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https://www.readbyqxmd.com/read/29328005/a-novel-use-of-the-neuroblate-sidefire-probe-for-minimally-invasive-disconnection-of-a-hypothalamic-hamartoma-in-a-child-with-gelastic-seizures
#1
James M Wright, Michael D Staudt, Andrea Alonso, Jonathan P Miller, Andrew E Sloan
The authors describe the case of a 22-month-old boy who presented with gelastic seizures and developmental delay. Magnetic resonance imaging and video-electroencephalography monitoring revealed a primarily intraventricular hypothalamic hamartoma and gelastic seizures occurring 20-30 times daily. The patient was treated with various regimens of antiepileptic medications for 16 months, but the seizures remained medically intractable. At 3 years of age, he underwent stereotactic laser ablation with an aim of disconnection of the lesion...
January 12, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29321684/leptin-and-the-maintenance-of-elevated-body-weight
#2
REVIEW
Warren W Pan, Martin G Myers
Obesity represents the single most important risk factor for early disability and death in developed societies, and the incidence of obesity remains at staggering levels. CNS systems that modulate energy intake and expenditure in response to changes in body energy stores serve to maintain constant body adiposity; the adipocyte-derived hormone leptin and its receptor (LEPR) represent crucial regulators of these systems. As in the case of insulin resistance, a variety of mechanisms (including feedback inhibition, inflammation, gliosis and endoplasmic reticulum stress) have been proposed to interfere with leptin action and impede the systems that control body energy homeostasis to promote or maintain obesity, although the relative importance and contribution of each of these remain unclear...
January 11, 2018: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/29315422/dietary-therapy-restores-glutamatergic-input-to-orexin-hypocretin-neurons-after-traumatic-brain-injury-in-mice
#3
Jonathan E Elliott, Samuel E De Luche, Madeline J Churchill, Cindy Moore, Akiva S Cohen, Charles K Meshul, Miranda M Lim
Study Objectives: In previous work, dietary branched chain amino acid (BCAA) supplementation, precursors to de novo glutamate and gamma-aminobutyric acid (GABA) synthesis, restored impaired sleep-wake regulation and orexin neuronal activity post-traumatic brain injury (TBI) in mice. TBI was speculated to reduce orexin neuronal activity through decreased regional excitatory (glutamate) and/or increased inhibitory (GABA) input. Therefore, we hypothesized TBI would decrease synaptic glutamate and/or increase synaptic GABA in nerve terminals contacting orexin neurons, and BCAA supplementation would restore TBI-induced changes in synaptic glutamate and/or GABA...
January 5, 2018: Sleep
https://www.readbyqxmd.com/read/29230635/quality-of-life-and-growth-after-childhood-craniopharyngioma-results-of-the-multinational-trial%C3%A2-kraniopharyngeom-2007
#4
Kerstin Heinks, Svenja Boekhoff, Anika Hoffmann, Monika Warmuth-Metz, Maria Eveslage, Junxiang Peng, Gabriele Calaminus, Hermann L Müller
CONTEXT: Quality of life (QoL) after childhood-onset craniopharyngioma (CP) is frequently impaired due to tumor and/or treatment-related factors such as endocrine deficits and hypothalamic involvement/lesions. PATIENTS AND METHODS: In a multinational trial, we prospectively analyzed parental and self-assessment of CP patient QoL at 3 months, 1 and 3 years after CP diagnosis related to growth hormone (GH) substitution. 47 of 194 CP recruited between 2007 and 2015 in KRANIOPHARYNGEOM 2007 were analyzed for QoL 1 and 3 years after CP diagnosis...
December 11, 2017: Endocrine
https://www.readbyqxmd.com/read/29197651/yawning-its-anatomy-chemistry-role-and-pathological-considerations
#5
REVIEW
Heinz Krestel, Claudio L Bassetti, Olivier Walusinski
Yawning is a clinical sign of the activity of various supra- and infratentorial brain regions including the putative brainstem motor pattern, hypothalamic paraventricular nucleus, probably the insula and limbic structures that are interconnected via a fiber network. This interaction can be seen in analogy to other cerebral functions arising from a network or zone such as language. Within this network, yawning fulfills its function in a stereotype, reflex-like manner; a phylogenetically old function, preserved across species barriers, with the purpose of arousal, communication, and maybe other functions including respiration...
November 29, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/29175721/de-masking-oxytocin-deficiency-in-craniopharyngioma-and-assessing-its-link-with-affective-function
#6
Dorothea Gebert, Matthias K Auer, Mareike R Stieg, Martin T Freitag, Madlén Lahne, Johannes Fuss, Katharina Schilbach, Jochen Schopohl, Günter K Stalla, Anna Kopczak
Despite the high prevalence of panhypopituitarism and diabetes insipidus in patients with craniopharyngioma (CP), little is known about the functioning of the neuropeptide oxytocin in these patients. This is of special interest as tumor-associated lesions often impair sites critical for oxytocin production and release, and affective dysfunction in CP links with elsewhere reported prosocial, antidepressant and anxiolytic oxytocin effects. Using a prospective study-design, we tested whether oxytocin is reduced in CP-patients, and whether altered oxytocin levels account for affective and emotional dysfunction...
November 14, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29167166/blood-borne-interleukin-1%C3%AE-acts-upon-the-subfornical-organ-to-upregulate-the-sympathoexcitatory-milieu-of-the-hypothalamic-paraventricular-nucleus
#7
Shun-Guang Wei, Yang Yu, Robert B Felder
We previously reported that microinjection of the pro-inflammatory cytokine interleukin-1 beta (IL-1β) into the subfornical organ (SFO) elicits a pressor response accompanied by increases in inflammation and renin-angiotensin system (RAS) activity in the SFO and in the hypothalamic paraventricular nucleus (PVN). The present study sought to determine whether blood-borne IL-1β induces similar neurochemical changes in the SFO and PVN, and, if so, whether increased inflammation and RAS activity at the SFO level orchestrate the sympathoexcitatory response to circulating IL-1β...
November 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29158781/hypothalamic-beta-endorphin-neurons-suppress-preneoplastic-and-neoplastic-lesions-development-in-1-2-dimethylhydrazine-induced-rat-colon-cancer-model
#8
Sengottuvelan Murugan, Yatee Dave, Ankush Rakhit, Dipak K Sarkar
In recent years, experimental studies demonstrated negative impacts of impaired body stress response on colonic pathologies. In this study, we tested if reducing body stress response by the use of β-endorphin (BEP) neuronal transplants in the hypothalamus suppresses pre-neoplastic and neoplastic lesions. Colon cancer was induced by injecting 1,2-dimethylhydrazine (DMH) for sixteen weeks in Sprague Dawley rats with BEP neuron transplants or control neuron transplants, and their colonic histopathologies, colon tissue levels of pro-inflammatory cytokines and epithelial-mesenchymal transition (EMT) proteins and splenic levels of cytotoxic proteins were measured...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29155113/small-cell-glioblastoma-of-the-sella-turcica-region-a-case-report-and-review-of-the-literature
#9
Shuanglin Deng, Linlin Liu, Danhua Wang, Dan Tong, Gang Zhao
BACKGROUND: Glioblastomas in the sellar region are very rare; in most cases, the tumor originates from the optic nerve/optic chiasm. Only 4 cases of sellar glioblastoma with a non-optic origin have been reported. We present such a case with detailed clinical, imaging and histopathological information. A review of similar published cases is also presented. CASE PRESENTATION: A 42-year-old woman presented with endocrinological abnormalities including, amenorrhea and lactation, symptoms of diabetes insipidus and signs of elevated ICP...
November 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29125446/suprasellar-and-recurrent-pediatric-craniopharyngiomas-expanding-indications-for-the-extended-endoscopic-transsphenoidal-approach
#10
Andrew F Alalade, Elizabeth Ogando-Rivas, Jerome Boatey, Mark M Souweidane, Vijay K Anand, Jeffrey P Greenfield, Theodore H Schwartz
OBJECTIVE The expanded endonasal endoscopic transsphenoidal approach has become increasingly used for craniopharyngioma surgery in the pediatric population, but questions still persist regarding its utility in younger children, in recurrent and irradiated tumors, and in masses primarily located in the suprasellar region. The narrow corridor, incomplete pneumatization, and fear of hypothalamic injury have traditionally relegated this approach to application in older children with mostly cystic craniopharyngiomas centered in the sella...
November 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29121431/outcomes-of-oral-lichen-planus-and-oral-lichenoid-lesions-treated-with-topical-corticosteroid
#11
M A Gonzalez-Moles, J A Gil-Montoya, L Gonzalez-Ruiz, P Ramos, M Bravo
OBJECTIVE: To determine corticosteroid treatment effectiveness in patients with Oral Lichen Planus/Oral Lichenoid Lesions (OLP/OLL). MATERIAL AND METHODS: Twenty-one OLP and eighty-one OLL patients received 0.05% clobetasol propionate (CP) or 0.05% triamcinolone acetonide (TA) in aqueous solution (AS) or orabase (OB), evaluating responses to treatment and follow-up compliance. RESULTS: Lesions were atrophic (72/102; 70.6%), extensive (58/100; 58%), producing eating difficulties (62/102; 60...
November 9, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29112878/reproductive-and-endocrine-disrupting-toxicity-of-microcystis-aeruginosa-in-female-zebrafish
#12
Guangfu Liu, Mingjing Ke, Xiaoji Fan, Meng Zhang, Youchao Zhu, Tao Lu, Liwei Sun, Haifeng Qian
Microcystis aeruginosa, a primary species in cyanobacterial blooms, is ubiquitously distributed in water. Microcystins (MCs) purified from M. aeruginosa can exert reproductive toxicity in fish. However, the effects of M. aeruginosa at environmentally relevant levels on the reproductive and endocrine systems of zebrafish are still unknown. The present study investigated the reproductive and endocrine-disrupting toxicity of M. aeruginosa on female zebrafish (Danio rerio) by short-term exposure (96 h). After exposure, marked histological lesions in the liver or gonads, such as nuclear pyknosis and deformation, were observed, and the fertilization rate and hatchability of eggs spawned from treated females were both significantly lower than they were in females in the control group, suggesting the possibility of transgenerational effects of M...
February 2018: Chemosphere
https://www.readbyqxmd.com/read/29103920/influence-of-the-anteromedial-thalamus-on-social-defeat-associated-contextual-fear-memory
#13
Miguel J Rangel, Marcus Vinicius C Baldo, Newton Sabino Canteras
The ventral part of the anteromedial thalamic nucleus (AMv) is heavily targeted by the dorsal premammillary nucleus (PMd), which is the main hypothalamic site that is responsive to both predator and conspecific aggressor threats. This PMd-AMv pathway is likely involved in modulating memory processing, and previous findings from our group have shown that cytotoxic lesions or pharmacological inactivation of the AMv drastically reduced contextual fear responses to predator-associated environments. In the present study, we investigated the role of the AMv in both unconditioned (i...
November 2, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29080684/chronic-social-stress-ameliorates-psoriasiform-dermatitis-through-upregulation-of-the-hypothalamic-pituitary-adrenal-axis
#14
Oscar Vegas, Brian Poligone, Paul Blackcloud, Elaine S Gilmore, JoAnne VanBuskirk, Christopher T Ritchlin, Alice P Pentland, Scott A Walter, Yasmine Nousari, Francisco Tausk
Acute stress is a physiological response of an organism to adverse conditions, contributing to survival; however, persistence through time may lead to disease. Indeed, exacerbation of inflammatory conditions such as psoriasis has been reported to follow stressors in susceptible patients. Because chronic stress cannot ethically be elicited in patients under controlled laboratory conditions, we studied genetically modified mice that naturally develop psoriasiform dermatitis, and subjected them to an ethological chronic social contact stress paradigm...
October 25, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29076472/-a-rare-case-of-diencephalic-cachexia-in-an-adult-female-with-cranio-pharyngioma
#15
I S Klochkova, L I Astaf'eva, A N Konovalov, B A Kadashev, P L Kalinin, O I Sharipov, M A Kutin, Yu G Sidneva, L V Shishkina, I N Pronin
Diencephalic cachexia (DС) is progressive weight loss despite a normal caloric intake and a satisfactory state of health, which is caused by hypothalamic lesions. This is a rare (about 100 cases were reported) and potentially fatal disorder of unknown pathogenesis. At present, there is no effective pharmacological therapy for the disorder. Cachexia may regress only if the tumor reduces in size, therefore the timely diagnosis and treatment are of vital importance for the patient. DС is typical of early childhood, and only a few cases have been reported in adults...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29038894/the-supraorbital-eyebrow-approach-for-removal-of-craniopharyngioma-in-children-a-case-series
#16
Ricardo Santos de Oliveira, Dinark Conceição Viana, Lucas Pires Augusto, Marcelo Volpon Santos, Hélio Rubens Machado
OBJECTIVE: Craniopharyngiomas can be a surgical challenge for the pediatric neurosurgeon. Ideally, total removal must be achieved. However, the need to reduce surgical morbidity and preserve quality of life has led to a number of neurosurgical approaches in order to attain this goal. The aim of this article is to present an alternative surgical approach to these lesions and to provide the rationale for this technique. MATERIAL AND METHODS: Medical charts and operative records of eight pediatric patients harboring craniopharyngiomas who underwent surgical treatment using a supraorbital eyebrow approach (SOA) were reviewed from 2014 to 2016...
October 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29026268/characteristic-clinical-features-of-adipsic-hypernatremia-patients-with-subfornical-organ-targeting-antibody
#17
Akari Nakamura-Utsunomiya, Takeshi Y Hiyama, Satoshi Okada, Masaharu Noda, Masao Kobayashi
Adipsic hypernatremia is a rare disease presenting as persistent hypernatremia with disturbance of thirst regulation and hypothalamic dysfunction. As a result of congenital disease, tumors, or inflammation, most cases are accompanied by structural abnormalities in the hypothalamic-pituitary area. While cases with no hypothalamic-pituitary structural lesion have been reported, their etiology has not been elucidated. Recently, we reported three patients with adipsic hypernatremia whose serum-derived immunoglobulin (Ig) specifically reacted with mouse subfornical organ (SFO) tissue...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/28979194/the-locus-coeruleus-norepinephrine-system-mediates-empathy-for-pain-through-selective-up-regulation-of-p2x3-receptor-in-dorsal-root-ganglia-in-rats
#18
Yun-Fei Lü, Yan Yang, Chun-Li Li, Yan Wang, Zhen Li, Jun Chen
Empathy for pain (vicariously felt pain), an ability to feel, recognize, understand and share the painful emotions of others, has been gradually accepted to be a common identity in both humans and rodents, however, the underlying neural and molecular mechanisms are largely unknown. Recently, we have developed a rat model of empathy for pain in which pain can be transferred from a cagemate demonstrator (CD) in pain to a naïve cagemate observer (CO) after 30 min dyadic priming social interaction. The naïve CO rats display both mechanical pain hypersensitivity (hyperalgesia) and enhanced spinal nociception...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28977204/tadalafil-protective-action-against-the-development-of-multiple-organ-failure-syndrome
#19
Granville G de Oliveira, Samer A H de Oliveira, Paulo Henrique H Botelho, Marcos Aurelio Barboza de Oliveira, Ka Bian, Ferid Murad
INTRODUCTION: Multiple organ failure syndrome (MOFS) is a pathology associated to unspecified and severe trauma, characterized by elevated morbidity and mortality. The complex inflammatory MOFS-related reactions generate important ischemia-reperfusion responses in the induction of this syndrome. Nitric oxide elevation, through the activation of cyclic guanosine monophosphate (cGMP), has the potential of counteracting the typical systemic vasoconstriction, and platelet-induced hypercoagulation...
July 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28946146/third-ventricle-germ-cell-tumor-originating-from-the-infundibulum-with-rapidly-expansive-enlargement
#20
Yuichiro Yoneoka, Junichi Yoshimura, Masakazu Sano, Masayasu Okada, Akiyoshi Kakita, Yukihiko Fujii
We present a pediatric case of a rapidly expanding third ventricle germ cell tumor (GCT). A 14-year-old boy suffered from gradual-onset central diabetes insipidus (DI) and received desmopressin treatment. Magnetic resonance imaging (MRI) showed nonspecific findings of the pituitary-hypothalamic axis. Nine months after the initial DI diagnosis, he developed progressively worsening headache. MRI demonstrated a third ventricle tumor causing noncommunicating hydrocephalus, although an MRI 16 weeks before admission did not show the lesion...
September 26, 2017: Pediatric Neurosurgery
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