41,270 results match your criteria Scalp Anatomy


Microbiota profiling on itchy scalp with undetermined origin.

Arch Microbiol 2022 Jul 1;204(7):446. Epub 2022 Jul 1.

State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.

Scalp pruritus is a common skin problem that remains therapeutic challenge. The relationships between the dysbiosis of microbiota and skin diseases have caught attention recently. However, there are few reports about microbiota on itchy scalp. Read More

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Multimodal neuroimaging with optically pumped magnetometers: A simultaneous MEG-EEG-fNIRS acquisition system.

Neuroimage 2022 Jun 28:119420. Epub 2022 Jun 28.

Beijing City Key Lab for Medical Physics and Engineering, Institution of Heavy Ion Physics, School of Physics, Peking University, Beijing, China; Changping Laboratory, Beijing, China; National Biomedical Imaging Center, Peking University, Beijing, China; McGovern Institute for Brain Research, Peking University, Beijing, China; Center for MRI Research, Academy for Advance Interdisciplinary Studies, Peking University, Beijing, China. Electronic address:

Multimodal neuroimaging plays an important role in neuroscience research. Integrated noninvasive neuroimaging modalities, such as magnetoencephalography (MEG), electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS), allow neural activity and related physiological processes in the brain to be precisely and comprehensively depicted, providing an effective and advanced platform to study brain function. Noncryogenic optically pumped magnetometer (OPM) MEG has high signal power due to its on-scalp sensor layout and enables more flexible configurations than traditional commercial superconducting MEG. Read More

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Hedgehog signaling reprograms hair follicle niche fibroblasts to a hyper-activated state.

Dev Cell 2022 Jun 27. Epub 2022 Jun 27.

Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA 92697, USA; Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA. Electronic address:

Hair follicle stem cells are regulated by dermal papilla fibroblasts, their principal signaling niche. Overactivation of Hedgehog signaling in the niche dramatically accelerates hair growth and induces follicle multiplication in mice. On single-cell RNA sequencing, dermal papilla fibroblasts increase heterogeneity to include new Wnt5a states. Read More

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Radiomics Features on Computed Tomography Combined With Clinical-Radiological Factors Predicting Progressive Hemorrhage of Cerebral Contusion.

Front Neurol 2022 14;13:839784. Epub 2022 Jun 14.

Department of Radiology, Chongqing University Central Hospital, Chongqing, China.

Background: Traumatic brain injury (TBI) is the main cause of death and severe disability in young adults worldwide. Progressive hemorrhage (PH) worsens the disease and can cause a poor neurological prognosis. Radiomics analysis has been used for hematoma expansion of hypertensive intracerebral hemorrhage. Read More

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Presurgical temporal lobe epilepsy connectome fingerprint for seizure outcome prediction.

Brain Commun 2022 17;4(3):fcac128. Epub 2022 May 17.

Institute of Imaging Science, Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, 1161 21st Avenue South, R0102 MCN, Nashville, TN 37232, USA.

Temporal lobe epilepsy presents a unique situation where confident clinical localization of the seizure focus does not always result in a seizure-free or favourable outcome after mesial temporal surgery. In this work, magnetic resonance imaging derived functional and structural whole-brain connectivity was used to compute a network fingerprint that captures the connectivity profile characteristics that are common across a group of nine of these patients with seizure-free outcome. The connectivity profile was then computed for 38 left-out patients with the hypothesis that similarity to the fingerprint indicates seizure-free surgical outcome. Read More

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Electroencephalography, electrocorticography, and cortical stimulation techniques.

Handb Clin Neurol 2022 ;186:11-38

Department of Neurosurgery, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany.

Electroencephalography (EEG) and electrocorticography (ECoG) are two important neurophysiologic techniques used in the operating room for monitoring and mapping electrical brain activity. In this chapter, we detail their principle, recording methodology, and address specifics of their interpretation in the intraoperative setting (e.g. Read More

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January 2022

Determination of Knockdown Resistance (kdr) Allele Frequencies (T929I mutation) in Head Louse Populations from Mexico, Canada, and Peru.

Korean J Parasitol 2022 Jun 30;60(3):217-221. Epub 2022 Jun 30.

Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Laboratorio de Entomología Medica, San Nicolás de los Garza, N.L., 66455, México.

The head louse Pediculus humanus capitis (De Geer) is a hematophagous ectoparasite that inhabits the human scalp. The infestations are asymptomatic; however, skin irritation from scratching occasionally may cause secondary bacterial infections. The present study determined the presence and frequency of the knockdown resistance (kdr) mutation T929I in 245 head lice collected from Mexico, Peru, and Canada. Read More

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The first Aotearoa New Zealand case of NUDT15-variant-related thiopurine-induced myelotoxicity.

N Z Med J 2022 Jul 1;135(1557):93-96. Epub 2022 Jul 1.

Gastroenterologist, Gastroenterology department, Christchurch Hospital, Christchurch, New Zealand.

A 37-year-old Han Chinese man, with a history of severe ulcerative colitis with incomplete response to oral glucocorticoids, was commenced on azathioprine [AZA] 200mg once a day. His pre-treatment thiopurine S-methyltransferase [TPMT] levels were in the normal range. Eleven days later he developed symptoms of stomatitis and gingivitis. Read More

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Towards network-guided neuromodulation for epilepsy.

Brain 2022 Jun 30. Epub 2022 Jun 30.

Department of Neurosurgery, Great Ormond Street Hospital, London, UK.

Epilepsy is well-recognized as a disorder of brain networks. There is a growing body of research to identify critical nodes within dynamic epileptic networks with the aim to target therapies that halt the onset and propagation of seizures. In parallel, intracranial neuromodulation, including deep brain stimulation and responsive neurostimulation, are well-established and expanding as therapies to reduce seizures in adults with focal epilepsy; and there is emerging evidence for their efficacy in children and generalized seizure disorders. Read More

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Current status and development potential of scalp healthcare in the COVID-19 blue era: A critical review focused on Republic of Korea.

J Cosmet Dermatol 2022 Jun 30. Epub 2022 Jun 30.

Division of Beauty Arts Care, Department of Beauty Arts Care, Graduate School, Dongguk University, Seoul, Republic of Korea.

Aims: The purpose of this paper was to review the literature focusing on the scalp health of the Korean people in the COVID-19 Blue era and the possibility of significant development as an academic METHODS: This review paper is a literature review, and the method is a narrative review.

Results: It was found that the higher the awareness of hair loss, the better the scalp and hair management behavior. South Korea needs to develop systematic customized management methods, scalp programs and products due to the development of the COVID-19 era and the development of the 4th industry. Read More

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Experimental suppression of transcranial magnetic stimulation-electroencephalography sensory potentials.

Hum Brain Mapp 2022 Jun 30. Epub 2022 Jun 30.

Veterans Affairs Palo Alto Healthcare System, and the Sierra Pacific Mental Illness, Research, Education, and Clinical Center (MIRECC), Palo Alto, California, USA.

The sensory experience of transcranial magnetic stimulation (TMS) evokes cortical responses measured in electroencephalography (EEG) that confound interpretation of TMS-evoked potentials (TEPs). Methods for sensory masking have been proposed to minimize sensory contributions to the TEP, but the most effective combination for suprathreshold TMS to dorsolateral prefrontal cortex (dlPFC) is unknown. We applied sensory suppression techniques and quantified electrophysiology and perception from suprathreshold dlPFC TMS to identify the best combination to minimize the sensory TEP. Read More

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Perioperative Analgesic Efficacy of Yamamoto New Scalp Acupuncture for Canine Mastectomy Combined with Ovariohysterectomy: a Randomized, Controlled Clinical Trial.

J Acupunct Meridian Stud 2022 Apr;15(2):121-129

Department of Veterinary Surgery and Anestesiology, Faculty of Veterinary Medicine, Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil.

Background: Yamamoto New Scalp Acupuncture (YNSA) is a therapy based on the stimulation of points on the scalp and applied to treat different states of pain.

Objectives: To investigate the analgesic efficacy of YNSA for dogs undergoing radical unilateral mastectomy with ovariohysterectomy.

Methods: Twenty-four dogs were randomly distributed into two treatments ( = 12, per group): bilateral stimulation of basic B, D, and E points (YNSA group) and no application of acupuncture (control group). Read More

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Johanson-Blizzard's Syndrome with a Novel Mutation.

J Pediatr Genet 2022 Jun 4;11(2):147-150. Epub 2020 Sep 4.

Department of Dermatology, Faculty of Medicine, Bahçeşehir University, Istanbul, Turkey.

Johanson-Blizzard syndrome (JBS) is a rare autosomal recessive genetic disorder, characterized by exocrine pancreatic insufficiency, a distinct abnormal facial appearance and varying degrees of growth retardation. Ubiquitin protein ligase E3 component n-recognin 1 ( ) gene mutations are responsible for the syndrome. Here, we describe a 2-month-old female infant, who presented with oily diarrhea, facial dysmorphia, scalp defect, hearing defects, and growth impairment. Read More

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Frontal Fibrosing Alopecia - a review and a practical guide for clinicians.

Ann Agric Environ Med 2022 Jun 31;29(2):169-184. Epub 2021 Aug 31.

Cutaneous Histopathology and Immunopathology Section, Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland.

Despite a significant increase in reported cases of frontal fibrosing alopecia (FFA) in literature, discussion about the possible role of environmental factors, instruction for diagnosis and guideline for treatment, are limited. The review aims to provide a detailed synthesis of this condition that could be used by clinicians in their practise. Whether single-centre or multi-centre, studies of more than 60 cases less than 5 years old were mainly taken into consideration. Read More

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Waveform detection by deep learning reveals multi-area spindles that are selectively modulated by memory load.

Elife 2022 06 29;11. Epub 2022 Jun 29.

Department of Mathematics, Western University, London, Canada.

Sleep is generally considered to be a state of large-scale synchrony across thalamus and neocortex; however, recent work has challenged this idea by reporting isolated sleep rhythms such as slow oscillations and spindles. What is the spatial scale of sleep rhythms? To answer this question, we adapted deep learning algorithms initially developed for detecting earthquakes and gravitational waves in high-noise settings for analysis of neural recordings in sleep. We then studied sleep spindles in non-human primate electrocorticography (ECoG), human electroencephalogram (EEG), and clinical intracranial electroencephalogram (iEEG) recordings in the human. Read More

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Sideburn Reconstruction Using a Pre-Expanded Island Scalp Flap Based on the Parietal Branch of Superficial Temporal Vessels.

J Craniofac Surg 2022 Jun 29. Epub 2022 Jun 29.

Department of Plastic and Reconstructive Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Peking Union Medical college, Beijing, China.

Abstract: Sideburns are crucial for head and face esthetics. Absence of sideburns is associated with physical and psychological consequences. Many methods have been described for sideburn reconstruction; however, characteristics of the ideal method include optimal vascularization, ideal hair density, natural hair growth, and facial symmetry with minimum donor-site morbidity. Read More

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[Clinical effects of autologous follicular unit extraction transplantation in the treatment of small area secondary cicatricial alopecia after burns].

Zhonghua Shao Shang Za Zhi 2022 Jun;38(6):532-537

Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China.

To explore the clinical effects of autologous follicular unit extraction (FUE) transplantation in the treatment of small area secondary cicatricial alopecia (hereinafter referred to as cicatricial alopecia) after burns. A retrospective observational study was carried out. According to the adopted treatment methods, 18 patients (12 males and 6 females, aged (29±6) years) who received autologous FUE transplantation for small area cicatricial alopecia after burns from March 2017 to November 2019 in the First Affiliated Hospital of Air Force Medical University were included in FUE transplantation group, and 18 patients (13 males and 5 females, aged (33±5) years) who were treated with expanded flap transplantation for small area cicatricial alopecia after burns by the same surgery team during the same period in the same hospital were included in expanded flap transplantation group. Read More

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[Effects of comprehensive treatment of infected wounds in patients with iatrogenic Cushings syndrome].

Zhonghua Shao Shang Za Zhi 2022 Jun;38(6):512-519

Department of Endocrinology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.

To investigate the characteristics and comprehensive treatment of infected wounds in patients with iatrogenic Cushing's syndrome. A retrospective observational study was conducted. From May 2012 to December 2021, the data of 19 patients with iatrogenic Cushing's syndrome discharged from the Department of Burns and Plastic Surgery of the First Affiliated Hospital of Guangxi Medical University were collected, including 8 males and 11 females, aged 28-71 (56±11) years, with 12 cases of infected acute wounds and 7 cases of infected chronic wounds. Read More

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Pearls & Oy-sters: Two Cases of Stereotactic EEG-Proven Insular Epilepsy With Non-localizing Scalp EEG and Interesting Semiologies.

Neurology 2022 Jun 28. Epub 2022 Jun 28.

Department of Neurology, University of Texas Southwestern Medical Center.

Insular epilepsy is a great mimicker and can be mistaken for seizures originating from other areas of the brain or as non-epileptic spells. The semiology of insular epilepsy can include, but is not limited to, auditory illusions, paresthesias, gastric rising, laryngeal constriction, and hyperkinetic movements. These arise from both the functions of the insula itself and its extensive connections with other regions of the brain. Read More

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A puzzling case of Multiple asymptomatic nodules over scalp - a case report.

J Cutan Pathol 2022 Jun 28. Epub 2022 Jun 28.

Department of dermatology venereology and leprosy at Shardaben general hospital, Ahmedabad.

Cirsoid aneurysms (CAs) of the scalp are rare arteriovenous (AV) malformations presenting as nodular lesions over scalp. Depending on the size and intracranial extension, they can vary from asymptomatic lesions to being potentially lethal due to secondary haemorrhage. Being a vascular lesion, clinically misdiagnosed cases may lead to devastating outcome on any kind of diagnostic surgical intervention. Read More

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Giant Skull Tumor: A Benign Meningioma.

J Craniofac Surg 2022 Jun 28. Epub 2022 Jun 28.

Department of Pathology and Laboratory Medicine, Jordan university of Science and Technology, Irbid, Jordan.

Abstract: A 37-year-old male patient was complaining from painless forehead swelling, which started 5 years ago. Brain computed tomography scan and magnetic resonance imaging showed a large extradural mass compressing the both frontal lobes with skull bone infiltration, hyperostosis and enlargement. The patient was operated in 2 stages. Read More

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Treatment of hereditary hypotrichosis simplex of the scalp with oral minoxidil and growth factors.

Dermatol Ther 2022 Jun 27:e15671. Epub 2022 Jun 27.

Dermatology Unit, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy.

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Non-invasive auditory brainstem responses to FM sweeps in awake big brown bats.

J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2022 Jun 28. Epub 2022 Jun 28.

Carney Institute for Brain Science, Brown University, Providence, RI, 02912, USA.

We introduce two EEG techniques, one based on conventional monopolar electrodes and one based on a novel tripolar electrode, to record for the first time auditory brainstem responses (ABRs) from the scalp of unanesthetized, unrestrained big brown bats. Stimuli were frequency-modulated (FM) sweeps varying in sweep direction, sweep duration, and harmonic structure. As expected from previous invasive ABR recordings, upward-sweeping FM signals evoked larger amplitude responses (peak-to-trough amplitude in the latency range of 3-5 ms post-stimulus onset) than downward-sweeping FM signals. Read More

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Smartphone-based photogrammetry provides improved localization and registration of scalp-mounted neuroimaging sensors.

Sci Rep 2022 Jun 27;12(1):10862. Epub 2022 Jun 27.

Department of Developmental and Social Psychology, University of Padova, via Venezia 8, 35131, Padua, Italy.

Functional near infrared spectroscopy and electroencephalography are non-invasive techniques that rely on sensors placed over the scalp. The spatial localization of the measured brain activity requires the precise individuation of sensor positions and, when individual anatomical information is not available, the accurate registration of these sensor positions to a head atlas. Both these issues could be successfully addressed using a photogrammetry-based method. Read More

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The influence of sensory potentials on transcranial magnetic stimulation - Electroencephalography recordings.

Clin Neurophysiol 2022 Jun 11;140:98-109. Epub 2022 Jun 11.

Center for Pain IMPACT, Neuroscience Research Australia, Sydney, New South Wales, Australia.

Objective: It remains unclear to what extent Transcranial Magnetic Stimulation-evoked potentials (TEPs) reflect sensory (auditory and somatosensory) potentials as opposed to cortical excitability. The present study aimed to determine; a) the extent to which sensory potentials contaminate TEPs using a spatially-matched sham condition, and b) whether sensory potentials reflect auditory or somatosensory potentials alone, or a combination of the two.

Methods: Twenty healthy participants received active or sham stimulation, with the latter consisting a sham coil click combined with scalp electrical stimulation. Read More

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Dr Agnes Savill: Pioneer, polymath and dermatology's renaissance woman.

Authors:
Daniel Creamer

J Med Biogr 2022 Jun 26:9677720221106794. Epub 2022 Jun 26.

8948King's College Hospital NHS Foundation Trust, London, UK.

Dr Agnes Savill was the UK's first female consultant dermatologist with a career journey which was, by any standards, extraordinary. She was awarded her MA in 1893 making her the first female graduate from St Andrews University. She then trained as a doctor in Glasgow in the earliest cohort of women granted the opportunity to study medicine. Read More

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Child maltreatment affects fathers' response to infant crying, not mediated by cortisol or testosterone.

Compr Psychoneuroendocrinol 2021 Nov 28;8:100083. Epub 2021 Aug 28.

Clinical Child & Family Studies, Vrije Universiteit Amsterdam, the Netherlands.

Parents' ability to appropriately respond to infant crying is essential for parental care and has been found to relate to parents' own childhood experiences. Additionally, childhood experiences can affect endocrine factors, which may subsequently affect behavior. In the current study, preregistered on https://osf. Read More

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November 2021

Social connectedness and hair cortisol in community-dwelling older adults.

Compr Psychoneuroendocrinol 2021 May 27;6:100053. Epub 2021 Mar 27.

Center for Interdisciplinary Approaches on Aging, Yonsei University, Seoul, Republic of Korea.

Purpose: Hair cortisol is emerging as a reliable biomarker for measuring retrospective stress hormone levels. Given that social connectedness can buffer psychobiological stress reactivity, increasing attention is being paid to the specific types of social networks associated with the stress response. This study investigated the role played by two components of social life, emotional closeness and network size, to probe which aspects of social networks were related to stress measures. Read More

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Tracheobronchomalacia causing end expiratory grunt post-intubation.

Anaesth Rep 2022 Jan-Jun;10(1):e12170. Epub 2022 Jun 17.

Department of Anaesthesia Northland District Health Board Whangarei New Zealand.

Tracheobronchomalacia is a rare, often asymptomatic, progressive disease characterised by a complete or near-complete collapse of the airway during expiration. Only a few cases have been reported as being diagnosed intra-operatively. Here, we report a case of tracheobronchomalacia diagnosed under general anaesthesia in a 52-year-old man undergoing elective excision of basal and squamous cell carcinomas of the scalp, face and arm. Read More

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A Case Report of a Cutaneous Mucinous Reaction Associated with Erlotinib Therapy Used in the Treatment of Metastatic Tonsillar Sinus Squamous Cell Carcinoma.

J Immunother Precis Oncol 2020 Feb 13;3(1):31-33. Epub 2019 Dec 13.

Department of Dermatology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.

Cutaneous mucinoses are a diverse group of diseases that are occasionally seen in the context of an adverse drug reaction. We report the case of a 59-year-old male who presented with an asymptomatic, acneiform rash on his forehead, scalp, nose, upper chest, and upper back that had developed after treatment with erlotinib therapy used in the treatment of metastatic tonsillar sinus squamous cell carcinoma. Biopsy of these lesions demonstrated atypical histology that had features of both follicular mucinosis and myxedema. Read More

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February 2020