We examined the molecular progression of ectopic bone development upon application of recombinant human bone morphogenetic protein-2 (rhBMP2), using a commercial collagen type I carrier, in the hind quarter muscles of mice. We performed a gene expression study using mRNA in situ hybridisation to compare embryonic cartilage and bone formation with BMP2-induced ectopic bone formation. As bone growth can be induced postnatally or in adult animals, we examined the expression of molecules regulating embryonic bone development. We found that the mRNAs of the same molecules, such as Indian hedgehog (IHH), parathyroid hormone (PTH)/PTH-related peptide receptor (PPR) and BMPs, that regulate embryonic cartilage and bone development, are expressed during BMP-induced ectopic bone formation, suggesting parallels in the mechanisms controlling these processes. Our studies support by molecular means the previous findings in rats that BMP2-induced ectopic bone formation in mice undergoes bone development involving both modes, endochondral and intramembranous ossification, simultaneously at different sites of the implant.
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http://dx.doi.org/10.1080/0897719021000069579 | DOI Listing |
Cureus
November 2024
Otolaryngology-Head and Neck Surgery, Freeman Health System, Joplin, USA.
Osseous choristomas, characterized by ectopic bone, are rare and typically found in the head and neck, particularly on the tongue. This report describes a unique case of an osseous choristoma in a 63-year-old male with an unusual posterior tongue location. An incidental base of tongue (BOT) mass was discovered during a bronchoscopy for lung biopsy.
View Article and Find Full Text PDFJ Ethnopharmacol
December 2024
Guangzhou University of Chinese Medicine, 510006 Guangzhou, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine) 510120 Guangzhou, China; Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research Guangzhou University of Chinese Medicine, 510120 Guangzhou, China. Electronic address:
Ethnopharmacological Relevance: Ankylosing spondylitis (AS) is a chronic rheumatic immune disease characterized by high disability rates, significantly affecting patients' quality of life. BuShen-QiangDu-ZhiLv Decoction (BQZD), developed by the renowned traditional Chinese medicine practitioner Jiao Shude, has been traditionally used for AS treatment. However, the bioactive components and the precise mechanisms underlying BQZD's therapeutic effects remain largely unexplored.
View Article and Find Full Text PDFFront Surg
December 2024
Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China.
One of the primary challenges in hand microsurgical reconstruction lies in addressing severe hand injuries, particularly those involving multiple finger amputations, as autologous replantation might not fully restore hand functionality. In such scenarios, fully shaped reconstruction of a severed finger combined with Ectopic banking could yield superior reconstructive outcomes and enhance the amputated limb's function. This case report presents a unique approach that combines ectopic replantation of an amputated finger with interphalangeal reconstruction methods to restore both the form and function of the hand.
View Article and Find Full Text PDFBMC Oral Health
December 2024
Nepalese Army Institute of Health Sciences, College of Medicine, Kathmandu, Nepal.
Background: Supernumerary teeth, defined as extra teeth beyond the normal series of dentition, can appear anywhere in the dental arch. They may present as solitary or multiple, unilateral or bilateral, and can be either erupted or impacted. Rarely, supernumerary teeth are found in ectopic locations outside the dental arches, such as the nasal cavity, inferior nasal conchae, maxillary sinus, ethmoid sinus, or skull.
View Article and Find Full Text PDFJ Endocrinol Invest
December 2024
Department of Pharmacological and Biomolecular Sciences, Università Degli Studi Di Milano, 20133, Milan, Italy.
Background: Obesity, bone-related and cardiovascular diseases (CVD) are among the leading global health concerns. Growing evidence suggests that these conditions share common pathophysiological pathways and disease outcomes. PATHOGENETIC INTERACTIONS OF OBESITY, CVD AND BONE-RELATED DISEASES: Obesity is a well-established risk factor for atherosclerotic CVD (ASCVD), as dysfunctional ectopic adipose tissue may produce endocrine/paracrine hormones modulating metabolic processes and inflammation, predisposing to ASCVD.
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