Neurology Commons^™

Altered Domain Functional Network Connectivity Strength And Randomness In Schizophrenia., Victor M Vergara, Eswar Damaraju, Jessica A Turner, Godfrey Pearlson, Aysenil Belger, Daniel H Mathalon, Steven G Potkin, Adrian Preda, Jatin G Vaidya, Theo G M Van Erp, Sarah C Mcewen, Vince D Calhoun

Articles, Abstracts, and Reports

Functional connectivity is one of the most widely used tools for investigating brain changes due to schizophrenia. Previous studies have identified abnormal functional connectivity in schizophrenia patients at the resting state brain network level. This study tests the existence of functional connectivity effects at whole brain and domain levels. Domain level refers to the integration of data from several brain networks grouped by their functional relationship. Data integration provides more consistent and accurate information compared to an individual brain network. This work considers two domain level measures: functional connectivity strength and randomness. The first measure is simply an average of …

Differential Expression Of Genes Related To Innate Immune Responses In Ex Vivo Spinal Cord And Cerebellar Slice Cultures Infected With West Nile Virus, Amber M. Paul, Parminder J.S. Vig, Deyin Lu, Ram Kuwar, Maria Lopez, Dobrivoje S. Stokic, A. Arturo Leis, Michael R. Garrett, Fengwei Bai

Publications

West Nile virus (WNV) infection results in a spectrum of neurological symptoms, ranging from a benign fever to severe WNV neuroinvasive disease with high mortality. Many who recover from WNV neuroinvasive infection present with long-term deficits, including weakness, fatigue, and cognitive problems. While neurons are a main target of WNV, other cell types, especially astrocytes, play an important role in promoting WNV-mediated central nervous system (CNS) damage. Conversely, it has been shown that cultured primary astrocytes secrete high levels of interferons (IFNs) immediately after WNV exposure to protect neighboring astrocytes, as well as neurons. However, how intrinsic responses to WNV …

The Current Understanding Of Microrna's Therapeutic, Diagnostic, And Prognostic Role In Chordomas: A Review Of The Literature., Paul J Choi, Rod J Oskouian, R Shane Tubbs

Articles, Abstracts, and Reports

Chordomas are primary low-grade bone tumors derived from the embryonic notochord that make up less than 5% of all osseous malignancies and commonly affect the spine at its vertebral body and at its two ends i.e., skull base and the sacrum. Although histologically defined to be low-grade, chordoma is locally destructive, metastatic, and has a serious recurrence rate, which all contribute to the dismal median survival rate of six years. Its locally destructive nature places the adjacent vital neurovascular structures at risk, making an en-bloc resection a challenge. This tumor is also known to show high resistance to currently available …

Making Prescriptions “Talk” To Stroke And Heart Attack Survivors To Improve Adherence: Results Of A Randomized Clinical Trial (The Talking Rx Study), Ayeesha Kamran Kamal, Wardah Khalid, Abdul Muqeet,, Anum Jamil,, Kashfa Farhat, Sehar Rahim Ali Gillani, Maryam Zulfiqar, Mehreen Saif, Aliya Amin Muhammad, Fabiha Zaidi, Saleem Sayani, Salim S. Virani

Section of Neurology

Background: We developed and tested the effectiveness of a tailored health information technology driven intervention: "TalkingPrescriptions" (Talking Rx) to improve medication adherence in a resource challenged environment.
Methods: We conducted a parallel, randomized, controlled, assessor-blinded trial at the Aga Khan University (AKU), Karachi, Pakistan. Adults with diagnosis of cerebrovascular accident (CVA) or coronary artery disease (CAD) diagnosed least one month before enrollment, on anti-platelets and statins, with access to a mobile phone were enrolled. The intervention group received a) Daily Interactive Voice Response (IVR) call services regarding specific statin and antiplatelet b) Daily tailored medication reminders for statin and antiplatelet …

Rheumatoid Meningitis Sine Arthritis., Cathy Lee-Ching, Lawrence C. Kenyon, Matthew Berk, Chantel Park

Department of Medicine Faculty Papers

Rheumatoid meningitis is a rare and very serious extra-articular manifestation of rheumatoid arthritis. We present a case of a 7()year-old female with no history of arthritis who developed stroke-like symptoms, seizures, psychosis and compulsive behavior. Serial brain magnetic resonance images (MRI) over four months demonstrated progressive interhemispheric meningeal thickening. She had mild lymphocytic pleocytosis on the cerebrospinal fluid analysis and serum anti-cyclic citrullinated peptide antibodies resulted positive in high titers. She underwent a brain biopsy showing necrotizing granulomas consistent with rheumatoid meningitis. Her symptoms resolved with treatment with glucocorticoids and cyclophosphamide. She has not been diagnosed with rheumatoid arthritis even …

It's Getting Hot In Here: A Rare Case Of Heat Stroke In A Young Male., Oriana Ramirez, Yury Malyshev, Sonu Sahni

Touro College of Osteopathic Medicine (New York) Publications and Research

Heat stroke is a severe acute illness characterized by a core temperature greater than 40°C (104°F) and central nervous system manifestations, such as delirium, convulsions, or coma, resulting from exposure to environmental heat or strenuous physical activity. Early recognition and treatment including aggressive cooling and management of life-threatening systemic complications, such as cardiac arrest, rhabdomyolysis and acute renal failure, are essential to reduce morbidity and mortality. Herein we describe a case of heat stroke in a 23-year-old male who suffered cardiac arrest in which prompt initiation of cooling measures prevented permanent neurological sequelae, provided swift neurological recovery and resolution of …

Genome-Wide Mega-Analysis Identifies 16 Loci And Highlights Diverse Biological Mechanisms In The Common Epilepsies., Bassel Abou-Khalil, Pauls Auce, Andreja Avbersek, Melanie Bahlo, David J. Balding, Thomas Bast, Larry Baum, Albert J. Becker, Felicitas Becker, Bianca Berghuis, Samuel F. Berkovic, Katja E. Boysen, Jonathan P. Bradfield, Lawrence C. Brody, Russell J. Buono, Ellen Campbell, Gregory D. Cascino, Claudia B. Catarino, Gianpiero L. Cavalleri, Stacey S. Cherny, Krishna Chinthapalli, Alison J. Coffey, Alastair Compston, Antonietta Coppola, Patrick Cossette, John J. Craig, Gerrit-Jan De Haan, Peter De Jonghe, Carolien G.F. De Kovel, Norman Delanty, Chantal Depondt, Orrin Devinsky, Dennis J. Dlugos, Colin P. Doherty, Christian E. Elger, Johan G. Eriksson, Thomas N. Ferraro, Martha Feuch, Ben Francis, Andre Franke, Jacqueline A. French, Saskia Freytag, Verena Gaus, Eric B. Geller, Christian Gieger, Tracy Glauser, Simon Glynn, David B. Goldstein, Hongsheng Gui, Youling Guo, Kevin F. Haas, Hakon Hakonarson, Kerstin Hallmann, Sheryl Haut, Erin L. Heinzen, Ingo Helbig, Christian Hengsbach, Helle Hjalgrim, Michele Iacomino, Andrés Ingason, Jennifer Jamnadas-Khoda, Michael R. Johnson, Reetta Kälviäinen, Anne-Mari Kantanen, Dalia Kasperavičiūte, Dorothee Kasteleijn-Nolst Trenite, Heidi E. Kirsch, Robert C. Knowlton, Bobby P.C. Koeleman, Roland Krause, Martin Krenn, Wolfram S. Kunz, Ruben Kuzniecky, Patrick Kwan, Dennis Lal, Yu-Lung Lau, Anna-Elina Lehesjoki, Holger Lerche, Costin Leu, Wolfgang Lieb, Dick Lindhout, Warren D. Lo, Iscia Lopes-Cendes, Daniel H. Lowenstein, Alberto Malovini, Anthony G. Marson, Thomas Mayer, Mark Mccormack, James L. Mills, Nasir Mirza, Martina Moerzinger, Rikke S. Møller, Anne M. Molloy, Hiltrud Muhle, Mark Newton, Ping-Wing Ng, Markus M. Nöthen, Peter Nürnberg, Terence J. O’Brien, Karen L. Oliver, Palotie Palotie, Faith Pangilinan, Sarah Peter, Slavé Petrovski, Annapurna Poduri, Michael Privitera, Rodney Radtke, Sarah Rau, Philipp S. Reif, Eva M. Reinthaler, Felix Rosenow, Josemir W. Sander, Thomas Sander, Theresa Scattergood, Steven C. Schachter, Christoph J. Schankin, Ingrid E. Scheffer, Bettina Schmitz, Susanne Schoch, Pak C. Sham, Jerry J. Shih, Graeme J. Sills, Sanjay M. Sisodiya, Lisa Slattery, Alexander Smith, David F. Smith, Michael C. Smith, Philip E. Smith, Anja C.M. Sonsma, Doug Speed, Michael R. Sperling, Bernhard J. Steinhoff, Ulrich Stephani, Remi Stevelink, Konstantin Strauch, Pasquale Striano, Hans Stroink, Rainer Surges, K. Meng Tan, Liu Lin Thio, G. Neil Thomas, Marian Todaro, Rossana Tozzi, Maria S. Vari, Ellen P.G. Vining, Frank Visscher, Sarah Von Spiczak, Nicole M. Walley, Yvonne G. Weber, Zhi Wei, Judith Weisenberg, Christopher D. Whelan, Peter Widdess-Walsh, Markus Wolff, Wolking Wolking, Wanling Yang, Federico Zara, Fritz Zimprich

Department of Neurology Faculty Papers

The epilepsies affect around 65 million people worldwide and have a substantial missing heritability component. We report a genome-wide mega-analysis involving 15,212 individuals with epilepsy and 29,677 controls, which reveals 16 genome-wide significant loci, of which 11 are novel. Using various prioritization criteria, we pinpoint the 21 most likely epilepsy genes at these loci, with the majority in genetic generalized epilepsies. These genes have diverse biological functions, including coding for ion-channel subunits, transcription factors and a vitamin-B6 metabolism enzyme. Converging evidence shows that the common variants associated with epilepsy play a role in epigenetic regulation of gene expression in the …

Frontoethmoidal Encephalocele Presenting In Concert With Schizencephaly, Asra Tanwir, Syed Sarmad Bukhari, Muhammad Shahzad Shamim

Section of Neurosurgery

Background: Schizencephaly is a rare defect which is identified as clefts that are lined with grey matter extending from the ependyma of the cerebral ventricles to the pia mater. An encephalocele occurs due to failure of neural tube closure resulting in a gap through which cerebrospinal fluid and meninges can bulge into a pouch. There have been rare instances when these two defects have presented simultaneously.
Case description: We report a case of a 17-year-old child who was brought by his parents with complaint of swelling over his nose and forehead and aggressive behavior since birth. Magnetic resonance imaging findings …

Preservation Of Hearing And Facial Nerve Function With The Microsurgical Excision Of Large Vestibular Schwannomas: Experience With The Retrosigmoid Approach, Muhammad Shaheryar Ahmed Rajput, Ahmad Nawaz Ahmad, Asif Ali Arain, Muhammad Adeel, Syed Akram, Mohammad Sohail Awan, Muhammad Ehsan Bari

Section of Neurosurgery

Introduction: Vestibular schwannomas (VS) are the most common benign neoplasms of a cerebellopontine angle (CPA), which arise from the Schwann cells of the vestibulocochlear nerve. Eighty percent of CPA tumors are VS followed by meningioma as the second common mass lesion in this critical potential space. Treatment options range from watchful waiting with serial imaging studies to radiosurgery or a microsurgical excision or a combination of surgery and radiation therapy. The primary objective of the study was to assess hearing and facial nerve status before and after the surgery via the retrosigmoid approach.
Methods: The database of Aga Khan University …

Levels Of Par-1 Kinase Determine The Localization Of Bruchpilot At The Drosophila Neuromuscular Junction Synapses., Kara R. Barber, Martin Hruska, Keegan M. Bush, Jade A. Martinez, Hong Fei, Irwin B. Levitan, Matthew B. Dalva, Yogesh P. Wairkar

Farber Institute for Neuroscience Faculty Papers

Functional synaptic networks are compromised in many neurodevelopmental and neurodegenerative diseases. While the mechanisms of axonal transport and localization of synaptic vesicles and mitochondria are relatively well studied, little is known about the mechanisms that regulate the localization of proteins that localize to active zones. Recent finding suggests that mechanisms involved in transporting proteins destined to active zones are distinct from those that transport synaptic vesicles or mitochondria. Here we report that localization of BRP-an essential active zone scaffolding protein in Drosophila, depends on the precise balance of neuronal Par-1 kinase. Disruption of Par-1 levels leads to excess accumulation of …

Role Of Stereotactic Radiosurgery In The Treatment Of Acromegaly, Komal Naeem, Aneela Darbar, Muhammad Shahzad Shamim

Section of Neurosurgery

Acromegaly is a rare, indolent disease due to overproduction of growth hormone. Surgery is identified as primary treatment, but has its limitation, thus frequently requiring alternate treatment options as adjunct to surgery. Stereotactic radiosurgery (SRS) has been used as adjuvant and alternate therapy in patients with inoperable or residual disease; or those not fit for surgery. It has shown reasonable results for treating macroadenoma and tumours invading cavernous sinuses with significant reduction in tumour size and durable endocrinological remission. Factors favouring better outcomes include time from last resection to SRS, older age, peri-procedural withdrawal of medication, higher margin and maximum …

Early Identification Of Depression In Patients With Pediatric Epilepsy, Erin Fecske, Paul Glasier, Lines Vargas Collado, Elizabeth Rende

Posters

Describes the use of the Neurological Disorders Depression Inventory-Epilepsy-Youth (NDDI-E-Y) in adolescent patients in a comprehensive epilepsy center to identify patients who need referral for mental health care.

Dementia- Is It High Time To Replace The Term In Neurological Nosology?, Qurat Ul Ain Khan

Pakistan Journal of Neurological Sciences (PJNS)

Dementia is a term used universally by clinicians and researchers for cognitive impairment that affects a person’s ability to function ((1). This is the term used by the American Academy of Neurology (AAN) in their nosology. Diagnostic and Statistical Manual of Mental Disorders V (DSM V) has replaced the term with Major Neurocognitive Disorder (2). The term HIV- associated dementia (HAD) was also replaced by HIV- associated neurocognitive disorder (HAND) by the AAN AIDS Task force

Non Availability Of Antiepileptic Medications, Farida Jan

Pakistan Journal of Neurological Sciences (PJNS)

It was the best of times, it was the worst of times” quoting Charles Dickens, I feel living in an era very similar to those times, with an ever widening gap between the different economical classes in our society. With the relative improvement in Health services across Pakistan may over the last 70 years and the absolute disastrous growth of 2.4% in population within the last decade, there is still a lot of disparity between the health care demand and supply for common man.1

Awareness And Approach To Headache: A Survey Of Family Physicians In Pakistan, Abdul Malik, Safia Awan, Aziz Sonawalla, Fayyaz Ahmed, Mohammad Wasay

Pakistan Journal of Neurological Sciences (PJNS)

Headache is one of the most common complaints in the general population and the most common symptom for a neurology out-patient visit. According to the WHO, the prevalence of adults complaining of recent headache (at least one episode within the last year) is 47%. Despite the large burden of disease, headaches are often overlooked, underdiagnosed and under-resourced. There are several reasons that include lack of awareness among the general public and healthcare professionals and lack of training at both undergraduate and post-graduate level. There is limited data available from many third world countries including Pakistan. Family Physicians (FPs) equivalent to …

Albuminuria In Diabetic Patients With Stroke., Zahid Gul Jadoon, Raheel Jahangir Jadoon, Mir Jalal Ud-Din, Nayab Balqees, Muhammad Munir Noor, Syed Affan Ali

Pakistan Journal of Neurological Sciences (PJNS)

Diabetes is a major health burden worldwide. There is a close association between albuminuria and development of stroke in diabetics. This study was conducted to determine the frequency of albuminuria among diabetic patients presenting with stroke

Awareness Of Stroke Among General Practitioners, Waleed Shahzad, Hafiza Faiza Mushtaq, Tehmina Inayat, Muhammad Hassan, Haris Majid Rajput, Mazhar Badshah

Pakistan Journal of Neurological Sciences (PJNS)

Stroke is the 2nd leading cause of death and 3rd leading cause of disability after cancer and ischemic heart disease. The recognition of acute stroke symptoms and knowledge about timely and prompt referral of a patient for possible thrombolysis is a need of time for which general practitioners (as they have to be the first responders many a times across Pakistan) need to be equipped with the advance knowledge about stroke treatment.

Azygos Anterior Cerebral Artery Causing Bifrontal Infarcts: A Case Report, Abdul Khaliq, Palwasha Gul, Pari Gul

Pakistan Journal of Neurological Sciences (PJNS)

The azygos anterior cerebral artery (AACA) is an uncommon anatomical variant. There is absence of the anterior communicating artery (ACom) and bilateral anterior cerebral arteries (ACA) form a common trunk and travels superiorly in the interhemispheric fissure. It can result in bilateral frontal infarcts in case of thromboembolism. Therefore its correct diagnosis is of grave importance for better patient clinical outcome. Cerebrovascular infarction is a common condition, however simultaneous symmetrical bilateral infarction secondary to arterial occlusion is a rare entity. We report a case of a 50 years male with thromboembolic event in azygos anterior cerebral artery resulting in bifrontal …

Bilateral Carotid Body Tumors: A Case Report And Review, Dr Asma, Pari Gul, Palwasha Gul

Pakistan Journal of Neurological Sciences (PJNS)

Carotid body tumors (CBTS) also known as chemodectomas are a type of paragangliomas which originate from the carotid body. Carotid body tumors present as a palpable mass in anterolateral aspect of the neck causing splaying of the external carotid artery (ECA) and internal carotid artery (ICA). Bilateral carotid body tumors are uncommon with a reported incidence of 5 - 10%. CBTs are commonly seen in 4th to 5th decades with female predilection. We report a case of 16 years old boy with bilateral carotid body tumors.

Association Of Fahr Disease With Rhabdomyolysis And Hypoparathyroidism, Suneel Kumar, Ahsan Ali Gaad, Mohsin Irshad Abbasi, Munir Afzal, Shahnaz Shah, Dileep Kumar

Pakistan Journal of Neurological Sciences (PJNS)

Fahr syndrome is an idiopathic deposition of calcium in the basal ganglia (most commonly in the Globus pallidus) of the brain; other most common sites may include striatum pallidum. It can have a wide variety of presentations like progressive psychosis, dementia, movement disorders, gait disturbances or it can also be asymptomatic. Department of Neuro-medicine Hyderabad admitted this 28 year old male first. And then was referred to us in the department of Neuro-medicine JPMC Karachi. He is a known case of epilepsy for 8 years, who now presented with the complaint of fever, fits, and altered sensorium for 3 days. …

Rapidly Progressive Dementia A Case Of Sporadic Creutzfeldt-Jakob Disease (Scjd), Harwindar Kumar, Mian Ayaz Ul Haq, Saad Ali Saddiqui, Jasvindar Kumar, Amjad Iqbal, Danish Nabi

Pakistan Journal of Neurological Sciences (PJNS)

Sporadic CJD is a rare and fatal spongiform encephalopathy characterized by rapidly progressive dementia and myoclonus. It is a rare cause of dementia with an estimated incidence of the disease in one patient per million per year worldwide, however, no data is available for Pakistan. As it is a rare cause of dementia, so rarely considered in differential diagnosis of rapidly progressive dementia.

Diagnostic Dilemma In Non-Ketotic Hyperglycemic Seizures On Mr Imaging, Javerya Sattar, Ateeq Ahmed Khan

Pakistan Journal of Neurological Sciences (PJNS)

Acute metabolic encephalopathy is potentially a reversible condition and requires an early diagnosis and management to reduce morbidity and mortality, as in under diagnosed patients, permanent damage can result. Diabetic encephalopathy is an emerging complication of both type I and type II diabetes. Besides T1 hperintensities in bilateral basal ganglia in diabetic encephalopathy patients, reported in most of the literature reviewed, patients with hyperglycemic seizures can present with subcortical hyperintensities , with predilection for occipital lobes. Here, we report a case of type II diabetic, 40 year-female patient who was referred for MR brain to our department, presented with acute …

Challenges & Barriers For Neuro Rehabilitation In Developing Countries, Muhammad Naveed Babur, Maria Liaqat

Pakistan Journal of Neurological Sciences (PJNS)

People with disabilities especially neurological disabilities have many unmet health and rehabilitation needs, face barriers in accessing mainstream health-care services, and consequently have poor health. There are not sufficient epidemiological studies from Pakistan which assess barriers to neurorehabilitation and ways to counter it.

Bilateral Sternocleidomastoid Variant With Six Distinct Insertions Along The Superior Nuchal Line., Graham Dupont, Joe Iwanaga, Juan J Altafulla, Stefan Lachkar, Rod J Oskouian, R Shane Tubbs

Articles, Abstracts, and Reports

Anatomical variations of the sternocleidomastoid muscle (SCM) have been observed to occupy multiple origins and insertion points and have supernumerary heads, sometimes varying in thickness. During routine dissection, a SCM was observed to have six distinct insertions that interface with the course of the superior nuchal line, ending at the midline, bilaterally. This variation was also seen to receive innervation from the accessory nerve as well as the great auricular nerve. To our knowledge, this variant of supernumerary insertions and nerve innervations has not yet been reported. These variants may pose as problematic during surgical approaches to the upper neck …

The Ratio Of Observed To Expected: How Much Of It Is Unexpected?, Jens R Chapman, Karsten Wiechert, Jeffrey C Wang

Articles, Abstracts, and Reports

No abstract provided.

Cost-Utility Of Revisions For Cervical Deformity Correction Warrants Minimization Of Reoperations., Samantha R Horn, Peter G Passias, Aaron Hockley, Renaud Lafage, Virginie Lafage, Hamid Hassanzadeh, Jason A Horowitz, Cole A Bortz, Frank A Segreto, Avery E Brown, Justin S Smith, Daniel M Sciubba, Gregory M Mundis, Michael P Kelley, Alan H Daniels, Douglas C Burton, Robert A Hart, Frank J Schwab, Shay Bess, Christopher I Shaffrey, Richard A Hostin, Christopher P Ames

Articles, Abstracts, and Reports

Background: Cervical deformity (CD) surgery has become increasingly more common and complex, which has also led to reoperations for complications such as distal junctional kyphosis (DJK). Cost-utility analysis has yet to be used to analyze CD revision surgery in relation to the cost-utility of primary CD surgeries. The aim of this study was to determine the cost-utility of revision surgery for CD correction.

Methods: Retrospective review of a multicenter prospective CD database. CD was defined as at least one of the following: C2-C7 Cobb >10°, cervical lordosis (CL) >10°, cervical sagittal vertical axis (cSVA) >4 cm, chin-brow vertical angle (CBVA) …

Spinal Infections: From Prevention To Cure, James Harrop

Department of Neurosurgery Faculty Papers

AOSpine North America (AOSNA) is honored to have the ability to present this focused issue on spinal infections. As we are all aware, spinal infections are a prevalent part of our daily treatment regimen as spine surgeons—whether these infections are in our elective practice or emergencies.

Medial Temporal Lobe Functional Connectivity Predicts Stimulation-Induced Theta Power., E. A. Solomon, J. E. Kragel, R. Gross, B. Lega, M. R. Sperling, G. Worrell, S. A. Sheth, K. A. Zaghloul, B. C. Jobst, J. M. Stein, S. Das, R. Gorniak, C. S. Inman, S. Seger, D. S. Rizzuto, M. J. Kahana

Department of Neurology Faculty Papers

Focal electrical stimulation of the brain incites a cascade of neural activity that propagates from the stimulated region to both nearby and remote areas, offering the potential to control the activity of brain networks. Understanding how exogenous electrical signals perturb such networks in humans is key to its clinical translation. To investigate this, we applied electrical stimulation to subregions of the medial temporal lobe in 26 neurosurgical patients fitted with indwelling electrodes. Networks of low-frequency (5-13 Hz) spectral coherence predicted stimulation-evoked increases in theta (5-8 Hz) power, particularly when stimulation was applied in or adjacent to white matter. Stimulation tended …

The Sin Of Missing Data: Is All Forgiven By Way Of Imputation?, Joseph R Dettori, Daniel C Norvell, Jens R Chapman

Articles, Abstracts, and Reports

No abstract provided.

Triggers, Protectors, And Predictors In Episodic Migraine., Michael J. Marmura

Department of Neurology Faculty Papers

PURPOSE OF REVIEW: A wide variety of triggers prompt attacks in episodic migraine. Although experimental triggers such as glyceryl trinitrate reliably produce migraine, natural triggers are much less predictable and vary in importance between individuals. This review describes the most common triggers in episodic migraine and provides strategies for managing them in clinical practice.

RECENT FINDINGS: Multiple migraine attack triggers have been established based on patient surveys, diary studies, and clinical trials. Stress, menstrual cycle changes, weather changes, sleep disturbances, alcohol, and other foods are among the most common factors mentioned. Clinical studies have verified that fasting, premenstrual periods in …