All Stories

  1. Effects of Body Position on Cochlear Function in Infants: An Otoacoustic Emission Study

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, November 2023, Springer Science + Business Media

    Prof. Nader saki

  2. Audiologic Profile of Chronic Otitis Media with Effusion in Children

    Article • Jundishapur Journal of Chronic Disease Care, October 2023, Kowsar Medical Institute

    Prof. Nader saki

  3. Epidemiological and Demographic Study of Patients with Mucormycosis and COVID-19

    Article • Journal of Mycology and Infection, June 2023, Korean Society for Medical Mycology

    Prof. Nader saki

  4. Vestibular rehabilitation therapy in combination with transcranial direct current stimulation (tDCS) for treatment of chronic vestibular dysfunction in the elderly: a double-blind randomized controlled trial

    Article • Brazilian Journal of Otorhinolaryngology, September 2022, Elsevier

    Prof. Nader saki

  5. The Comparison of Speech Intelligibility between the Cochlear Implanted and Normal-Hearing Children

    Article • Medical Journal of the Islamic Republic of Iran, October 2021, Academic World Research

    Prof. Nader saki

  6. Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019: a pooled analysis of 1201 population-representative studies with 104 million participants

    Article • The Lancet, September 2021, Elsevier

    DR Bontha Veerraju Babu, Prof Suhad M Bahijri, Professor Yousef Khader, Dr Shariful Islam, Professor Erkin Mirrakhimov, Haroldo FERREIRA, Prof. Nader saki

  7. Vestibular Hypersensitivity in Patients with Chronic Noise Exposure

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, July 2021, Springer Science + Business Media

    Prof. Nader saki

  8. Cortical Auditory Plasticity Following Cochlear Implantation in Children With Auditory Neuropathy Spectrum Disorder: A Prospective Study

    Article • Otology & Neurotology, June 2021, Wolters Kluwer Health

    Prof. Nader saki

  9. Prevalence of Allergic Rhinitis in Children with Adenotonsillar Hypertrophy Referred to Imam Khomeini Hospital of Ahvaz from 2019 to 2020

    Article • Jundishapur Journal of Chronic Disease Care, May 2021, Kowsar Medical Institute

    Prof. Nader saki

  10. Cochlear implant failure following COVID 19: Report of two cases

    Article • American Journal of Otolaryngology, May 2021, Elsevier

    Prof. Nader saki

  11. The priority of audiological procedures during the COVID-19 pandemic

    Article • Medical Journal of the Islamic Republic of Iran, April 2021, Academic World Research

    Prof. Nader saki

  12. SARS-CoV-2 antibody seroprevalence in the general population and high-risk occupational groups across 18 cities in Iran: a population-based cross-sectional study

    Article • The Lancet Infectious Diseases, April 2021, Elsevier

    Prof. Nader saki

  13. Identification of a Novel Frameshift Mutation in the TECTA Gene in an Iranian Family With Autosomal Nonsyndromic Hearing Loss

    Article • ACTA MEDICA IRANICA, March 2021, Knowledge E

    Prof. Nader saki

  14. Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight

    Article • eLife, March 2021, eLife

    DR Bontha Veerraju Babu, Prof Suhad M Bahijri, Professor Yousef Khader, Dr Shariful Islam, Professor Erkin Mirrakhimov, Rajaa Al-Raddadi, Prof. Nader saki

  15. Post-lingual deaf adult cochlear implant users' speech and voice characteristics: cochlear implant turned-on versus turned-off

    Article • Acta Oto-Laryngologica, January 2021, Taylor & Francis

    Prof. Nader saki

  16. Parent’s Satisfaction of Universal Newborn Hearing Screening Program in Iran

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, January 2021, Springer Science + Business Media

    Prof. Nader saki

  17. The effect of combined education on the knowledge and care and supportive performance of parents with children with cleft lip and palate: A clinical trial study

    Article • Global Pediatric Health, January 2021, SAGE Publications

    Prof. Nader saki

  18. Relationship between age at cochlear implantation and auditory speech perception development skills in children

    Article • Clinical Epidemiology and Global Health, December 2020, Elsevier

    Prof. Nader saki

  19. Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: a pooled analysis of 2181 population-based studies with 65 million participants

    Article • The Lancet, November 2020, Elsevier

    Prof Suhad M Bahijri, DR Bontha Veerraju Babu, Professor Yousef Khader, Dr Shariful Islam, Professor Erkin Mirrakhimov, Rajaa Al-Raddadi, Prof. Nader saki

  20. Decomposing socioeconomic inequality in dental caries in Iran: cross-sectional results from the PERSIAN cohort study

    Article • Archives of Public Health, August 2020, Springer Science + Business Media

    Prof. Nader saki

  21. Repositioning of the global epicentre of non-optimal cholesterol

    Article • Nature, June 2020, Springer Science + Business Media

    Dr. Anwar Mahmoud Batieha, Professor Yousef Khader, Professor Erkin Mirrakhimov, Prof. Nader saki

  22. Role of HRCT imaging in predicting the visibility of Round window (RW) on patients underwent cochlear implant surgery

    Article • Clinical Epidemiology and Global Health, June 2020, Elsevier

    Prof. Nader saki

  23. The influence of cochlear implantation on aggression behaviors in children

    Article • International Journal of Pediatric Otorhinolaryngology, December 2019, Elsevier

    Prof. Nader saki

  24. Exercise-Based VRT Shows Benefits in Balance and Postural Stability in Adult Patients with Unilateral Vestibular Hypofunction

    Article • Journal of Intellectual Disability - Diagnosis and Treatment, August 2019, Lifescience Global

    Lifescience Global Inc., Prof. Nader saki

  25. Early Diagnosis of Hearing Loss in Patients Under Methadone Maintenance Treatment

    Article • Frontiers in Neurology, July 2019, Frontiers

    Prof. Nader saki

  26. A novel pathogenic variant in the MARVELD2 gene causes autosomal recessive non-syndromic hearing loss in an Iranian family

    Article • Genomics, July 2019, Elsevier

    Prof. Nader saki

  27. Analysis of the effects of pharyngeal flap surgery on reducing hypernasality in patients with velopharyngeal insufficiency

    Article • Electronic Journal of General Medicine, April 2019, Modestum Limited

    Prof. Nader saki

  28. Pattern of sensitivity to respiratory allergens in patients with sinonasal polyposis

    Article • Electronic Journal of General Medicine, April 2019, Modestum Limited

    Prof. Nader saki

  29. Evaluation of cytomegalovirus DNA in periymphatic fluid in patients with sensorineural hearing loss using PCR technique

    Article • Electronic Journal of General Medicine, April 2019, Modestum Limited

    Prof. Nader saki

  30. Costen’s syndrome and COPD

    Article • International Journal of Chronic Obstructive Pulmonary Disease, February 2019, Dove Medical Press

    Dr bruno bordoni, Dr Fakher Rahim, Prof. Nader saki

  31. Transcranial Direct Current Stimulation for Treatment of Auditory Hallucination: A Systematic Review of Clinical Efficacy

    Article • Current Psychiatry Reviews, January 2019, Bentham Science Publishers

    Prof. Nader saki, Arash Bayat

  32. A National Iranian Cochlear Implant Registry (ICIR): cochlear implanted recipient observational study

    Article • The International Tinnitus Journal, January 2019, GN1 Genesis Network

    Prof. Nader saki

  33. Identification and Clinical Implications of a Novel MYO15A Variant in a Consanguineous Iranian Family by Targeted Exome Sequencing

    Article • Audiology and Neurotology, January 2019, Karger Publishers

    Prof. Nader saki

  34. Ossicular chain defects in adults with chronic otitis media

    Article • The International Tinnitus Journal, January 2019, GN1 Genesis Network

    Prof. Nader saki

  35. Perceptual organization of sequential stimuli in cochlear implant listeners: A temporal processing approach

    Article • The International Tinnitus Journal, January 2019, GN1 Genesis Network

    Prof. Nader saki

  36. Short-term hearing results in adults after stapedotomy

    Article • Family Medicine & Primary Care Review, January 2019, Termedia Sp. z.o.o.

    Prof. Nader saki

  37. The relative frequency of primary immunodeficiency diseases in pediatric patients with recurrent sinusitis and otitis media

    Article • Electronic Journal of General Medicine, December 2018, Modestum Limited

    Prof. Nader saki

  38. COPD and hearing loss

    Article • International Journal of Chronic Obstructive Pulmonary Disease, December 2018, Dove Medical Press

    Dr Fakher Rahim, Prof. Nader saki, Hossein Soleimani, Arash Bayat, Hanieh Raji

  39. Cortical auditory plasticity in children with Cochlear implants

    Article • Electronic Journal of General Medicine, November 2018, Modestum Limited

    Prof. Nader saki

  40. A chronic protocol of bilateral transcranial direct current stimulation over auditory cortex for tinnitus treatment: Dataset from a double-blinded randomized controlled trial

    Article • F1000Research, June 2018, Faculty of 1000, Ltd.

    Prof Ali Yadollahpour, Prof. Nader saki, Arash Bayat, Miguel Mayo-Yáñez

  41. Repeated sessions of bilateral transcranial direct current stimulation on intractable tinnitus: a study protocol for a double-blind randomized controlled trial

    Article • F1000Research, March 2018, Faculty of 1000, Ltd.

    Prof Ali Yadollahpour, Prof. Nader saki, Arash Bayat, Miguel Mayo-Yáñez

  42. A Novel Pathologic Variant in OTOF in an Iranian Family Segregating Hereditary Hearing Loss

    Article • Otolaryngology, February 2018, SAGE Publications

    Prof. Nader saki

  43. Is Chronic Obstructive Pulmonary Disease Associated with Alterations in Hearing? A Systematic Review and Meta-Analysis

    Article • SSRN Electronic Journal, January 2018, Elsevier

    Dr Fakher Rahim, Prof. Nader saki

  44. Factors Affecting Age of Diagnosis and Rehabilitation Intervention in Children Receiving Cochlear Implant

    Article • The International Tinnitus Journal, January 2018, GN1 Genesis Network

    Prof. Nader saki

  45. Frequency of GJB2 mutations in families with autosomal recessive non-syndromic hearing loss in Khuzestan province

    Article • Genetika, January 2018, National Library of Serbia

    Prof. Nader saki

  46. The investigation of the incidence rate of bradycardia caused by nasopharynx irritation and its related factors in adenoidectomy surgery

    Article • Family Medicine & Primary Care Review, January 2018, Termedia Sp. z.o.o.

    Prof. Nader saki

  47. Dataset of acute repeated sessions of bifrontal transcranial direct current stimulation for treatment of intractable tinnitus: A randomized controlled trial

    Article • Data in Brief, December 2017, Elsevier

    Prof. Nader saki

  48. Prospective Epidemiological Research Studies in Iran (the PERSIAN Cohort Study): Rationale, Objectives, and Design

    Article • American Journal of Epidemiology, November 2017, Oxford University Press (OUP)

    Prof. Nader saki

  49. Universal newborn hearing screening in southwestern Iran

    Article • International Journal of Pediatric Otorhinolaryngology, June 2017, Elsevier

    Prof. Nader saki

  50. Effect of conductive hearing loss on central auditory function

    Article • Brazilian Journal of Otorhinolaryngology, March 2017, Elsevier

    Dr Fakher Rahim, Prof. Nader saki

  51. CREATING THE FIRST REGISTRY FRAMEWORK FOR COCHLEAR IMPLANTED PATIENTS IN IRAN: A PRELIMINARY REPORT

    Article • Acta healthmedica, February 2017, Mehr Publishing Group

    Prof. Nader saki

  52. Investigating the Therapeutic Efficacy of Neurofeedback Treatment on the Severity of Symptoms and Quality of Life in Patients with Tinnitus

    Article • International Journal of Mental Health and Addiction, June 2016, Springer Science + Business Media

    Prof Ali Yadollahpour, Prof. Nader saki

  53. Investigating the Impacts of Cochlear Implantation on the Happiness and Self-Esteem of Mothers of Children with Severe Hearing Loss

    Article • International Journal of Mental Health and Addiction, June 2016, Springer Science + Business Media

    Prof Ali Yadollahpour, Prof. Nader saki

  54. Investigating Gender Differences on the Age of Suspicion of Children with Hearing Loss in Iran

    Article • International Journal of Mental Health and Addiction, May 2016, Springer Science + Business Media

    Prof Ali Yadollahpour, Prof. Nader saki

  55. Investigating the Relation between Depression and Social Support in Deaf Patients of Special Schools in Ahvaz during 2014-2015

    Article • Biomedical & Pharmacology Journal, December 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  56. Outcomes of Reconstructive Surgery for Cleft Palate Patients: A survey on patients Admitted to Imam Khomeini and Apadana Hospitals during 2004-2010

    Article • Biomedical & Pharmacology Journal, December 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  57. Surgical Approach Decision-Making Based on the CT-Guided Retrosternal Goiter Grading

    Article • Biosciences Biotechnology Research Asia, December 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  58. An Introduction to Thesis Preparing Algorithm Using MS Word 2013

    Article • Biosciences Biotechnology Research Asia, December 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  59. Postauricular Advancement Flap for Closure of Persistent Mastoid Cutaneous Fistula

    Article • Biomedical & Pharmacology Journal, October 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  60. Histopathological Variants of Chronic Polypoid Rhinosinusitis and Clinical Outcomes

    Article • Biomedical & Pharmacology Journal, October 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  61. Evaluating the Effect of Intravenous Tranexamic Acid on Intraoperative Bleeding During Elective Rhinoplasty Surgery

    Article • Biomedical & Pharmacology Journal, October 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  62. Comparison the Efficacy of Intratympanic Injections of Methylprednisolone and Gentamicin to Control Vertigo in Unilateral Meniere’s Disease

    Article • Biomedical & Pharmacology Journal, October 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  63. The Outcome of Endoscopic Surgery on Patients with Sinonasal Inverted Papilloma: A 10 Year Experience

    Article • Biomedical & Pharmacology Journal, October 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  64. Investigating the Role of Respiratory Syncytial Virus and Influenza virus in Patients with Otitis Media with Effusion

    Article • Biomedical & Pharmacology Journal, October 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  65. Correlation Between Tympanosclerosis and Helicobacter pylori

    Article • Jundishapur Journal of Microbiology, October 2015, Kowsar Medical Institute

    Prof. Nader saki

  66. The Outcome of Endoscopic Surgery on Patients With Sinonasal Inverted Papilloma

    Article • Jentashapir Journal of Health Research, August 2015, Kowsar Medical Institute

    Prof. Nader saki

  67. Effect of Topical Bupivacaine on Post-Tonsillectomy Pain Relief in Children Referred to Ahvaz Imam Khomeini Hospital in 2013

    Article • Jundishapur Journal of Natural Pharmaceutical Products, May 2015, Kowsar Medical Institute

    Prof. Nader saki

  68. Evaluation of Loudness Perception Performance in Cochlear Implant Users

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  69. Analysis of Timing of Post-adenotonsillectomy Bleeding in Imam Khomeini and Apadana Hospitals (Khuzestan, Iran)

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  70. Pattern of Distribution in Facial Nerve in the Benign Parotid Gland Tumors

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  71. Distribution of Audiometric Findings in Patients with Presbycusis

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  72. Frontal Mucocele Presenting As a Subcutaneous Giant Mass

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  73. Fifteen Years Experiences in Tumors of Parotid Glands and the Analysis of 204 Cases

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  74. The Effect of the Oral Itraconazole on the Management of Allergic Fungal Sinusitis

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  75. Evaluation of Prognostic Factors in Tympanoplasty

    Article • Biosciences Biotechnology Research Asia, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  76. The Quality of Life of Patients After Total Laryngectomy

    Article • Biosciences Biotechnology Research Asia, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  77. The Diagnostic Value of the P53 Tumor Marker as a Prognostic Factor in Patients with Squamous Cell Carcinoma of the Larynx

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  78. A Review of Hearing Disorders Prevalence and Risk Factors Among Elementary School Students in Ahvaz

    Article • Biosciences Biotechnology Research Asia, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  79. Frequency of Malignant External Otitis in Patients Admitted to the Otolaryngology Ward of Imam Khomeini Hospital, Ahwaz, Iran, 2002-2010

    Article • Biomedical & Pharmacology Journal, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  80. Comparison of Ultrasonography and Conventional Radiography in the Diagnosis of New Nasal Bone Fractures in Adults

    Article • Biosciences Biotechnology Research Asia, March 2015, Oriental Scientific Publishing Company

    Prof. Nader saki

  81. Identification of Alloiococcus otitidis, Streptococcus pneumoniae, Moraxella catarrhalis and Haemophilus influenzae in Children With Otitis Media With Effusion

    Article • Jundishapur Journal of Microbiology, March 2015, Kowsar Medical Institute

    Prof. Nader saki

  82. Prevalence of Rhinovirus and Respiratory Syncytial Virus Among Patients With Chronic Rhinosinusitis

    Article • Jundishapur Journal of Microbiology, March 2015, Kowsar Medical Institute

    Prof. Nader saki

  83. Determining the Role of Helicobacter pylori in Chronic Sinus Infections Using the Polymerase Chain Reaction

    Article • Jundishapur Journal of Microbiology, March 2015, Kowsar Medical Institute

    Prof. Nader saki

  84. Correlation of KI-67/MIB-1 in the Papillary Macro and Micro-carcinomas of the Thyroid Gland with the Prognosis of the Patients

    Article • Asian Journal of Cell Biology, January 2015, Science Alert

    Prof. Nader saki, Dr Fakher Rahim

  85. Anatomical Variations of Carotid Artery and Optic Nerve in Sphenoid Sinus Using Computerized Tomographic Imaging

    Article • Jentashapir Journal of Health Research, December 2014, Kowsar Medical Institute

    Dr Fakher Rahim, Prof. Nader saki

  86. 25-Year Review of the Abundance and Diversity of Radiopaque Airway Foreign Bodies in Children

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, December 2014, Springer Science + Business Media

    Prof. Nader saki

  87. Voice-Related Disability of Iranian Patients With Temporomandibular Disorders

    Article • Journal of Voice, November 2014, Elsevier

    Prof. Nader saki

  88. Cross-Cultural Adaptation and Validation of the Voice-Related Quality of Life Into Persian

    Article • Journal of Voice, November 2014, Elsevier

    Prof. Nader saki

  89. Determination of the Effect of Nasal Septoplasty on Pulmonary Artery Pressure in Patients with Deviated Nasal Septum

    Article • Jentashapir Journal of Health Research, July 2014, Kowsar Medical Institute

    Prof. Nader saki

  90. The Prevalence Rate of Helicobacter pylori Infection in, Chronic Otitis Media With Effusion patients

    Article • Jundishapur Journal of Microbiology, March 2014, Kowsar Medical Institute

    Prof. Nader saki

  91. Multiple Congenital Epulis in Alveolar Ridges of Maxilla and Mandible in a Newborn: A Rare Case Report

    Article • Case Reports in Otolaryngology, January 2014, Hindawi Publishing Corporation

    Prof. Nader saki

  92. Voice Related Quality of Life--Persian Version

    Article • January 2014, American Psychological Association (APA)

    Prof. Nader saki

  93. Prevalence of otomycosis in Khouzestan Province, south-west Iran

    Article • The Journal of Laryngology & Otology, November 2012, Cambridge University Press

    Prof. Nader saki

  94. Vestibular Rehabilitation Outcomes in the Elderly with Chronic Vestibular Dysfunction

    Article • Iranian Red Crescent Medical Journal, November 2012, Kowsar Medical Institute

    Prof. Nader saki

  95. Complications of Neck Dissection

    Article • February 2012, IntechOpen

    Prof. Nader saki

  96. Quality of Life in Children with Recurrent Acute Otitis Media in Southwestern of Iran

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, January 2012, Springer Science + Business Media

    Dr Fakher Rahim, Prof. Nader saki

  97. Herbal treatment of allergic rhinitis: the use of Nigella sativa

    Article • American Journal of Otolaryngology, September 2011, Elsevier

    Dr Fakher Rahim, Prof. Nader saki

  98. The Effect of Adenotonsillectomy on Quality of Life in Adults and Pediatric Patients

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, April 2011, Springer Science + Business Media

    Dr Fakher Rahim, Prof. Nader saki

  99. Craniofacial variables in subjects with and without habitual snoring: A cephalometric comparison

    Article • Indian Journal of Otolaryngology and Head & Neck Surgery, September 2010, Springer Science + Business Media

    Dr Fakher Rahim, Prof. Nader saki

  100. The Association Between Epstein-Barr Virus with Nasopharyngeal Carcinoma in Patients from Southwestern Region of Iran

    Article • International Journal of Cancer Research, March 2010, Science Alert

    Dr Fakher Rahim, Prof. Nader saki

  101. Deep Neck Infections: A Case Study of 12-Year

    Article • Asian Journal of Biological Sciences, March 2010, Science Alert

    Prof. Nader saki

  102. Pathologic Fractures: A Neglected Clinical Feature of Parathyroid Adenoma

    Article • Case Reports in Medicine, January 2010, Hindawi Publishing Corporation

    Prof. Nader saki

  103. The Effect of Adenotonsillectomy on Quality of Life in Adults and Pediatric Patients

    Article • Research Journal of Biological Sciences, December 2009, Science Alert

    Dr Fakher Rahim, Prof. Nader saki

  104. Meta Analysis of the Leech as a Live Foreign Body: Detection, Precaution and Treatment

    Article • Pakistan Journal of Biological Sciences, December 2009, Science Alert

    Prof. Nader saki, Dr Fakher Rahim

  105. Anatomical Variations of Neurovascular Structures Adjacent Sphenoid Sinus by using CT Scan

    Article • Pakistan Journal of Biological Sciences, June 2009, Science Alert

    Prof. Nader saki, Dr Fakher Rahim

  106. Anatomical Variation of Branchial Clefts: A Retrospective Study

    Article • Journal of Medical Sciences(Faisalabad), February 2009, Science Alert

    Prof. Nader saki, Dr Fakher Rahim

  107. Foreign body aspirations in Infancy: a 20-year experience

    Article • International Journal of Medical Sciences, January 2009, Ivyspring International Publisher

    Dr Fakher Rahim, Prof. Nader saki

  108. Chondrosarcoma of the Hyoid Bone: Imaging, Surgical, and Histopathologic Correlation

    Article • The Laryngoscope, July 2008, Wiley

    Prof. Nader saki