Aim: To show that conversion reactions should be suspected when symptomatology or instrumental checking does not conform to a precise pathological pattern in its anatomical and physiological keys.
Methods: We report the case of a 14-y-old girl who presented with signs and symptoms of Guillain-Barré polyradiculonevritis. Negative instrumental and laboratory tests led us to consider a possible diagnosis of conversion reaction.
Results: After a more detailed history emphasizing the close bond between the patient and her father, a poor peer-relation exchange and psychological stress, we were able to identify conversion reactions through the patient's motor signs.
Conclusion: Conversion symptoms must be suspected and searched for when the neurologic outline is difficult to clarify, and also in the case of Guillain-Barré syndrome that does not respond to plasmapheresis.
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http://dx.doi.org/10.1111/j.1651-2227.2003.tb00482.x | DOI Listing |
Front Plant Sci
January 2025
Department of Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea.
Carbonic anhydrases (CAs) are ubiquitous enzymes that catalyze reversibly both the hydration and dehydration reactions of CO and HCO-, respectively. Higher plants contain many different isoforms of CAs that can be classified into α-, β- and γ-type subfamilies. β-type CAs play a key role in the CO-concentrating mechanism, thereby contributing to efficient photosynthesis in the C plants in addition to many other biochemical reactions in plant metabolism.
View Article and Find Full Text PDFJACS Au
January 2025
Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao New Energy Shandong Laboratory, CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
Nitro compounds are key synthetic intermediates used as enabling tools in synthesis and found in a large range of essential compounds, including pharmaceuticals, pesticides, and various organic dyes. Despite recent methodological developments, the industrial preparation of nitro compounds still suffers from harsh reaction conditions, along with poor selectivity and a problematic environmental footprint. Although biological enzymatic methods exist, mild approaches for bionitration are still underexplored.
View Article and Find Full Text PDFJACS Au
January 2025
Interdisciplinary Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
Construction and optimization of stable atomically dispersed metal sites on SiO surfaces are important yet challenging topics. In this work, we developed the amino group-assisted atomic layer deposition strategy to deposit the atomically dispersed Pt on SiO support for the first time, in which the particle size and ratio of Pt entities from single atom (Pt) to atomic cluster (Pt ) and nanoparticle (Pt ) on the SiO surface were well modulated. We demonstrated the importance of dual-site synergy for optimizing the activity of single-atom catalysts.
View Article and Find Full Text PDFFront Chem
January 2025
Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China.
Bisphenol A (BPA) poses a significant environmental threat due to its widespread use as an industrial chemical and its classification as an environmental endocrine disruptor. The urgent need for effective BPA removal has driven research toward innovative solutions. In this study, we present the synthesis and application of a novel 2D-3D spherically hierarchical ZnInS (ZIS) photocatalyst for the photocatalytic degradation of BPA under visible light for the first time.
View Article and Find Full Text PDFFour different materials-pure NiO, pure LSCF (LaSrCoFeO ), 10% Ni/LSCF, and 20% Ni/LSCF-were studied. The Ni/LSCF catalysts demonstrated superior catalytic performance for both NO decomposition and the partial oxidation of methane (POM) compared to pure NiO and pure LSCF. This enhancement is attributed to an increase in oxygen vacancies and improved oxygen mobility within the catalyst, as evidenced by O-TPD analysis.
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