The bone morphogenetic proteins (BMPs) are a family of the transforming growth factor-beta (TGF-beta) superfamily that perform multiple roles during vertebrate and invertebrate development. Here, we report the molecular cloning of a novel BMP from regenerating arms of the ophiuroid Amphiura filiformis. The theoretically translated amino acid sequence of this novel BMP has high similarity to that of the sea urchin BMP univin. This novel BMP has been named afuni. Whole-mount in situ hybridisation implicates afuni in arm regeneration. Expression occurs in distinct proximal and distal regions of late regenerates (3- and 5-week postablation). These sites are at different stages of regeneration, suggesting multiple roles for this gene in adult arm development. Cellular expression of this gene occurs in migratory cells within the radial water canal (RWC) of regenerating and nonregenerating arms. These migrating coelomocytes suggest a key role for the coelomic RWC as a source of the cellular material for use in arm regeneration by A. filiformis.
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http://dx.doi.org/10.1007/s00427-005-0487-8 | DOI Listing |
Nat Commun
January 2025
Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, IL, USA.
Prehensile arms are among the most remarkable features of the octopus, but little is known about the neural circuitry controlling arm movements. Here, we report on the cellular and molecular organization of the arm nervous system, focusing on its massive axial nerve cords (ANCs). We found that the ANC is segmented.
View Article and Find Full Text PDFJ Craniofac Surg
January 2025
Scar and Wound Treatment Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.
Background: Compared with direct linear resection, the triangular flap insertion method is a correction method that purportedly reduces the incision tension of dog ears deformity. Randomized clinical trials comparing these 2 methods seem to be limited or absent.
Objective: A randomized study was planned to compare the cosmetic effect and scar in the defect area between the triangular flap insertion method and direct linear resection in the repair of dog ear deformities after the suture of the facial circular defect.
J Orthop Surg Res
January 2025
Department of Orthopaedics, the 960th Hospital of PLA, 25 shifan Road, Tianqiao District, Jinan, Shandong, 250031, China.
Background: One of the common complications in spinal surgery patients is deep surgical site infections (SSIs). Deep SSIs refer to infections that involve the deeper soft tissues of the incision, such as the fascia and muscle layers. This complication can lead to prolonged hospitalization, repeated surgeries, and even life-threatening conditions.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
December 2024
Department of Thoracic and Cardiovascular Surgery, Osaka Medical and Pharmaceutical University, Osaka, Japan.
Background: We have developed a new hybrid warp-knit fabric for induction of in situ tissue regeneration that has shown appropriate antideterioration properties and expandability in preclinical studies. This study was performed to assess the clinical efficacy and safety of this fabric in the early postoperative period after congenital cardiac surgery.
Methods: The fabric comprises biodegradable (complete degradation period, 2-3 years) and nonbiodegradable yarns coated with cross-linked gelatin.
Medicina (Kaunas)
November 2024
Department of Replantation and Reconstruction, Centre of Postgraduate Medical Education, Professor A. Gruca Teaching Hospital, Konarskiego 13, 05-400 Otwock, Poland.
Successful treatment of severe trauma and fractures of the long bones with successful healing and bone union is still a significant challenge for surgeons. Unfortunately, up to 10% of long-bone fractures develop bone healing disorders. The aim of this study was to evaluate the results of treating bone defects with different etiologies in the upper and lower extremities using the induced membrane technique.
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