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ORIGINAL RESEARCH
Dihydrotestosterone in Amyotrophic lateral sclerosis—The missing link?
- First Published: 13 October 2020

CSF levels of dihydrotestosterone were measured in 13 ALS patients [7 males and 6 females] and in 22 controls [12 males and 10 females], and we found that CSF dihydrotestosterone levels were significantly decreased in all the male and female ALS patients dihydrotestosterone probably plays a key role in ALS pathogenesis.
Brain reactions to the use of sensorized hand prosthesis in amputees
- First Published: 19 September 2020

Recent technological advancements have allowed for a bidirectional connection of the prosthetic hand via intraneural electrodes in stump nerve trunks. No reports are available so far on modifications in brain function accompanying the use of a bidirectional hand prosthesis. We performed a multimodal neurophysiological and neuroimaging evaluation of brain functional changes occurring during training with a bidirectional hand prosthesis in five consecutive patients, and demonstrating brain functional changes related to the use of the prosthetic hand.
Vitamin D supplementation improves anxiety but not depression symptoms in patients with vitamin D deficiency
- First Published: 18 September 2020
Pathways to post-traumatic stress disorder and alcohol dependence: Trauma, executive functioning, and family history of alcoholism in adolescents and young adults
- First Published: 29 September 2020

Findings from this study demonstrate associations with PTSD and alcohol dependence symptom counts, as well as poor problem-solving ability in trauma-exposed individuals from families densely affected with alcohol dependence, depending on trauma type, FH density of alcoholism, and sex. This suggests that having a FH of alcohol dependence and exposure to trauma during adolescence may be associated with more PTSD and alcohol dependence symptoms, and poor problem-solving abilities in adulthood.
Clock-drawing test: Normative data of three quantitative scoring methods for Chinese-speaking adults in Shijiazhuang City and clinical utility in patients with acute ischemic stroke
- First Published: 27 August 2020
COMMENTARY
Stellate ganglion block treats posttraumatic stress: An example of precision mental health
- First Published: 28 August 2020
ORIGINAL RESEARCH
The diagnostic potential of multimodal neuroimaging measures in Parkinson's disease and atypical parkinsonism
- First Published: 07 October 2020

The addition of functional measures (ReHo and DegCen) to the structural measure (Vol) generally yielded statistically significant improvements to classification accuracy, compared to the use of the structural measure alone, across different problems of distinguishing between healthy controls (HC) and each diagnostic type of parkinsonism (PD, MSA, and PSP) and between different diagnostic types of parkinsonism.
Associations between apparent diffusion coefficient values and histopathological tissue alterations in myopathies
- First Published: 29 August 2020
Propofol inhibits the expression of Abelson nonreceptor tyrosine kinase without affecting learning or memory function in neonatal rats
- First Published: 01 September 2020
Variability in body weight precedes diagnosis in dementia: A nationwide cohort study
- First Published: 28 August 2020
Neurogenic dysphagia in traditional Chinese medicine
- First Published: 18 September 2020

The concept of neurogenic dysphagia was first described as Hou Bi in the Yellow Emperor's Internal Classic, which is the first Chinese medical classic and origin of traditional Chinese medicine (TCM) theory. In different eras, the pathogenesis of neurogenic dysphagia was explained by three theories in TCM including wind-phlegm blocking collaterals, deficiency of liver and kidney-essence, and Qi-stagnation with static blood. In addition to the TCM prescriptions, acupuncture is characteristic and seems to be effective. However, the evidences of efficacy and safety from clinical trials are required.
Effects of mood episodes and comorbid anxiety on neuropsychological impairment in patients with bipolar spectrum disorder
- First Published: 30 August 2020
Using machine-learning approach to distinguish patients with methamphetamine dependence from healthy subjects in a virtual reality environment
- First Published: 29 August 2020
Behavioral changes and gene profile alterations after chronic 1,950-MHz radiofrequency exposure: An observation in C57BL/6 mice
- First Published: 28 August 2020

Young- and middle-aged C57BL/6 mice, aged 2 and 12 months, were exposed to 1,950-MHz RF-EMF at an absorption rate of 5.0 W/kg for 2 hr/day and 5 days/week for 8 months. We found an association between chronic RF-EMF exposure-induced behavioral improvement and hippocampal gene signature in middle-aged mice.
Development of a Thai tool for assessing behavioral and psychological symptoms of dementia: A confirmatory factor analysis
- First Published: 28 August 2020

Confirmatory factor analysis showed the goodness of fit of 5 clusters of BPSD-T included a psychomotor syndrome (aggression, irritability, delusions, insomnia), an affective syndrome (apathy, repeating, anxiety, depression), a psychosis syndrome (misidentification, hallucinations), a behavior syndrome (hoarding, rummaging, wandering), and a euphoria syndrome (euphoria).
The effects of dietary edible bird nest supplementation on learning and memory functions of multigenerational mice
- First Published: 04 September 2020
Prevalence and risk factors of mental distress in China during the outbreak of COVID-19: A national cross-sectional survey
- First Published: 01 September 2020

In national cross-sectional survey with largest participants in china, we pose serious challenges related to the high prevalence of psychological distress, find out major risk factors for them, and then offer evidence-based strategies to deal with the mental health problems caused by the COVID-19 pandemic. Our research also provides evidences for other countries suffering from the COVID-19 to take public health interventions to relieve the public psychological pressure.
Epidemiology of Myasthenia Gravis in Sweden 2006–2016
- First Published: 01 September 2020
Network of ictal head version in mesial temporal lobe epilepsy
- First Published: 28 August 2020
Preliminary results of posterior contralateral cervical 7 nerve transposition in the treatment of upper limb plegia after a stroke
- First Published: 06 September 2020

This study aimed to explore a shorter and safer contralateral C7 transposition pathway for the treatment of central upper limb paralysis. The distance of nerve transposition can be shortened by a posterior vertebral approach operation, where the contralateral C7 nerve can be anastomosed directly with the ipsilateral C7 nerve. In this approach, nerve transplantation is not needed and it is conducive to nerve regeneration and functional recovery.
Can dementia be predicted using olfactory identification test in the elderly? A Bayesian network analysis
- First Published: 31 August 2020
Clinical management of hip fractures in elderly patients with dementia and postoperative 30-day mortality: A population-based cohort study
- First Published: 06 September 2020

In this register- and population-based cohort study of 12,309 older adults (age 70+) with hospital admission for a first-time hip fracture in 2013–2014, we found an increased 30-day postoperative mortality in patients with dementia. However, this excess mortality was not explained by the clinical factors examined (out-of-hours admission, surgery on weekends, anesthesia technique, and surgery volume per ward). Additionally, we found no difference in time to surgery by the patient's dementia status.
Antrodia camphorata polysaccharide resists 6-OHDA-induced dopaminergic neuronal damage by inhibiting ROS-NLRP3 activation
- First Published: 09 September 2020
Remodeling of brain morphology in temporal lobe epilepsy
- First Published: 17 September 2020

In focal cryptogenic epilepsy, morphological abnormalities often remain undetected at the macroscopic brain level. We use Multivariate Bayesian modeling analysis to link the spatial patterns of brain anatomy remodeling in temporal lobe epilepsy patients with their clinical phenotype. This approach allows detecting the regions which have an impact on the ongoing disease process. Our study could serve as proof-of-concept for the added value of topology analysis for detection of focal structural abnormalities in focal epilepsy that can be further implemented for other brain disorders.
High-resolution, relational, resonance-based, electroencephalic mirroring (HIRREM) improves symptoms and autonomic function for insomnia: A randomized, placebo-controlled clinical trial
- First Published: 17 September 2020

This controlled clinical trial observed significant added benefit to reduce symptoms of insomnia with use of a closed-loop, acoustic stimulation neurotechnology that echoes tones linked to brainwaves (HIRREM), compared to a sham using randomly generated tones. There was also significant improvement in multiple measures of autonomic cardiovascular regulation, with durability to 4 months postintervention, and group differences for sleep efficiency, total sleep time, and sleep onset latency. Results suggest that this noninvasive, nondrug intervention could provide a viable alternative for moderate to severe insomnia.
Clinical features, MRI, and 18F-FDG-PET in differential diagnosis of Parkinson disease from multiple system atrophy
- First Published: 17 September 2020

This study identified the distinctive features of the clinic symptoms, MRI irregularity, and glucose metabolism on 18F-FDG-PET, which provided a new basis for the differential diagnosis of Parkinson's disease (PD), MSA with predominant Parkinsonism (MSA-P), and MSA with predominant cerebellar features (MSA-C).
Two simple and rapid methods based on maximum diameter accurately estimate large lesion volumes in acute stroke
- First Published: 09 September 2020

Assessment of lesion volume of infarcted tissue is often used in stroke trials to select patients most likely to benefit from thrombolysis. Here, we demonstrate that two simple diameter-based methods can accurately estimate lesion size with high sensitivity and specificity in the time-sensitive setting of acute stroke.
Incidence and lesions causative of delusional misidentification syndrome after stroke
- First Published: 07 September 2020
REVIEW
Memantine, Donepezil, or Combination Therapy—What is the best therapy for Alzheimer’s Disease? A Network Meta-Analysis
- First Published: 10 September 2020
ORIGINAL RESEARCH
Apoaequorin differentially modulates fear memory in adult and aged rats
- First Published: 18 September 2020

Two experiments were conducted to evaluate the impact of direct intrahippocampal infusion of the calcium binding protein apoaequorin (AQ) on trace and context fear memory. Experiment 1 involved a single infusion prior to training and experiment 2 involved an infusion prior to training and testing. Trace and context fear memory were impaired in aged rats relative to adult rats. Direct intrahippocampal infusion of AQ prior to both conditioning and testing reversed the aging-related context fear memory deficits.
Anterior cingulate gamma-aminobutyric acid concentrations and electroconvulsive therapy
- First Published: 17 September 2020

In depressed subjects treated with ECT (n = 40), gamma-aminobutyric acid (GABA+) levels did not change over treatment and we found no association between GABA+ levels and antidepressant response. However, change of GABA+ was associated with cognitive performance in a subset of patients (n = 24) who completed cognitive testing.
Faced with one’s fear: Attentional bias in anorexia nervosa and healthy individuals upon confrontation with an obese body stimulus in an eye-tracking paradigm
- First Published: 12 September 2020

Both women with anorexia nervosa (AN) and healthy controls exhibited an attention bias toward subjectively unattractive body parts when viewing the own and an obese body stimulus. The bias was more pronounced in AN when confronted with the obese stimulus. Both groups also gazed longer at body parts indicative of weight status.
The relationship among fear and anxiety of COVID-19, pregnancy experience, and mental health disorder in pregnant women: A structural equation model
- First Published: 23 September 2020
Neural and physiological relations observed in musical beat and meter processing
- First Published: 12 September 2020

The current study reported a neural–physiological link that has not been previously discussed. Specifically, neural processing of music rhythm and the activity of parasympathetic nervous system (PSNS) are significantly related across individuals. These results shed light a new research direction in music cognition.
Mental health and quality of life among healthcare professionals during the COVID-19 pandemic in India
- First Published: 11 September 2020

In this cross-sectional survey of 204 Health Care Professionals (HCPs) from 13 states of India we found a high burden of depression and anxiety among young, unmarried HCPs serving COVID-19 patients. Further, we found that mental health distress negatively impacted overall quality of life. In countries like India where COVID-19 is rapidly spreading, there is an urgent need to safeguard the mental health of HCPs.
REVIEWS
Sudden death in epilepsy: There is room for intracranial pressure
- First Published: 19 September 2020

Seizures may in certain cases elicit acute edema which may represent an additional contributing factor in the cascade of events leading to SUDEP. We hypothesize that mild edema may especially progress to severe edema in certain patients e.g. those with sodium channel mutations which may represent an important mechanism to investigate in the context of understanding the significantly elevated risk of SUDEP in patients with SCN1A mutations.
Can symptoms of anosmia and dysgeusia be diagnostic for COVID-19?
- First Published: 16 September 2020
ORIGINAL RESEARCH
Modulation of behavioral responses and CA1 neuronal death by nitric oxide in the neonatal rat's hypoxia model
- First Published: 16 September 2020

Because there are many conflicting reports on the role of NO in learning and memory processes following brain injury, in this work, we induced hypoxia model in neonate rats as a sensitive period of synaptic plasticity formation on memory, and after exposing neonate rats to hypoxia, to evaluate the neuromodulatory effect of NO, we tested memory and histomorphometric changes in adult rat offspring in the presence of NO agonist and antagonist. Our main research findings were memory impairment and hippocampus cell atrophy in hypoxia rat, whereas the NOS inhibitor, L-NAME, significantly attenuated the negative effects of hypoxia on behavior and observed changes in the hippocampus.
REVIEW
Cognitive impairment in NMOSD—More questions than answers
- First Published: 06 October 2020

One of the most disabling symptoms of demyelinating diseases, diagnosed in 29%–67% of patients with NMOSD, is cognitive dysfunction, with such processes as memory, processing speed, executive function, attention, and verbal fluency being predominantly affected. However, description of cognition in NMOSD patients is still a relatively new area of research. In this review, we summarize the current knowledge on cognitive impairment profile, neuropsychological tests used to examine NMOSD patients, clinical and demographical variables affecting cognition, and magnetic resonance imaging correlates.
ORIGINAL RESEARCH
Time will tell: Decision making in premanifest and manifest Huntington’s disease
- First Published: 26 September 2020
Altered long- and short-range functional connectivity density associated with poor sleep quality in patients with chronic insomnia disorder: A resting-state fMRI study
- First Published: 16 September 2020

Using graph theory assessment and functional connectivity density (FCD) methods to investigate the insomnia-related alterations to the intrinsic connectome in patients with CID patients, we found that insufficient sleep during chronic insomnia widely affects cortical functional activities, including disrupted FCD and increased short-range FCD, which is associated with poor sleep quality.