliation(s)
- Sajedeh Karami
- 1Department of Neurology, Mofid Hospital, Shahid Beheshti University of Medical Science, Tehran; and
| | - Ghazaleh Kheiri
- 2Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Mohammad Mehdi Taghdiri
- 1Department of Neurology, Mofid Hospital, Shahid Beheshti University of Medical Science, Tehran; and
| | - Amin Tavallaii
- 2Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- 2Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Zohreh Habibi
- 2Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Farideh Nejat
- 2Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
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Asl NS, Behfar M, Amiri RS, Mohseni R, Azimi M, Firouzi J, Faranoush M, Izadpanah A, Mohmmad M, Hamidieh AA, Habibi Z, Ebrahimi M. Intra-lesion injection of activated Natural Killer (NK) cells in recurrent malignant brain tumors. Int Immunopharmacol 2023; 120:110345. [PMID: 37267858 DOI: 10.1016/j.intimp.2023.110345] [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: 04/07/2023] [Revised: 04/30/2023] [Accepted: 05/12/2023] [Indexed: 06/04/2023]
Abstract
Despite multi-modal therapies for patients with malignant brain tumors, their median survival is < 2 years. Recently, NK cells have provided cancer immune surveillance through their direct natural cytotoxicity and by modulating dendritic cells to enhance the presentation of tumor antigens and regulate T-cell-mediated antitumor responses. However, the success of this treatment modality in brain tumors is unclear. The main reasons are; the brain tumor microenvironment, the NK cell preparations and administration, and the donor selection. Our previous study showed that intracranial injection of activated haploidentical NK cells resulted in the eradication of glioblastoma tumor mass in the animal model without any evidence of tumor recurrence. Therefore, in the present study, we evaluated the safety of intra-surgical cavity or intra cerebrospinal fluid (CSF) Injectionofex vivoactivated haploidentical NK cells in six patients with recurrent glioblastoma multiform (GBM) and malignant brain tumors resistance to chemo/radiotherapy. Our results indicated that activated haploidentical NK cells express activator and inhibitor markers and can kill the tumor cells. However, their cytotoxic potential on patient-derived GBM (PD-GBM) was more than that of its cell line. Also, their infusion increased the overall disease control rate by about 33.3%, with a mean survival of 400 days. Moreover, we showed that local administration of the activated haploidentical NK cells in malignant brain tumors is safe, feasible, tolerated at higher doses, and cost-effective.
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Affiliation(s)
- Niloufar Shayan Asl
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Behfar
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Rouzbeh Shams Amiri
- Neuroscience Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Rashin Mohseni
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Azimi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Javad Firouzi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohammad Faranoush
- Pediatric Growth and Development Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Amirhossein Izadpanah
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Monireh Mohmmad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Amir Ali Hamidieh
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran.
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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Neissari N, Shahedi M, Habibi Z, Yousefi M, Minai-Tehrani A, Yazdi Samadi F, Brask J, Bavandi H, Mohammadi M. Biocatalytic synthesis of oxadiazole thioethers and evaluation of their antitumor activity. Org Biomol Chem 2023. [PMID: 37249163 DOI: 10.1039/d2ob02307e] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A multicomponent enzyme-catalyzed process is suggested for the synthesis of a novel series of 1,3,4-oxadiazole thioether derivatives with yields ranging from 65 to 94%. Novozym 435, the immobilized form of Candida antarctica lipase B (CALB), was found to efficiently catalyze the reaction. The products were evaluated for antitumor activities against two cancer cell lines, HT-29 (human colorectal cancer cell) and HepG2 (human liver cancer cell), by MTT assays. Among them, two compounds exhibited higher antitumor activities, for both cell lines, compared to doxorubicin. In silico molecular docking and computational ADME analysis were performed to propose a mode of action for the anti-cancer activities and to predict drug-likeness, respectively.
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Affiliation(s)
- Negin Neissari
- Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Mansour Shahedi
- Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Zohreh Habibi
- Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Arash Minai-Tehrani
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Fatemeh Yazdi Samadi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Jesper Brask
- Novozymes A/S, Krogshøjvej 36, 2880 Bagsværd, Copenhagen, Denmark
| | - Hossein Bavandi
- Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
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12
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Shahedi M, Omidi N, Habibi Z, Yousefi M, Brask J, Notash B, Mohammadi M. Biocatalytic stereoselective synthesis of pyrrolidine-2,3-diones containing all-carbon quaternary stereocenters. Org Biomol Chem 2023; 21:2742-2747. [PMID: 36916669 DOI: 10.1039/d2ob02294j] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Highly functionalized pyrrolidine-2,3-diones can be synthesized efficiently and stereoselectively under mild conditions using a biocatalytic approach. The reaction led to the formation of new all-carbon quaternary stereocenters from Myceliophthora thermophila laccase (Novozym 51003) catalyzed oxidation of catechols to ortho-quinones and subsequent 1,4-addition with 3-hydroxy-1,5-dihydro-2H-pyrrol-2-ones. The reaction was conducted with various substituents on both reactants, resulting in 13 products in moderate to good yields (42-91%). The same 15 reactions were also tested with K3Fe(CN)6 as a catalyst, but here only one reaction resulted in a product (60% yield).
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Affiliation(s)
- Mansour Shahedi
- Department of Organic Chemistry, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Niloofar Omidi
- Department of Organic Chemistry, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Zohreh Habibi
- Department of Organic Chemistry, Shahid Beheshti University, 1983969411 Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
| | - Jesper Brask
- Novozymes A/S, Krogshøjvej 36, 2880 Bagsværd, Copenhagen, Denmark
| | - Behrouz Notash
- Department of Inorganic Chemistry, Shahid Beheshti University, 1983969411 Tehran, Iran
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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13
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Tavallaii A, Meybodi KT, Nejat F, Habibi Z. Current status of research on targeted therapy against CNS tumors in low- and lower-middle-income countries - a review. World Neurosurg 2023; 174:74-80. [PMID: 36918096 DOI: 10.1016/j.wneu.2023.03.030] [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: 12/09/2022] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023]
Abstract
AIM In recent decades, a significant body of research has focused on targeted therapies for the treatment of central nervous system (CNS) tumors to enhance the effectiveness of management strategies. However, the vast majority of these efforts have been centered in high-income countries, which renders the generalizability of their results to low- and middle-income countries questionable. Therefore, in this review, we systematically investigated the current status of research conducted on targeted therapy for CNS tumors in low- and lower-middle-income countries to elucidate the contribution of these countries in advancing the field of neuro-oncology. METHODS A systematic search of three databases was performed using a predefined search strategy. After screening the articles based on our inclusion/exclusion criteria, the data were extracted to a predesigned Excel worksheet. RESULTS A review of 44 included studies revealed that India, Iran, and Lebanon were the only countries with a contribution to this field. Interestingly, all included studies were lab or animal experiments, and there were no clinical studies in this field. The most investigated CNS tumor was malignant glioma, and "gene-targeted therapy" was the most investigated category of targeted therapies in these countries. CONCLUSION Low- and lower-middle-income countries comprise more than half of the world's population, but they are deprived of targeted therapies against CNS tumors. Although there are basic experiments performed on this subject, they originate in a limited number of these countries. Therefore, targeted therapy is in its preliminary stage in these countries.
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Affiliation(s)
- Amin Tavallaii
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayyebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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14
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Mostafavi M, Mahmoodzadeh K, Habibi Z, Yousefi M, Brask J, Mohammadi M. Immobilization of Bacillus amyloliquefaciens protease "Neutrase" as hybrid enzyme inorganic nanoflower particles: A new biocatalyst for aldol-type and multicomponent reactions. Int J Biol Macromol 2023; 230:123140. [PMID: 36621745 DOI: 10.1016/j.ijbiomac.2023.123140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/27/2022] [Accepted: 01/01/2023] [Indexed: 01/07/2023]
Abstract
Organic-inorganic hybrid nanoflowers (hNFs) with commercial protease "Neutrase" is proposed and characterized as efficient and green biocatalysts for promiscuous catalysis in aldol-type and multicomponent reactions. Neutrase hNFs [Neutrase-(Cu/Ca/Co/Mn)3(PO4)2] are straightforwardly prepared through mixing metal ion (Cu2+, Ca2+, Co2+ or Mn2+) aqueous solutions with Neutrase in phosphate buffer (pH 7.4, 10 mM) resulting in precipitation (3 days). The hNFs were characterized by various techniques including scanning electron microscopy (SEM), energy dispersive X-ray (EDX), element mapping, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). In SEM images, the metal-Neutrase complexes revealed flower-like or granular structures after hybridization. The effect of metal ions and enzyme concentrations on the morphology and enzyme activity of the Neutrase-hNFs was examined. The synthesized Neutrase-Mn hNFs showed superior activity and stability compared to free Neutrase. Traditional organic CC coupling reactions such as aldol condensation, decarboxylative aldol, Knoevenagel, Hantzsch-type reactions and synthesis of 4H-pyran derivatives were used to test the generality and scope of Neutrase promiscuity, while optimizing conditions for the Neutrase-Mn hNF biocatalyst. Briefly, Neutrase-Mn3(PO4)2 hNFs showed excellent enzyme activity, stability and reusability, qualifying as effective reusable catalysts for coupling reactions under mild conditions.
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Affiliation(s)
- Mostafa Mostafavi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Kazem Mahmoodzadeh
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Zohreh Habibi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
| | - Jesper Brask
- Novozymes A/S, Krogshøjvej 36, 2880, Bagsværd, Copenhagen, Denmark
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Tavallaii A, Kankam SB, Nejat A, Meibodi KT, Habibi Z, Nejat F. Predictive Scoring Systems in the Field of Neurosurgery: Why and How to Develop Them? World Neurosurg 2023; 173:278-280. [PMID: 36858294 DOI: 10.1016/j.wneu.2023.02.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Affiliation(s)
- Amin Tavallaii
- Department of Pediatric Neurosurgery, Akbar Children's Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samuel Berchi Kankam
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirhosein Nejat
- Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meibodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
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16
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Kankam SB, Tavallaii A, Mohammadi E, Nejat A, Habibi Z, Nejat F. The neurodevelopmental outcomes of children with encephalocele: a series of 102 patients. J Neurosurg Pediatr 2023; 31:151-158. [PMID: 36433870 DOI: 10.3171/2022.10.peds22304] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/18/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The overall prognosis of encephalocele (EC) is not well described. However, the presence of some risk factors may result in neurodevelopmental delay (NDD) and negatively affect the prognosis of affected patients. The goal of this study was to evaluate neurodevelopmental outcome, as well as the impact of a number of factors on the outcome in patients with ECs. METHODS This was an observational, retrospective study including 102 children with EC who were followed at the pediatric neurosurgery department of a tertiary medical center between the years 2010 and 2021. The authors evaluated NDD status according to the Centers for Disease Control and Prevention classification via clinical evaluation and parent interviews in the outpatient setting. RESULTS There were 52 boys and 50 girls. The median age at the time of surgery was 4 months (range 1 day-7.5 years). Seventy-one patients (69.6%) had posterior ECs, whereas 31 (30.4%) had anterior ECs. Forty-three (42.2%) of the ECs contained neural tissue. Of the 102 patients, 33 (32.4%) had ventriculomegaly. In terms of NDD, 14 (14.9%) had mild/moderate delay, whereas 17 patients (18.1%) had severe NDD. On univariate analysis, posterior location, size of sac, presence of neural tissue, ventriculomegaly, symptomatic hydrocephalus, and postoperative infection were correlated with NDD. On a multivariate logistic regression model, only neural tissue presence had a statistically significant association with NDD (OR 7.04, 95% CI 1.33-37.2, p = 0.022). Although not statistically significant, children with ventriculomegaly were 2.6 times as likely to have NDD (95% CI 0.59-11.19, p = 0.362). CONCLUSIONS This is a single-center study with a large sample size in which the neurodevelopmental status of patients with EC was assessed, and the authors tried to find the risk factors of NDD in these patients. The results showed that the presence of neural tissue within the EC sac was the only risk factor that had independent statistically significant association with NDD.
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Affiliation(s)
- Samuel Berchi Kankam
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran; and
| | - Amin Tavallaii
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran; and
| | - Esmaeil Mohammadi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran; and
| | - Amirhosein Nejat
- 2Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran; and
| | - Farideh Nejat
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran; and
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17
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Kankam SB, Nejat A, Tavallaii A, Tayebi Meybodi K, Habibi Z, Nejat F. Hydrocephalus in patients with encephalocele: introduction of a scoring system for estimating the likelihood of hydrocephalus based on an 11-year experience from a tertiary center. J Neurosurg Pediatr 2023; 31:298-305. [PMID: 36640101 DOI: 10.3171/2022.12.peds22475] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/12/2022] [Indexed: 01/15/2023]
Abstract
OBJECTIVE The goal of this study was to investigate and identify the predictors associated with the incidence of hydrocephalus requiring shunt insertion in patients with encephalocele (EC), and to develop a scoring system to estimate the probability of hydrocephalus occurrence over time in these patients. METHODS A retrospective analysis was undertaken on data from patients treated for EC at a tertiary medical center between 2010 and 2021. Data including patient age at presentation, sex, sac location, sac size, contents, presence of ventriculomegaly/hydrocephalus, CSF leakage, and other associated intracranial/extracranial anomalies were among the variables evaluated for their predictive value. In addition, logistic regression analyses were performed to identify the independent predictors. A predictive scoring system was developed based on regression coefficients. RESULTS A total of 102 cases of EC were identified. The patient group consisted of 52 boys and 50 girls. Seventy-one patients (69.6%) had posterior ECs. Forty-three (42.2%) of the ECs contained neural tissue. Thirty-three patients presented with ventriculomegaly (32.4%), 30 of whom (90.9%) underwent ventriculoperitoneal shunt placement for hydrocephalus. Multivariate analysis revealed that the presence of other associated anomalies (OR 2.8, 95% CI 1.1-7.4, p = 0.027), larger EC sac size (OR 1.3, 95% CI 1.01-1.6, p = 0.042), and infections (OR 6.8, 95% CI 1.3-34.8, p = 0.034) were associated with ventriculomegaly. The logistic regression model consisted of 5 variables including the patients' history of meningitis, their sex, sac location, sac size, and presence of other other associated anomalies; analysis resulted in the maximum accuracy of 86% for the prediction of hydrocephalus occurrence. CONCLUSIONS According to the findings, the presence of other associated anomalies, a larger sac, and infections are significant independent predictors of hydrocephalus. By considering these 3 predictors as well as sac location and the patient's sex, it will be possible to predict hydrocephalus occurrence in patients with EC with significant accuracy.
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Affiliation(s)
- Samuel B Kankam
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirhosein Nejat
- 2Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran; and
| | - Amin Tavallaii
- 3Department of Pediatric Neurosurgery, Akbar Children's Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Keyvan Tayebi Meybodi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
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18
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Ohadi M, Maroufi SF, Meybodi KT, Safavi M, Nejat F, Habibi Z. Perinatal Presentation of a Congenital Intramedullary Capillary Hemangioma in a Neonate Born with Hydrocephalus and Paraplegia. Turk Neurosurg 2023; 33:912-915. [PMID: 37715604 DOI: 10.5137/1019-5149.jtn.41154-22.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/17/2023]
Abstract
Spinal intramedullary capillary hemangioma is a rare condition. Although most spinal/spinal cord hemangiomas are inborn in origin, perinatal presentation is uncommon. We present a neonate with an intramedullary hemangioma, born with communicating hydrocephalus and complete paraplegia. Spinal imagining showed an intradural mass with hemorrhagic foci, a low-lying conus medullaris, and scalloping of dorsal elements. Ventriculoperitoneal shunting was performed in an emergent setting, with cerebrospinal fluid showing a brownish appearance with high viscosity which implied a possible old hemorrhage. Tissue sample was taken from the spinal lesion in an elective setting. Histopathological examination revealed capillary lobules and extralobular large vessels resembling abnormal veins. The mentioned clues suggested that this congenital hemangioma had become symptomatic from the prenatal period. Though it is a are event, it should be kept in mind while evaluating a neonate with communicating hydrocephalus and weakness of extremities with or without cutaneous hemangiomatous stigmata.
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Affiliation(s)
- Mohammad Ohadi
- Tehran University of Medical Sciences, Children?s Medical Center Hospital, Department of Pediatric Neurosurgery, Tehran, Iran
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19
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Eslamian M, Habibi Z, Berchi Kankam S, Khoshnevisan A. Role of CSF flow parameters in diagnosis and management of persistent postoperative hydrocephalus. Interdisciplinary Neurosurgery 2022. [DOI: 10.1016/j.inat.2022.101634] [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: 10/16/2022] Open
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20
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Alikhani N, Shahedi M, Habibi Z, Yousefi M, Ghasemi S, Mohammadi M. A multi-component approach for co-immobilization of lipases on silica-coated magnetic nanoparticles: improving biodiesel production from waste cooking oil. Bioprocess Biosyst Eng 2022; 45:2043-2060. [DOI: 10.1007/s00449-022-02808-7] [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] [Received: 05/31/2022] [Accepted: 10/24/2022] [Indexed: 11/12/2022]
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21
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Verhaert DVM, Knackstedt C, Lankveld TAR, Den Uijl DW, Habibi Z, Westra SW, Hermans ANL, Betz K, Van Der Velden RMJ, Gawalko MM, Schotten U, Linz DK, Vernooy K. We all know A and B, but what about C? Exploring the management of modifiable risk factors in patients with atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.564] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The European Society of Cardiology (ESC) guidelines for the management of atrial fibrillation (AF) advise to treat AF according to the ABC pathway: A, anticoagulation, B, better symptom control, and C, comorbidities and cardiovascular risk factor management. Optimal treatment of comorbidities and risk factors slows AF progression and improves success rates of rhythm interventions for AF. However, several studies report underdiagnosis and therefore possible undertreatment for common cardiovascular comorbidities.
Purpose
This study aims to evaluate how common modifiable cardiovascular risk factors are managed in AF patients referred for catheter ablation.
Methods
This is a substudy of the ISOLATION study, a prospective cohort study including consecutive patients with paroxysmal or persistent AF referred for AF ablation. Screening for common modifiable risk factors for AF is structurally embedded in the work-up for AF ablation in the two participating centres. In the present study the prevalence of the following risk factors at this screening moment was assessed: (1) body mass index (BMI) above the target BMI for ablation (≥27 kg/m2), (2) hypertension, defined as on-site systolic blood pressure >130 mmHg and/or diastolic blood pressure >80 mmHg, (3) decreased glucose tolerance or diabetes mellitus, defined as HbA1c ≥6.5%, (4) dyslipidaemia, defined as low-density lipoprotein (LDL) ≥2.5 mmol/l, (5) regular alcohol consumption, defined as self-reported consumption of >15 standardized units/week, and (6) sleep disordered breathing (SDB), defined as apnoea-hypopnoea index (AHI) ≥15 assessed with home sleep tests (subset of patients).
Results
Among the 981 patients studied (median age 65 [59–71] years old, 64% male, 69% paroxysmal AF), previously diagnosed comorbidities were common (46% hypertension, 7% diabetes, 22% dyslipidaemia, 10% SDB), and a large proportion of patients received targeted treatment (Table 1). However, non-optimally managed risk factors remained significant (Figure 1). BMI ≥27 kg/m2 was present in 56% of patients. High systolic and diastolic blood pressure were present in 62% and 51% of patients, respectively, and any form of high blood pressure (either systolic or diastolic) was seen in 72% of patients. HbA1c was found to be above target ranges in 9% patients and LDL in 56%. A weekly alcohol consumption of ≥15 units was reported by 4% of patients. Screening for SDB was performed in a subset of patients (n=287), for whom AHI was ≥15 in 52%. Overall, 9% of patients had 4 or more non-optimally controlled modifiable risk factors, whereas the median number of modifiable risk factors was 2 [1–3].
Conclusions
Structural screening revealed a high prevalence of non-optimally controlled modifiable cardiovascular risk factors in patients referred for AF catheter ablation. According to recent ESC guidelines, improving treatment of comorbidities may improve AF ablation success rates and even reduce mortality.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- D V M Verhaert
- Maastricht University Medical Center and Radboud University Medical Center, Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht/Nijmegen , The Netherlands
| | - C Knackstedt
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - T A R Lankveld
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - D W Den Uijl
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - Z Habibi
- Maastricht University Medical Center and Radboud University Medical Center, Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht/Nijmegen , The Netherlands
| | - S W Westra
- Radboud University Medical Center , Nijmegen , The Netherlands
| | - A N L Hermans
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - K Betz
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - R M J Van Der Velden
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - M M Gawalko
- Maastricht University Medical Centre (MUMC), Department of cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - U Schotten
- Cardiovascular Research Institute Maastricht (CARIM), Department of physiology , Maastricht , The Netherlands
| | - D K Linz
- Maastricht University Medical Center and Radboud University Medical Center, Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht/Nijmegen , The Netherlands
| | - K Vernooy
- Maastricht University Medical Center and Radboud University Medical Center, Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM) , Maastricht/Nijmegen , The Netherlands
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22
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Farahanipour A, Bavandi H, Shahedi M, Habibi Z. Synthesis of 1 H-Pyrazolo[1,2- b]Phthalazine-5,10-Dione and 1 H-Pyrazolo[1,2- a]Pyridazine-5,8-Dione Derivatives by Bovine Serum Albumin in Water. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2128829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2022]
Affiliation(s)
- Alireza Farahanipour
- Department of Organic Chemistry, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Hossein Bavandi
- Department of Organic Chemistry, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Mansour Shahedi
- Department of Organic Chemistry, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Zohreh Habibi
- Department of Organic Chemistry, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
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23
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Maroufi SF, Sohrabi H, Dabbagh Ohadi MA, Mohammadi E, Habibi Z. Neurosurgery in 21st-Century Wars in the Middle East: Narrative Review of Literature. World Neurosurg 2022; 166:184-190. [PMID: 35944854 DOI: 10.1016/j.wneu.2022.07.134] [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: 05/27/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/15/2022]
Abstract
Military neurosurgery has played a crucial role in the development of neurosurgery over time. Much of this progress is due to war-related experiences. Owing to the number and severity of war injuries and the limitations caused by war, surgeons have had to examine different methods and design special protocols for patient management. Given that in recent decades most wars have taken place in the Middle East, many lessons can be learned by reviewing the experiences of neurosurgeons in these wars. Wars in Iraq, Syria, Afghanistan, Lebanon, and Yemen have been the largest and longest conflicts in the Middle East since the beginning of the 21st century, and a number of studies reported the experiences of surgeons in these wars. In this study, we reviewed the experience of military surgeons in managing war neurosurgical injuries in these areas within the last 2 decades.
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Affiliation(s)
- Seyed Farzad Maroufi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hanye Sohrabi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Dabbagh Ohadi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Esmaeil Mohammadi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
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Sadeghi P, Habibi Z, Ziaee V. Musculoskeletal pain in children, should we think about neuroblastoma? Clin Case Rep 2022; 10:e6284. [PMID: 36093442 PMCID: PMC9445260 DOI: 10.1002/ccr3.6284] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
A 9‐year‐old girl with progressive right leg pain, distributed to the pelvis and lower spine, diminished muscle force, and tendon reflex, was worked up thoroughly. Thoracolumbar MRI showed a well‐circumscribed homogenous enhanced extradural mass from L3‐L4 to S1. After surgery, a firm extradural mass was resected, and the pathologic finding was a neuroblastoma.
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Affiliation(s)
- Payman Sadeghi
- Children's Medical Center, Pediatrics Center of Excellence Tehran Iran
- Department of Pediatrics Tehran University of Medical Sciences Tehran Iran
| | - Zohreh Habibi
- Children's Medical Center, Pediatrics Center of Excellence Tehran Iran
- Department of Pediatric Neurosurgery Tehran University of Medical Sciences Tehran Iran
| | - Vahid Ziaee
- Children's Medical Center, Pediatrics Center of Excellence Tehran Iran
- Department of Pediatrics Tehran University of Medical Sciences Tehran Iran
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25
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Moguei MRS, Habibi Z, Shahedi M, Yousefi M, Alimoradi A, Mobini S, Mohammadi M. Immobilization of Thermomyces lanuginosus lipase through isocyanide-based multi component reaction on multi-walled carbon nanotube: application for kinetic resolution of rac-ibuprofen. Biotechnology Reports 2022; 35:e00759. [PMID: 36060211 PMCID: PMC9434027 DOI: 10.1016/j.btre.2022.e00759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/29/2022] [Accepted: 08/11/2022] [Indexed: 10/26/2022]
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Habibi Z, Meybodi AT, Lo WB, Zanon N. Editorial: Optic pathway glioma: A multidisciplinary entity, posing dilemmas in diagnosis and management. Front Surg 2022; 9:995404. [PMID: 35990103 PMCID: PMC9382243 DOI: 10.3389/fsurg.2022.995404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Zohreh Habibi
- Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Correspondance: Zohreh Habibi
| | - Ali Tayebi Meybodi
- New Jersey Medical School, Rutgers, The State University of New Jersey Newark, Newark, NJ, United States
| | - William B. Lo
- Department of Neurosurgery, Birmingham Children’s Hospital, Birmingham, United Kingdom
| | - Nelci Zanon
- Department of Neurosurgery, Federal University of São Paulo, São Paulo, Brazil
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Bavandi H, Shahedi M, Habibi Z, Yousefi M, Brask J, Mohammadi M. Biocatalytic decarboxylative Michael addition for synthesis of 1,4-benzoxazinone derivatives. Sci Rep 2022; 12:12713. [PMID: 35882869 PMCID: PMC9325775 DOI: 10.1038/s41598-022-16291-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/07/2022] [Indexed: 11/23/2022] Open
Abstract
The Candida antarctica lipase B (Novozym 435) is found to catalyze a novel decarboxylative Michael addition in vinylogous carbamate systems for the synthesis of 1,4-benzoxazinone derivatives. The reaction goes through Michael addition, ester hydrolysis and decarboxylation. A possible mechanism is suggested, with simultaneous lipase-catalyzed Michael addition and ester hydrolysis. The present methodology offers formation of complex products through multi-step reactions in a one pot process under mild and facile reaction conditions with moderate to high yields (51–90%) and no side product formation. The reaction seems to be is a great example of enzymatic promiscuity.
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Affiliation(s)
- Hossein Bavandi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Mansour Shahedi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran
| | - Zohreh Habibi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
| | - Jesper Brask
- Novozymes A/S, Krogshøjvej 36, 2880, Bagsværd, Copenhagen, Denmark
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Shahbandi A, Atashpanjeh S, Azari-Yam A, Nejat F, Habibi Z. LINC-09. Coexisting glioneuronal tumor and adrenal ganglioneuroma. Neuro Oncol 2022. [PMCID: PMC9164686 DOI: 10.1093/neuonc/noac079.608] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND: While both glial/glioneuronal neoplasia and ganglioneuroma have been reported as components of multiple primary neoplasms, no patient has been diagnosed with multiple primary neoplasms of cerebral glial/glioneuronal tumors with oligodendroglioma-like features and adrenal ganglioneuroma up to now. CASE: A previously healthy five-year-old girl was admitted with a two-week history of headaches and vomiting. Brain Magnetic resonance imaging (MRI) showed a massive heterogenous multi-cystic enhancing lesion in the right temporoparietal area with substantial vasogenic edema. The patient underwent craniotomy and tumor gross total resection. The intra-operative histomorphological assessment of the tumor was well-matched with a glial tumor. The patient developed systolic hypertension during postoperative care in the Intensive Care Unit. Subsequent abdominal CT scan unveiled a calcified mass of the left adrenal gland origin. Blood and urine catecholamine tests, vanillylmandelic acid (VMA), were within the normal range. The surgical excision specimen exhibited a clear cell neoplasm with diffuse infiltrative growth. A distinguishing combination of oligodendroglioma-like perinuclear haloes, clear cell appearance and vascular proliferation rendered the diffuse Glioneuronal tumor with Oligodendroglioma-like features. With the combination of oligodendroglial-like appearance, negative 1p/19q codeletion, Wild IDH, no BRAF mutation, weak GFAP, and positive synaptophysin altogether, the tumor was compatible with the novel diffuse glioneuronal tumor with oligodendroglioma-like features and nuclear clusters (DGONC). The patient underwent laparotomy and tumor resection subsequently. Morphologic histopathological examinations of the adrenal mass were in line with ganglioneuroma. After discharge, no pathological uptake was identified with iodine-131 meta-iodobenzylguanidine scan (MIBG scan). No tumor residue was apparent on postoperative brain MRI. The patient received no adjuvant therapy for brain and adrenal tumors and underwent close surveillance for both tumors. No clinical or radiologic recurrence was recognized after six months of follow-up. CONCLUSIONS: Concurrent glioneuronal tumor and ganglioneuroma can be managed safely when diagnosed timely, leading to favorable outcomes.
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Affiliation(s)
- Ataollah Shahbandi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences , Tehran, Tehran , Iran, Islamic Republic of
| | - Saeid Atashpanjeh
- Neuroscience Program, Biology Department, University of Hartford, West Hartford , Connecticut , USA
| | - Aileen Azari-Yam
- Molecular Pathology and Cytogenetics Division, Pathology Department, Children’s Medical Center, Tehran University of Medical Sciences , Tehran, Tehran , Iran, Islamic Republic of
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences , Tehran, Tehran , Iran, Islamic Republic of
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences , Tehran, Tehran , Iran, Islamic Republic of
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Berchi Kankam S, Ashrafi M, Tayebi Meybodi K, Sotoudeh Anvari M, Habibi Z, Nejat F. Lumbosacral non-terminal myelocystocele associated with teratoma: case report and review of literature. Childs Nerv Syst 2022; 38:1229-1232. [PMID: 34515813 DOI: 10.1007/s00381-021-05361-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/05/2021] [Indexed: 10/20/2022]
Abstract
Non-terminal myelocystoceles are commonly found in the cervical or thoracic spinal region. Their sac can rarely be associated with tumor. A rare case of an infant with a lumbosacral non-terminal myelocystocele and accompanying mature teratoma is reported in whom the tumor was attached to the placode not as a part of the sac.
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Affiliation(s)
- S Berchi Kankam
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - M Ashrafi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - K Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - M Sotoudeh Anvari
- Department of Pediatric Pathology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Z Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - F Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran.
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Amini Y, Shahedi M, Habibi Z, Yousefi M, Ashjari M, Mohammadi M. A multi-component reaction for covalent immobilization of lipases on amine-functionalized magnetic nanoparticles: production of biodiesel from waste cooking oil. BIORESOUR BIOPROCESS 2022; 9:60. [PMID: 38647849 PMCID: PMC10991503 DOI: 10.1186/s40643-022-00552-0] [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: 03/03/2022] [Accepted: 05/20/2022] [Indexed: 11/10/2022] Open
Abstract
A new approach was used for the immobilization of Thermomyces lanuginosus lipase (TLL), Candida antarctica lipase B (CALB), and Rhizomucor miehei lipase (RML) on amine-functionalized magnetic nanoparticles (Fe3O4@SiO2-NH2) via a multi-component reaction route (using cyclohexyl isocyanide). The used method offered a single-step and very fast process for covalent attachment of the lipases under extremely mild reaction conditions (25 °C, water, and pH 7.0). Rapid and simple immobilization of 20 mg of RML, TLL, and CALB on 1 g of the support produced 100%, 98.5%, and 99.2% immobilization yields, respectively, after 2 h of incubation. The immobilized derivatives were then used for biodiesel production from waste cooking oil. Response surface methodology (RSM) in combination with central composite rotatable design (CCRD) was employed to evaluate and optimize the biodiesel production. The effect of some parameters such as catalyst amount, reaction temperature, methanol concentration, water content for TLL or water-adsorbent for RML and CALB, and ratio of t-butanol (wt%) were investigated on the fatty acid methyl esters (FAME) yield.
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Affiliation(s)
- Yalda Amini
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Mansour Shahedi
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Zohreh Habibi
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Maryam Ashjari
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
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Maroufi SF, Habibi Z, Dabbagh Ohadi MA, Mohammadi E, Nejat F. Gorham-Stout disease of skull base leading to cranial settling and rhinorrhea: a case-based review. Childs Nerv Syst 2022; 38:695-703. [PMID: 35217940 DOI: 10.1007/s00381-021-05394-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/11/2021] [Indexed: 11/21/2022]
Abstract
PURPOSE Gorham-Stout disease (GSD) is a rare progressive osteolytic disorder, theoretically caused by lymphovascular endothelial proliferation. Spinal involvement carries a dismal prognosis because of neurological consequences. Lesions of the skull base are extremely rare and entail even more devastating prognosis due to cervical instability and cerebrospinal fluid (CSF) leakage. Due to scarcity of this condition, the aim of this study was to give an overview of skull base GSD and review the cases with such condition reported in the literature. METHODS In this case-based review, different aspects of skull base GSD are discussed, and a sample clinical case of GSD leading to cranial settling and rhinorrhea is presented. The characteristics, symptoms, and managements of all English-language PubMed-reported cases were reviewed, and different features of presentation and methods of treatments were analyzed. RESULTS Based on the literature review, most of the cases encountered serious problems in the course of the disease. Meningitis/CSF leakage was detected in 12 of 26 collected cases, followed by hearing loss/tinnitus/otitis media in 10 cases, headache in 8, and neck pain/stiffness in 8 patients. Despite a variety of treatments, improvement was only observed in 8 of 26 collected cases. The reminders showed either stable condition or worsening and death. CONCLUSION All cases of GSD of the skull base should be evaluated for rhinorrhea/otorrhea and cranial settling, both of them being among the most life-threatening conditions. Since definite treatment, in order to stop disease progression, is sometimes impossible, symptomatic and supportive treatment should be started as possible.
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Affiliation(s)
- Seyed Farzad Maroufi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, 1419733151, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, 1419733151, Tehran, Iran.
| | - Mohammad Amin Dabbagh Ohadi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, 1419733151, Tehran, Iran
| | - Esmaeil Mohammadi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, 1419733151, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, 1419733151, Tehran, Iran
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Ahrari F, Yousefi M, Habibi Z, Mohammadi M. Application of undecanedicarboxylic acid to prepare cross-linked enzymes (CLEs) of Rhizomucor miehei lipase (RML); Selective enrichment of polyunsaturated fatty acids. Molecular Catalysis 2022. [DOI: 10.1016/j.mcat.2022.112172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ebrahim Soltani Z, Hanaei S, Dabbagh Ohadi MA, Maroufi SF, Tayebi Meybodi K, Khademi S, Yaghmaei B, Ebrahim Soltani A, Nejat F, Habibi Z. Safety and efficacy of aprotinin versus tranexamic acid for reducing absolute blood loss and transfusion in pediatric patients undergoing craniosynostosis surgery: a randomized, double-blind, three-arm controlled trial. J Neurosurg Pediatr 2022; 29:551-559. [PMID: 35148511 DOI: 10.3171/2021.12.peds21532] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/16/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Craniosynostosis surgery is associated with considerable blood loss and need for transfusion. Considering the lower estimated blood volume (EBV) of children compared to adults, excessive blood loss may quickly lead to hypovolemic shock. Therefore, reducing blood loss is important in craniosynostosis surgery. This study was conducted to evaluate the efficacy of aprotinin or tranexamic acid (TXA) in blood loss reduction in these patients. METHODS In the current randomized controlled trial, 90 eligible pediatric patients with craniosynostosis were randomly divided into three groups to receive either aprotinin, TXA, or no intervention. The absolute blood loss and transfusion amount were assessed for all patients both intraoperatively and 2 and 8 hours postoperatively. RESULTS Although crude values of estimated blood loss were not significantly different between groups (p = 0.162), when adjusted to the patient's weight or EBV, the values reached the significance level (p = 0.018), particularly when the aprotinin group was compared to the control group (p = 0.0154). The EBV losses 2 hours and 8 hours postoperatively significantly dropped in the TXA and aprotinin groups compared to the control group (p = 0.001 and p < 0.001, respectively). Rates of postoperative blood transfusion were significantly higher in the control group (p = 0.024). Hemoglobin and hematocrit 8 hours postoperatively were lower in the control group than in the TXA or aprotinin treatment groups (p < 0.002 and p < 0.001, respectively). There were no serious adverse events associated with the interventions in this study. CONCLUSIONS Aprotinin and TXA can reduce blood loss and blood transfusion without serious complications and adverse events in pediatric patients undergoing craniosynostosis surgery.
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Affiliation(s)
| | | | | | | | | | | | - Bahareh Yaghmaei
- 3Pediatric Intensive Care Medicine, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Mohammadi E, Azadnajafabad S, Goudarzi M, Tayebi Meybodi K, Nejat F, Habibi Z. Single-dose antibiotic prophylaxis compared with multiple-dose protocol in clean pediatric neurosurgical interventions: a nonrandomized, historically controlled equivalence trial. J Neurosurg Pediatr 2021:1-8. [PMID: 34861647 DOI: 10.3171/2021.9.peds21416] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 09/16/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Guidelines recommend antimicrobial prophylaxis (AMP) preoperatively for "clean" spinal and cranial surgeries, while dose and timing remain controversial. The use of multiple-dose AMP for such surgeries is under debate in the pediatric context. In this clinical study, the authors aimed to compare single-dose with multiple-dose prophylactic antibiotic usage in cranial and spinal neurosurgical interventions of pediatric patients. METHODS All neurosurgical patients aged 28 days to 18 years who underwent surgery at a single tertiary center were assessed. Three cohorts (noninstrumented clean spinal, noninstrumented cranial, and instrumented cranial interventions), each of which comprised two 50-patient arms (i.e., single-dose AMP and multiple-dose AMP), were included after propensity score-matched retrospective sampling and power analysis. Records were examined for surgical site infections. Using a previously published meta-analysis as the prior and 80% acceptance of equivalence (margin of OR 0.88-1.13), logistic regression was carried out for the total cohort and each subcohort and adjusted for etiology by consideration of multiple-dose AMP as reference. RESULTS The overall sample included 300 age- and sex-matched patients who were evenly distributed in 3 bi-arm cohorts. There was no statistical intercohort difference based on etiology or type of operation (p < 0.05). Equivalence analysis revealed nondiscriminating results for the total cohort (adjusted OR 0.65, 95% CI 0.27-1.57) and each of the subcohorts (noninstrumented clean spinal, adjusted OR 0.65, 95% CI 0.12-3.44; noninstrumented cranial, adjusted OR 0.52, 95% CI 0.14-2.73; and instrumented cranial, adjusted OR 0.68, 95% CI 0.13-3.31). CONCLUSIONS No significant benefit for multiple-dose compared with single-dose AMPs in any of the pediatric neurosurgery settings could be detected. Since unnecessary antibiotic use should be avoided as much as possible, it seems that usage of single-dose AMP is indicated.
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Affiliation(s)
- Esmaeil Mohammadi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran
| | - Sina Azadnajafabad
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran.,2Department of Surgery, Tehran University of Medical Sciences, Tehran; and
| | - Mehrdad Goudarzi
- 3Department of Pediatric Anesthesiology, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran
| | - Farideh Nejat
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran
| | - Zohreh Habibi
- 1Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran
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Abstract
BACKGROUND Vanishing brain tumor is defined as spontaneously disappearing or decreasing of the initial brain mass volume to ≤ 70% before establishing the definitive diagnosis. The condition is rare and can be attributed to different factors. The exact mechanism is under debate, but the increasing rate and accuracy of neuroimaging studies and occurrence of similar scenario in other pathologies rather than brain tumors can be of particular importance in finding vanishing brain lesions. CASE REPORT We present two unusual cases of congenital brain masses which underwent spontaneous shrinkage within the first months of life. CONCLUSION The condition is scarcely observed in congenital brain masses. As congenital brain lesions are distinct entities with peculiar characteristics, this rare phenomenon may reflect different aspects in this age group.
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Affiliation(s)
- Ghazaleh Kheiri
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran.
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
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Kankam SB, Kheiri G, Safavi M, Habibi Z, Nejat F. Isolated primary spinal epidural hydatid cyst in a child with progressive paraparesis. Childs Nerv Syst 2021; 37:3261-3264. [PMID: 33683421 DOI: 10.1007/s00381-021-05100-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 02/24/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Primary spinal hydatid cyst is a rare but serious condition which occurs in about 1% of patients with hydatid disease. This disease may result in severe spinal cord compression presenting with various neurological deficits. CASE REPORT A 3-year-old boy was referred to our center with progressive weakness of lower limbs, frequency, and urinary incontinence. His parents did not report back pain during child's illness. Lumbar magnetic resonance imaging (MRI) revealed an extradural well-defined thin-walled cystic lesion at L4 to S3 vertebral levels without enhancement. The cyst had compressed the thecal sac associated with bone scalloping of vertebral bodies and posterior elements. Osteoplastic laminectomy of L4-L5 and laminectomy of S1-S3 was done. Intraoperative and histopathological findings indicated an epidural hydatid cyst. CONCLUSION Although spinal hydatid cysts are rare but might be considered in the differential diagnosis of any patient with signs and symptoms of spinal cord compression. The pathophysiology, clinical manifestations, epidemiology, diagnosis, and surgical treatment of extradural hydatid cyst are discussed.
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Affiliation(s)
- Samuel Berchi Kankam
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - Ghazaleh Kheiri
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - Moeinadin Safavi
- Department of Pathology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran.
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Moradi E, Sabeti M, Shahbazi N, Habibi Z, Nejat F. Machine Learning-Based Clinical Adjusted Selection of Predicting Risk Factors for Shunt Infection in Children. Int Clin Neurosci J 2021. [DOI: 10.34172/icnj.2021.28] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Shunt Infection is a common complication of shunt insertion in children which can lead to bad neuro-developmental conditions and impose a considerable economic burden for the health care system. So, identifying predictive factors of shunt infection could help us in the proper improvement of this deteriorating condition. Methods: In this study, related risk factors of 68 patients with history of shunt infection and 80 matched controls without any history of shunt infection, who were all operated in a single referral hospital were assessed. Three machine learning (ML)-based measures including sparsity, correlation, and redundancy along with specialist’s score were applied to select the most important predictive risk factors for shunt infection. ML was determined by summation of sparsity, correlation and redundancy measures, and the final total score was considered as normalization (ML-based score + specialist score). Results: According to the total score, prematurity, first ventriculoperitoneal shunting (VPS) age, intraventricular hemorrhage (IVH), myelomeningocele (MMC) and low birth weight had higher weights as shunt infection risk factors. icterus, trauma, co-infection and tumor had the lowest weights and history of meningitis and number of shunt revisions were defined as intermediate risk factors. Conclusion: The "ML-based clinical adjusted" method may be used as a complementary tool to help neurosurgeons in better patient selection and more accurate follow-up of children with higher risk of shunt infection.
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Affiliation(s)
- Ehsan Moradi
- Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Malihe Sabeti
- Department of Computer Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Nasrin Shahbazi
- Department of Computer Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Zohreh Habibi
- Department of Neurosurgery, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Neurosurgery, Tehran University of Medical Sciences, Tehran, Iran
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Safavi M, Mehrtash V, Habibi Z, Mohammadpour M, Haghi Ashtiani MT, Sotoudeh Anvari M, Zaresharifi N, Shafizadeh M, Jafarzadeh B. Case Report: Encephalitis Caused by Balamuthia mandrillaris in a 3-Year-Old Iranian Girl. Am J Trop Med Hyg 2021; 104:1836-1840. [PMID: 33720845 PMCID: PMC8103465 DOI: 10.4269/ajtmh.20-1257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 01/22/2021] [Indexed: 11/07/2022] Open
Abstract
It is about half a century since free-living amoebae were recognized as pathogenic organisms, but there is still much we should learn about these rare fatal human infectious agents. A recently introduced causative agent of granulomatous amoebic encephalitis, Balamuthia mandrillaris, has been reported in a limited number of countries around the world. A 3-year-old girl was referred to our tertiary hospital because of inability to establish a proper diagnosis. She had been experiencing neurologic complaints including ataxia, altered level of consciousness, dizziness, seizure, and left-sided hemiparesis. The patient's history, physical examination results, and laboratory investigations had led to a wide differential diagnosis. Computed tomography (CT) scan and magnetic resonance imaging analyses revealed multiple mass lesions. As a result, the patient underwent an intraoperative frozen section biopsy of the brain lesion. The frozen section study showed numerous cells with amoeba-like appearances in the background of mixed inflammatory cells. Medications for free-living amoebic meningoencephalitis were administered. PCR assay demonstrated B. mandrillaris as the pathogenic amoeba. Unfortunately, the patient died 14 days after her admission. To our knowledge, this is the first report of B. mandrillaris meningoencephalitis in the Middle East and the first time we have captured the organism during a frozen-section study.
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Affiliation(s)
- Moeinadin Safavi
- Pathology Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran;,Address correspondence to Moeinadin Safavi or Vahid Mehrtash, Pathology Department, Children’s Medical Center, No. 62, Dr Gharib St., Tehran 1419733151, Iran. E-mails: or
| | - Vahid Mehrtash
- Pathology Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran;,Address correspondence to Moeinadin Safavi or Vahid Mehrtash, Pathology Department, Children’s Medical Center, No. 62, Dr Gharib St., Tehran 1419733151, Iran. E-mails: or
| | - Zohreh Habibi
- Neurosurgery Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Mohammadpour
- Pediatric Intensive Care Division, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Maryam Sotoudeh Anvari
- Pathology Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nooshin Zaresharifi
- Pathology Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Milad Shafizadeh
- Neurosurgery Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Bita Jafarzadeh
- Pathology Department, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Habibi Z, Hajizadeh M, Nozarian Z, Safavi M, Monajemzadeh M, Meybodi KT, Nejat F, Vasei M. Cytomegalovirus DNA in non-glioblastoma multiforme brain tumors of infants. Childs Nerv Syst 2021; 37:1581-1586. [PMID: 33409619 DOI: 10.1007/s00381-021-05038-6] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/03/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE CMV antigens have been detected in some brain tumors specially glioblastoma multiforme (GBM). As brain tumors in the first years of life are among the most aggressive neoplasms with poor prognosis, novel therapeutic options like targeted therapy against virus antigens are demanded. Infantile central nervous system tumors, other than GBM, have not been so far studied for CMV. To our best knowledge, this is the first study in which the presence of CMV-DNA, as a potential viral target for therapy, in non-GBM infantile brain tumors has been investigated. METHODS The paraffin blocks of non-GBM brain neoplasms of 36 infants (age < 24 months) who were operated on between 2006 and 2016 were examined for CMV-DNA, using real-time polymerase chain reaction (PCR). Paraffin blocks of CMV infected lung tissue were used as positive control. Extraction and amplification of β2 microglobulin gene from each tumor tissue were carried as positive internal control. We also assayed 25 paraffin blocks of meningomyelocele for CMV DNA as negative tissue controls. RESULTS Histopathological diagnoses consisted of 13 glial/neuroglial tumors (36.1%), 8 ependymomas (22.2%), 7 medulloblastomas (19.4%), 3 choroid plexus tumors (8.3%), 2 atypical teratoid rhabdoid tumors (5.6%), 2 embryonal CNS tumors (5.6%), and 1 germ cell tumor (2.8%). We could not detect CMV DNA in all samples examined. CONCLUSION Although CMV may be associated with GBM, no role could be proposed for this virus in development of non-GBM infantile brain tumors. Further investigations on larger series of brain tumors should be conducted to confirm or rule out our conclusion.
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Affiliation(s)
- Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Hajizadeh
- Department of Pediatric Pathology, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Nozarian
- Department of Pediatric Pathology, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Moeinadin Safavi
- Department of Pediatric Pathology, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Monajemzadeh
- Department of Pediatric Pathology, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Vasei
- Cell-based Therapies Research Center, Digestive Disease Research Institute, Shariati Hospital, Tehran University of Medical Science, Tehran, Iran.
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Affiliation(s)
- Moeinadin Safavi
- Pathology Department, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Vasei
- Cell-Based Therapy Research Center, Digestive Diseases Research Institute, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Neurosurgery Department, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Mohammadi E, Hanaei S, Azadnajafabad S, Tayebi Meybodi K, Habibi Z, Nejat F. The effect of external ventricular drain tunneling length on CSF infection rate in pediatric patients: a randomized, double-blind, 3-arm controlled trial. J Neurosurg Pediatr 2021; 27:525-532. [PMID: 33740757 DOI: 10.3171/2020.9.peds20748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 09/21/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The role of tunneling an external ventricular drain (EVD) more than the standard 5 cm for controlling device-related infections remains controversial. METHODS This is a randomized, double-blind, 3-arm controlled trial done in the Children's Medical Center in Tehran, Iran. Pediatric patients (< 18 years old) with temporary hydrocephalus requiring an EVD and no evidence of CSF infection or prior EVD insertion were enrolled. Patients were randomly assigned (1:1:1) into the following arms: 5-cm (standard; group A); 10-cm (group B); or 15-cm (group C) EVD tunnel lengths. The investigators, parents, and person performing the analysis were masked. The surgeon was informed of the length of the EVD by the monitoring board just before operation. Patients were followed until the EVD's fate was established. Infection rate and other complications related to EVDs were assessed. RESULTS A total of 105 patients were enrolled in three random groups (group A = 36, group B = 35, and group C = 34). The EVD was removed because there was no further need in most cases (67.6%), followed by conversion to a new EVD or ventriculoperitoneal shunt (15.2%), infection (11.4%), and spontaneous discharge without further CSF diversion requirement (5.7%). No statistical difference was found in infection rate (p = 0.47) or EVD duration (p = 0.81) between the three groups. No group reached the efficacy point sooner than the standard group (group B: hazard ratio 1.21, 95% CI 0.75-1.94, p = 0.429; group C: hazard ratio 1.03, 95% CI 0.64-1.65, p = 0.91). CONCLUSIONS EVD tunnel lengths of 5 cm and longer did not show a difference in the infection rate in pediatric patients. Indeed, tunneling lengths of 5 cm and greater seem to be equally effective in preventing EVD infection. Clinical trial registration no.: IRCT20160430027680N2 (IRCT.ir).
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Affiliation(s)
- Esmaeil Mohammadi
- Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Hanaei
- Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sina Azadnajafabad
- Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Kheiri G, Naderian N, Karami S, Habibi Z, Nejat F. Prenatal ventriculomegaly: natural course, survival, and neurodevelopmental status. J Neurosurg Pediatr 2021; 27:497-502. [PMID: 33668033 DOI: 10.3171/2020.9.peds20612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/04/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Prenatal ventriculomegaly is classified as mild, moderate, or severe based on the atrium diameter. The natural course and intrauterine progression of mild and moderate ventriculomegaly associated with the neurodevelopmental status of these children has been widely reported. METHODS One hundred twenty-two pregnancies with mild and moderate ventriculomegaly referred to the pediatric neurosurgery clinic of Children's Medical Center between 2010 and 2018 were retrospectively studied. The authors collected demographic and first and sequential ultrasonographic information, associated abnormalities, information about pregnancy outcomes, and the latest developmental status of these children according to Centers for Disease Control and Prevention criteria by calling parents at least 1 year after birth. RESULTS The mean gestational age at the time of diagnosis was 29.1 weeks, and 53% of fetuses were female. The width of the atrium was registered precisely in 106 cases, in which 61% had mild and 39% had moderate ventriculomegaly. Information on serial ultrasound scans was collected in 84 cases in which ventriculomegaly regressed in 5, remained stable in 67, and progressed in 12 patients. Fourteen cases (29.7%) in the mild ventriculomegaly group and 6 cases (16.2%) in the moderate group had associated abnormalities, with corpus callosum agenesis as the most frequent abnormality. The survival rate was 80% in mild and 89.4% in moderate ventriculomegaly. Considering survival to live birth and progression of the ventriculomegaly, the survival rate was 100% in regressed, 97% in stable, and 41.6% in progressed ventricular width groups (p < 0.001). Neurodevelopmental status was evaluated in 73 cases and found to be normal in 69.8% of the cases; 16.4% of children had mild delay, and 5.4% and 8.2% of cases were diagnosed with moderate and severe delays, respectively. CONCLUSIONS In spite of a high rate of missed data in our retrospective study, most patients with mild or moderate ventriculomegaly had a stable or regressed course. Most cases had near-normal developmental status. Prospective studies with a larger sample size and detailed developmental evaluation tests are needed to answer the questions related to the natural course, survival, and prognosis of prenatal ventriculomegaly.
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Affiliation(s)
- Ghazaleh Kheiri
- Department of Neurosurgery, Children’s Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Negin Naderian
- Department of Neurosurgery, Children’s Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Sajedeh Karami
- Department of Neurosurgery, Children’s Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Zohreh Habibi
- Department of Neurosurgery, Children’s Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Farideh Nejat
- Department of Neurosurgery, Children’s Medical Center, Tehran University of Medical Science, Tehran, Iran
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Habibi Z, Hadi NA, Kim EE, Alkhataybeh RAM, Sbeih A, Abou-Hamden A, Abdulsalam HKA, Shehhi NA, Al-Azzani R, Garozzo D, Hasan A, Namer T, Quadamkhear H, Zabihyan S, Nejat F, Rosseau G. Progress in neurosurgery: Contributions of women neurosurgeons in the Middle East. J Clin Neurosci 2021; 86:337-346. [PMID: 33653667 DOI: 10.1016/j.jocn.2021.01.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/29/2021] [Accepted: 01/31/2021] [Indexed: 11/15/2022]
Abstract
The Middle East is known for its complex history and rich environment and culture. The region is home to a wide variety of traditions, cultures and religions, which have made the area vulnerable to political conflicts. Despite these difficulties, science and medicine have always thrived in the region, with many medical practices and principles established by physicians and scholars living in the Middle East. The first academic neurosurgical activity in the region started in the 1950s. The first women neurosurgeons in the Middle East started training in the 1970s, and were from Iran, Palestine, followed by Saudi Arabia in the 1970s. These pioneers have encountered serious challenges, yet have become role models for the next generation. These women have paved the way and facilitated neurosurgical training and practice for more women surgeons. The gradual increase in the number of women neurosurgical residents in the region leads to the expectation that women will play a more prominent role in the future as leaders in neurosurgery in the Middle East. This collaborative study, which identifies the known women neurosurgeons in the Middle East for the first time, may serve to provide background and context for further contributions of women neurosurgeons for our profession and our patients.
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Affiliation(s)
- Zohreh Habibi
- Tehran University of Medical Science, Children's Medical Center, No 63, Gharib Ave, Keshavarz Blv, Tehran, Iran
| | - Nada Ayedh Hadi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Rimayah, Al Hars Al Watani, Riyadh, Saudi Arabia
| | - Eliana E Kim
- University of California-San Francisco School of Medicine, 513 Parnassus Ave. Suite S-245, San Francisco, CA 94143-0454, United States; Gender Equity Initiative in Global Surgery, 641 Huntington Avenue, Boston, MA, United States.
| | | | - Aseel Sbeih
- Department of Neurosurgery, Jordanian Royal Medical Services, PO Box 855122, Amman, Jordan
| | - Amal Abou-Hamden
- Department of Neurosurgery, Royal Adelaide Hospital, University of Adelaide, 1 Port Road, Adelaide 5000, Australia.
| | - Hissah K Al Abdulsalam
- Division of Neurosurgery, King Saud University, P.O.Box: 266, Riyadh 11362, Saudi Arabia
| | - Noora Al Shehhi
- Tawam Hospital, Maqam Street, Al Ain, Abu Dhabi, United Arab Emirates.
| | - Roqia Al-Azzani
- Department of Neurosurgery, Al-Thwra Modern General Hospital, Sana'a, Yemen
| | - Debora Garozzo
- Mediclinic Parkview Hospital, Umm Suquim, Al Barsha South 3 PO BOX 51122, Dubai, United Arab Emirates.
| | - Alya Hasan
- Neurosurgery Department, Ibn Sina Hospital, Jamal Abdel Nasser Street, PO Box 5, 13001, Kuwait
| | - Thana Namer
- Division of Neurosurgery, King AbdulAziz Medical City, Ministry of National Guard Health Affairs, Prince Mutib Ibn Abdullah Ibn Abdulaziz Rd, Ar Rimayah, Riyadh, Saudi Arabia.
| | - Hama Quadamkhear
- Department of Neurosurgery, Rozhawa Hospital, 100 Meter Street, Erbil 44001, Iraq
| | - Samira Zabihyan
- Department of Neurosurgery, Ghaem Hospital, Mashhad University of Medical Sciences, Ahmadabad Blvd., Mashhad, Iran
| | - Farideh Nejat
- Tehran University of Medical Science, Children's Medical Center, No 63, Gharib Ave, Keshavarz Blv, Tehran, Iran.
| | - Gail Rosseau
- Department of Neurosurgery, George Washington University School of Medicine and Health Sciences, 2150 Pennsylvania Avenue, NW Washington, DC 20037, United States
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Mohammadi E, Ghasemi E, Azadnajafabad S, Rezaei N, Saeedi Moghaddam S, Ebrahimi Meimand S, Fattahi N, Habibi Z, Karimi Yarandi K, Amirjamshidi A, Nejat F, Kompani F, Mokdad AH, Larijani B, Farzadfar F. A global, regional, and national survey on burden and Quality of Care Index (QCI) of brain and other central nervous system cancers; global burden of disease systematic analysis 1990-2017. PLoS One 2021; 16:e0247120. [PMID: 33617563 PMCID: PMC7899371 DOI: 10.1371/journal.pone.0247120] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 02/01/2021] [Indexed: 11/22/2022] Open
Abstract
Primary brain and other central nervous system (CNS) cancers cause major burdens. In this study, we introduced a measure named the Quality of Care Index (QCI), which indirectly evaluates the quality of care given to patients with this group of cancers. Here we aimed to compare different geographic and socioeconomic patterns of CNS cancer care according to the novel measure introduced. In this regard, we acquired age-standardized primary epidemiologic measures were acquired from the Global Burden of Disease (GBD) study 1990-2017. The primary measures were combined to make four secondary indices which all of them indirectly show the quality of care given to patients. Principal Component Analysis (PCA) method was utilized to calculate the essential component named QCI. Further analyses were made based on QCI to assess the quality of care globally, regionally, and nationally (with a scale of 0-100 which higher values represent better quality of care). For 2017, the global calculated QCI was 55.0. QCI showed a desirable condition in higher socio-demographic index (SDI) quintiles. Oppositely, low SDI quintile countries (7.7) had critically worse care quality. Western Pacific Region with the highest (76.9) and African Region with the lowest QCIs (9.9) were the two WHO regions extremes. Singapore was the country with the maximum QCI of 100, followed by Japan (99.9) and South Korea (98.9). In contrast, Swaziland (2.5), Lesotho (3.5), and Vanuatu (3.9) were countries with the worse condition. While the quality of care for most regions was desirable, regions with economic constraints showed to have poor quality of care and require enforcements toward this lethal diagnosis.
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Affiliation(s)
- Esmaeil Mohammadi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Erfan Ghasemi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sina Azadnajafabad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Negar Rezaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Saeedi Moghaddam
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepideh Ebrahimi Meimand
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Fattahi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Neurosurgery, Children’s Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kourosh Karimi Yarandi
- Department of Neurosurgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Amirjamshidi
- Department of Neurosurgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Neurosurgery, Children’s Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Kompani
- Division of Hematology and Oncology, Children’s Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali H. Mokdad
- Institute for Health Metrics and Evaluation, University of Washington and the Department of Health Metrics Sciences, University of Washington, Seattle, WA, United States of America
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Nejat A, Habibi Z, Nejat F. Lumbosacral Lipomyelomeningocele with Lateral Attachment to Neural Placode: Case Illustration. Pediatr Neurosurg 2021; 56:312-314. [PMID: 33780945 DOI: 10.1159/000513409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/26/2020] [Indexed: 11/19/2022]
Affiliation(s)
- Amirhosein Nejat
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Zohreh Habibi
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Farideh Nejat
- Department of Neurosurgery, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
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Shahedi M, Habibi Z, Yousefi M, Brask J, Mohammadi M. Improvement of biodiesel production from palm oil by co-immobilization of Thermomyces lanuginosa lipase and Candida antarctica lipase B: Optimization using response surface methodology. Int J Biol Macromol 2020; 170:490-502. [PMID: 33383081 DOI: 10.1016/j.ijbiomac.2020.12.181] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 12/14/2022]
Abstract
Candida antarctica lipase B (CALB) and Thermomyces lanuginose lipase (TLL) were co-immobilized on epoxy functionalized silica gel via an isocyanide-based multicomponent reaction. The immobilization process was carried out in water (pH 7) at 25 °C, rapidly (3 h) resulting in high immobilization yields (100%) with a loading of 10 mg enzyme/g support. The immobilized preparations were used to produce biodiesel by transesterification of palm oil. In an optimization study, response surface methodology (RSM) and central composite rotatable design (CCRD) methods were used to study the effect of five independent factors including temperature, methanol to oil ratio, t-butanol concentration and CALB:TLL ratio on the yield of biodiesel production. The optimum combinations for the reaction were CALB:TLL ratio (2.1:1), t-butanol (45 wt%), temperature (47 °C), methanol: oil ratio (2.3). This resulted in a FAME yield of 94%, very close to the predicted value of 98%.
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Affiliation(s)
- Mansour Shahedi
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Zohreh Habibi
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran.
| | - Maryam Yousefi
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
| | - Jesper Brask
- Novozymes A/S, Krogshøjvej 36, 2880 Bagsværd, Copenhagen, Denmark
| | - Mehdi Mohammadi
- Bioprocess Engineering Department, Institute of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Habibi Z, Ebrahimi H, Meybodi KT, Yaghmaei B, Nejat F. Clinical Follow-Up of Patients with Neurocutaneous Melanosis in a Tertiary Center; Proposed Modification in Diagnostic Criteria. World Neurosurg 2020; 146:e1063-e1070. [PMID: 33246180 DOI: 10.1016/j.wneu.2020.11.091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 10/17/2020] [Revised: 11/14/2020] [Accepted: 11/16/2020] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Neurocutaneous melanosis (NCM) is a rare congenital syndrome. Except for some retrospective studies, information on clinical follow-up and management of these patients are limited. This study aimed to review our experience on diagnostic protocol and clinical follow-up of patients with NCM in a referral children's hospital in Iran. METHODS Between 2012 and 2019, eight patients with NCM were consecutively managed in our center. Brain magnetic resonance imaging and cutaneous biopsy were done in all patients at diagnosis. Follow-up surveillance and characteristics of the disease are described. RESULTS The mean follow-up period was 25.75 ± 13.81 months, and 75% of patients were male. Most magnetic resonance imaging findings were hypersignal lesions in the temporal lobe (75%), cerebellum (62.5%), brainstem (50%), and thalamus (12.5%). Dandy-Walker syndrome was found in 4 patients (50%), and shunt-dependent hydrocephalus was found in 3 patients (37.5%). Cutaneous malignant melanoma and malignant involvement of the central nervous system were found in 2 (25%) and 3 cases (37.5%), respectively. The mortality rate was 37.5%. CONCLUSIONS There are no specific guidelines for management of NCM due to the rarity of the disease. This study proposed modifications in diagnostic criteria, as well as recommendations for follow-up surveillance.
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Affiliation(s)
- Zohreh Habibi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Hannan Ebrahimi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Keyvan Tayebi Meybodi
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahareh Yaghmaei
- Department of Pediatric Intensive Care Medicine, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Pediatric Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Bavandi H, Habibi Z, Yousefi M. Porcine pancreas lipase as a green catalyst for synthesis of bis-4-hydroxy coumarins. Bioorg Chem 2020; 103:104139. [DOI: 10.1016/j.bioorg.2020.104139] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/09/2020] [Accepted: 07/22/2020] [Indexed: 01/06/2023]
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Habibi Z, Golpayegani M, Ashjaei B, Tayebi Meybodi K, Nejat F. Suprahepatic space as an alternative site for distal catheter insertion in pseudocyst-associated ventriculoperitoneal shunt malfunction. J Neurosurg Pediatr 2020; 26:247-254. [PMID: 32413860 DOI: 10.3171/2020.3.peds19772] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/09/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Distal catheter malfunction due to pseudocyst formation or intraabdominal adhesion is a significant problem, especially in pediatric patients who have limited sites for distal catheter insertion. In this study, the authors present a series of 12 patients with intractable distal shunt malfunctions due to peritoneal pseudocyst formation who underwent distal catheter replacement in the suprahepatic space to reduce the risk of distal catheter malfunction. METHODS Twelve consecutive patients with shunt malfunction due to pseudocyst formation who had undergone ventriculosuprahepatic shunting from 2014 to 2019 were identified. According to medical records, after primary evaluations, shunt removal, and antibiotic therapy, they underwent revision surgeries with placement of a distal catheter into the suprahepatic space. RESULTS Nine boys and 3 girls, ranging in age from 5 months to 14 years, with one or more episodes of pseudocyst formation, underwent shunt revision with placement of a distal catheter into the suprahepatic space. After a median follow-up of 31 months, none of the patients experienced further distal malfunction. CONCLUSIONS The suprahepatic space appears to be a safe place to secure the distal end of a ventricular catheter following pseudocyst formation, with less risk of re-adhesion. This lower risk might be attributable to the lack of omentum in the suprahepatic space.
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Affiliation(s)
| | | | - Bahar Ashjaei
- 2Pediatric Surgery, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Heidary M, Ghasemi S, Habibi Z, Ansari F. Biotransformation of androst-4-ene-3,17-dione and nandrolone decanoate by genera of Aspergillus and Fusarium. Biotechnol Lett 2020; 42:1767-1775. [PMID: 32358727 DOI: 10.1007/s10529-020-02902-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/24/2020] [Accepted: 04/27/2020] [Indexed: 11/24/2022]
Abstract
The ability of five fungal species belonging to two genera of Aspergillus and Fusarium has been examined in the microbial transformation of androst-4-ene-3, 17-dione (AD). Furthermore, the biotransformation of nandrolone decanoate (2) by F. fujikuroi has been studied. AD (1) was converted by cultures of Aspergillus sp. PTCC 5266 to form 11α-hydroxy-AD (3) as the only product, with a yield of 86% in 3 days. Moreover, two hydroxylated metabolites 11α-hydroxy-AD (3, 65%) and 7β-hydroxy-AD (4; 18%) were isolated in biotransformation of AD by A. nidulans. On the other hand, it was metabolized by F. oxysporum to produce 14α-hydroxy-AD (5; 38%) and testosterone (6; 12%). Microbial transformation of AD by F. solani led to the production of 11α-hydroxy-AD (3; 54%) and testosterone (6; 14%). AD was reduced at the 17-position by F. fujikuroi to produce testosterone in the yield of 42%. Finally, nandrolone decanoate was transformed by F. fujikuroi via hydrolysis and oxidation at the 17-position to produce two metabolites namely 17β-hydroxyestr-4-en-3-one (7, 25.4%) and estr-4-en-3,17-dione (8, 33%), respectively. The all metabolites were purified and subsequently identified based on their spectra data analysis and comparing them to the literature data.
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Affiliation(s)
- Marjan Heidary
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C, Tehran, Iran
| | - Saba Ghasemi
- Department of Chemistry, Ilam Branch, Islamic Azad University, Ilam, Iran.
| | - Zohreh Habibi
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C, Tehran, Iran.
| | - Fatemeh Ansari
- Department of Pure Chemistry, Faculty of Chemistry, Shahid Beheshti University, G.C, Tehran, Iran
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