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Walinga M, Jesse S, Alhambra N, Van Buggenhout G. Consensus recommendations on altered sensory functioning in Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104726. [PMID: 36796507 DOI: 10.1016/j.ejmg.2023.104726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
Altered sensory functioning is often observed in individuals with SHANK3 related Phelan-McDermid syndrome (PMS). Compared to typically developing individuals and individuals with an autism spectrum disorder, it has been suggested that there are distinctive features of sensory functioning in PMS. More hyporeactivity symptoms and less hyperreactivity and sensory seeking behaviour are seen, particularly in the auditory domain. Hypersensitivity to touch, possible overheating or turning red easily and reduced pain response are often seen. In this paper the current literature on sensory functioning in PMS is reviewed and recommendations for caregivers, based on consensus within the European PMS consortium, are given.
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Affiliation(s)
- Margreet Walinga
- University of Groningen, University Medical Center Groningen, Dept. Genetics, Groningen, the Netherlands.
| | - Sarah Jesse
- University of Ulm, Department of Neurology, Ulm, Germany
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Scheliga S, Schwank R, Scholle R, Habel U, Kellermann T. A neural mechanism underlying predictive visual motion processing in patients with schizophrenia. Psychiatry Res 2022; 318:114934. [PMID: 36347125 DOI: 10.1016/j.psychres.2022.114934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/22/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
Psychotic symptoms may be traced back to sensory sensitivity. Thereby, visual motion (VM) processing particularly has been suggested to be impaired in schizophrenia (SCZ). In healthy brains, VM underlies predictive processing within hierarchically structured systems. However, less is known about predictive VM processing in SCZ. Therefore, we performed fMRI during a VM paradigm with three conditions of varying predictability, i.e., Predictable-, Random-, and Arbitrary motion. The study sample comprised 17 SCZ patients and 23 healthy controls. We calculated general linear model (GLM) analysis to assess group differences in VM processing across motion conditions. Here, we identified significantly lower activity in right temporoparietal junction (TPJ) for SCZ patients. Therefore, right TPJ was set as seed for connectivity analyses. For patients, across conditions we identified increased connections to higher regions, namely medial prefrontal cortex, or paracingulate gyrus. Healthy subjects activated sensory regions as area V5, or superior parietal lobule. Reduced TPJ activity may reflect both a failure in the bottom-up flow of visual information and a decrease of signal processing as consequence of increased top-down input from frontal areas. In sum, these altered neural patterns provide a framework for future studies focusing on predictive VM processing to identify potential biomarkers of psychosis.
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Affiliation(s)
- Sebastian Scheliga
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty RWTH, Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
| | - Rosalie Schwank
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty RWTH, Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Ruben Scholle
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty RWTH, Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Ute Habel
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty RWTH, Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; JARA-Institute Brain Structure Function Relationship, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Thilo Kellermann
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty RWTH, Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; JARA-Institute Brain Structure Function Relationship, Pauwelsstraße 30, 52074 Aachen, Germany
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Jo HJ, Kim HY, Kang DC, Leem DH, Baek JA, Ko SO. A clinical study of inferior alveolar nerve damage caused by Carnoy's solution used as a complementary therapeutic agent in a cystic lesion. Maxillofac Plast Reconstr Surg 2020; 42:16. [PMID: 32509707 PMCID: PMC7248162 DOI: 10.1186/s40902-020-00257-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/13/2020] [Indexed: 11/30/2022] Open
Abstract
Background Cyst enucleation, which extracts only the tumor with the application of Carnoy’s solution (CS), has been suggested as a conservative treatment with a low recurrence rate and morbidity. However, there has been a concern that CS’s contact with inferior alveolar nerve (IAN) can cause neurons to degenerate and cause sensory dysfunction. The purpose of this retrospective cohort study aimed to investigate the neurosensory function after surgical treatment with or without the application of CS. Methods While controlling the effects of sex, age, follow-up period, and invasion size of the tumor, we performed the binary logistic regression analysis to examine whether or not the sensory function of the patients who were treated with CS (n = 19) for the cyst enucleation procedure was significantly different from those who were not treated with CS (n = 58) at the end of the follow-up period. Results The logistic regression result showed that the use of CS was not significantly related to the normalness of sensory function at the end of the follow-up period. Rather, the invasion size of the cyst was significantly associated with sensory dysfunction. Conclusions CS may be used for patients who are diagnosed with OKC and UAM without much fear of its impact on sensory dysfunction. However, a small number of patients who were treated with CS experienced severe sensory damage and did not recover at the end of the follow-up period, suggesting the need for further analysis of these patients.
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Affiliation(s)
- Hyun-Jun Jo
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University Dental Hospital, 20, Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Republic of Korea
| | - Hee-Youl Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University Dental Hospital, 20, Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Republic of Korea
| | - Dong-Cheol Kang
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University Dental Hospital, 20, Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Republic of Korea
| | - Dae-Ho Leem
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University Dental Hospital, 20, Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Republic of Korea
| | - Jin-A Baek
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University Dental Hospital, 20, Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Republic of Korea
| | - Seung-O Ko
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University Dental Hospital, 20, Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Republic of Korea
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Yang L, Zhao X. Integrated Chinese and Western Medicine for Acute Guillain-barré Syndrome Treatment. Transl Neurosci 2020; 11:38-47. [PMID: 32161685 PMCID: PMC7053400 DOI: 10.1515/tnsci-2020-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 01/31/2020] [Indexed: 11/15/2022] Open
Abstract
Introduction Guillain-Barré syndrome (GBS) is a worldwide demyelinating polyradiculopathy and polyneuropathy. Currently, there is no specific drug for GBS, and established treatment is generally based on immune-modulating treatment with plasma exchange or intravenous immunoglobulin in combination with supportive care. This study aimed to investigate the efficiency of integrated Chinese and Western medicine for acute GBS treatment. Methods We enrolled 73 subjects, and randomly divided them into two groups: 35 cases in the traditional Chinese medicine (TCM) group, and 28 in the Control group. The Control group was treated with the common Western medicine for one month; and the TCM group was administrated with one month of common treatment combined with TCM medication. Results Compared to the controls, TCM significantly enhanced the treatment efficiency in symptom expression, including the TCM syndrome score, the activity of daily living score, Hughes functional score and sensory dysfunction assessment. The total effective rate of the TCM group was 94.29%, significantly better than controls (78.59%). Moreover, TCM provide better improvement in motor nerve conduction functions (distal motor latency and motor conduction velocity) and sensory nerve conduction functions (sensory conduction velocity and sensory nerve action potential) in median nerve, ulnar nerve, and common fibular nerve. Conclusion When combined with TCM administration, the GBS treatment could acquire better outcomes.
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Affiliation(s)
- Liu Yang
- Shanghai Dunlu Biomedical Technology Co., Ltd. Shanghai, China
| | - Xiumin Zhao
- The Second Hospital of Hebei Medical University, Shijiazhuang, China
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Gu JG. Molecular Mechanisms of the Sense of Touch: An Overview of Mechanical Transduction and Transmission in Merkel Discs of Whisker Hair Follicles and Some Clinical Perspectives. Adv Exp Med Biol 2019; 1099:1-12. [PMID: 30306510 DOI: 10.1007/978-981-13-1756-9_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The Merkel disc is a main type of tactile end organs for sensing gentle touch and is essential for sophisticated sensory tasks including social interaction, environmental exploration, and tactile discrimination. Recent studies have shown that Merkel cells are primary sites of mechanotransduction using Piezo2 channels as a molecular transducer in Merkel discs. Furthermore, tactile stimuli trigger serotonin release from Merkel cells to excite their associated whisker Aβ-afferent endings and transmit tactile signals. The tactile transduction and transmission at Merkel discs may have important clinical implications in sensory dysfunctions such as the loss of tactile sensitivity and tactile allodynia seen in patients who have diabetes and inflammatory diseases and undergo chemotherapy.
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Affiliation(s)
- Jianguo G Gu
- Department of Anesthesiology and Perioperative Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Neupane S, Jung HG, Sohn WJ, Yamamoto H, Kim JY, Byun JS, Lee Y, Bae YC, Choi JK, Kim JY, Jung JK. Focal localization of inflammatory cytokines and neurotrophins in a tongue chronic injury model. Arch Oral Biol 2018; 99:22-30. [PMID: 30590230 DOI: 10.1016/j.archoralbio.2018.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/11/2018] [Accepted: 12/18/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Chronic injury in tongue causes the variety of reactions in the oral cavity, frequently leading to its functional and structural disintegrity including inflammation and sensory dysfunction, but its detailed profiles were not elucidated yet. One of the chronically injured tongue such as tongue piercing, as a pathological aspect, is currently popular among younger people but may be associated with severe side effects, leading to pathophysiological complications. However, the pathophysiological aspects and related cellular and molecular mechanisms underlying tongue injury are not clearly understood. DESIGN In this study, we designed an experimental model system using C57BL/6 male mice that mimics a chronically injured situation by penetrating the middle part of tongue with silk suture. After 5 and 10 days mice were sacrificed and tongues were collected and processed for histological evaluation and immunohistochemistry. RESULTS We found that the anterior tongue showed localization of neuro-inflammatory signaling molecules such as myeloperoxidase (MPO), matrix metalloproteinase 2 (MMP2), tumor necrosis factor-α (TNF-α), nerve growth factor, and transient receptor potential cation channel subfamily V member 1 (TRPV1) without any apparent inflammation in temporal manner. In addition, the signal for AM1-43, an activity-dependent nerve terminal probe, decreased within the fungiform papillae on the anterior tongue after injury. CONCLUSIONS These results implied that the distinct localizations of inflammatory cytokines and neurotrophin would contribute altered sensory function in anterior tongue following the chronic injury. Our study indicates the possible pathophysiologic mechanism underlying neuro-inflammation following chronically injury of tongue. In addition, it could be cautiously postulated that mechanical injury should be avoided to prevent chronic pain disorders from being triggered.
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Affiliation(s)
- Sanjiv Neupane
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Hyun-Guek Jung
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Wern-Joo Sohn
- Pre-Major of Cosmetics and Pharmaceutics, Daegu Haany University, Gyeongsan, Republic of Korea
| | - Hitoshi Yamamoto
- Department of Histology and Developmental Biology, Tokyo Dental College, Tokyo, Japan
| | - Ji-Youn Kim
- Department of Dental Hygiene, College of Health Science, Gachon University, Incheon, Republic of Korea
| | - Jin-Seok Byun
- Department of Oral Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Yong Chul Bae
- Department of Oral Anatomy and Neurobiology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Kap Choi
- Department of Oral Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Young Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea.
| | - Jae-Kwang Jung
- Department of Oral Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea.
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Olateju OI, Ihunwo AO, Manger PR. Changes to the somatosensory barrel cortex in C57BL/6J mice at early adulthood (56 days post-natal) following prenatal alcohol exposure. J Chem Neuroanat 2018; 96:49-56. [PMID: 30572114 DOI: 10.1016/j.jchemneu.2018.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 12/14/2018] [Accepted: 12/15/2018] [Indexed: 11/29/2022]
Abstract
Children with Fetal Alcohol Spectrum Disorder (FASD) have impaired sensory processing skills as a result of neurodevelopmental anomalies. The somatosensory barrel field of rodent brain is a readily accessible model for studying the effects of alcohol exposure. Within the barrel field, the posterior medial barrel subfield (PMBSF) receives sensory inputs from the large vibrissae on the contralateral face. This study reports on the consequence of prenatal exposure to alcohol on the somatosensory cortices of mice later in life. Two control groups, a sucrose and a non-treated control, were also examined. At postnatal day (PND) 56 the cerebral hemisphere of mice from each group were processed for cytochrome oxidase reactivity. In contrast to previous studies, there were no significant differences in the mean areas of: (I) the PMBSF enclosure, (II) the PMBSF barrels, (III) the individual PMBSF barrels and (IV) the septal portion of the PMBSF in the alcohol group compared to the controls. However barrel sizes in rows D and E in the alcohol group were significantly reduced, indicating an alcohol-induced damage on the barrel development and which may reduce the amount of the cortex devoted to processing somatosensory input- a common defect seen in children with FASD.
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Affiliation(s)
- Oladiran I Olateju
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, Johannesburg, South Africa.
| | - Amadi O Ihunwo
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, Johannesburg, South Africa
| | - Paul R Manger
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, Johannesburg, South Africa
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Guilford BL, Ryals JM, Lezi E, Swerdlow RH, Wright DE. Dorsal Root Ganglia Mitochondrial Biochemical Changes in Non-diabetic and Streptozotocin-Induced Diabetic Mice Fed with a Standard or High-Fat Diet. ACTA ACUST UNITED AC 2017; 8. [PMID: 28775932 DOI: 10.21767/2171-6625.1000180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Mitochondrial dysfunction is purported as a contributory mechanism underlying diabetic neuropathy, but a defined role for damaged mitochondria in diabetic nerves remains unclear, particularly in standard diabetes models. Experiments here used a high-fat diet in attempt to exacerbate the severity of diabetes and expedite the time-course in which mitochondrial dysfunction may occur. We hypothesized a high-fat diet in addition to diabetes would increase stress on sensory neurons and worsen mitochondrial dysfunction. METHODS Oxidative phosphorylation proteins and proteins associated with mitochondrial function were quantified in lumbar dorsal root ganglia. Comparisons were made between non-diabetic and streptozotocin-induced (STZ) C57Bl/6 mice fed a standard or high-fat diet for 8 weeks. RESULTS Complex III subunit Core-2 and voltage dependent anion channel were increased (by 36% and 28% respectively, p<0.05) in diabetic mice compared to nondiabetic mice fed the standard diet. There were no differences among groups in UCP2, PGC-1α, PGC-1β levels or Akt, mTor, or AMPK activation. These data suggest compensatory mitochondrial biogenesis occurs to offset potential mitochondrial dysfunction after 8 weeks of STZ-induced diabetes, but a high-fat diet does not alter these parameters. CONCLUSION Our results indicate mitochondrial protein changes early in STZ-induced diabetes. Interestingly, a high-fat diet does not appear to affect mitochondrial proteins in either nondiabetic or STZ- diabetic mice.
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Affiliation(s)
- B L Guilford
- Department of Applied Health, Southern Illinois University, Edwardsville, Illinois, USA
| | - J M Ryals
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - E Lezi
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - R H Swerdlow
- Department of Molecular and Integrative Physiology and Neurology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - D E Wright
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
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