Prophylactic use of vancomycin powder on postoperative infection after total joint arthroplasty.

OBJECTIVE: By reviewing the literature analyzing vancomycin powder for preventive surgery, the effect of this method on reducing the infection rate after TJA was systematically evaluated to provide a basis for future clinical work. METHODS: Using PubMed, Medline, Elsevier, and CNKI, with the following mesh words: "vancomycin", "local / intraoperative / topical / intrawound", "TJA", "TKA", "THA", "total joint arthroplasty", "total knee arthroplasty", "total hip arthroplasty", "infection", and "SSI", to search for case-control research papers on the impact of prophylactic application of vancomycin powder on the incidence of postoperative infection, we compared the overall infection rate in the literature by using RevMan 5.3 meta-analysis software and analyzed the impact of vancomycin on the infection rate of different parts and types of TJA according to different subgroups. RESULTS: A total of 22 qualified studies were selected; twenty-five studies compared the effect of prophylactic use of vancomycin powder on infection rates after TJA. There were 23,363 cases in total, including 9545 cases in the vancomycin group and 13,818 cases in the control group. The results of the meta-analysis showed that the possibility of postoperative infection after prophylactic use of vancomycin powder was significantly lower than that without vancomycin risk ratio: 0.38 [0.23,0.59], P < 0.01). However, a meta-analysis of randomized controlled trials (RCTs) showed no significant effect of vancomycin on postoperative infection (P = 0.52). CONCLUSION: Based on the retrospective studies, local prophylactic use of vancomycin powder in TJA can significantly reduce the incidence of postoperative infection. High-quality RCTs should be carried out to further evaluate these results.

[Local application of recombinant activated factor VII for massive surgical bleeding]. / Lokal'noe primenenie rekombinantnogo aktivirovannogo faktora svertyvaniya krovi VII dlya ostanovki massivnogo operatsionnogo krovotecheniya.

The authors report resection of anaplastic convexital meningioma in a middle-aged woman complicated by expected massive blood loss. The most intense bleeding occurred at the final stage of resection and it was impossible to stop it with traditional approaches. The surgeon pressed a standard tachocomb plate moistened with a diluted solution of recombinant activated factor VII (coagil, Russia) to the most bleeding area for 5 minutes. Subsequently, surgeon replaced finger pressure with a permanent napkin. Hemostatic effect of recombinant activated factor VII following its systemic administration is well known and convincingly proven in many surgical areas including neurosurgery. However, we do not know any descriptions of its local application in neurosurgical patients.

Native and exotic plants with edible fleshy fruits utilized in Patagonia and their role as sources of local functional foods.

BACKGROUND: Traditionally part of the human diet, plants with edible fleshy fruits (PEFF) contain bioactive components that may exert physiological effects beyond nutrition, promoting human health and well-being. Focusing on their food-medicine functionality, different ways of using PEFF were studied in a cross-sectional way using two approaches: a bibliographical survey and an ethnobotanical case study in a rural community of Patagonia, Argentina. METHODS: A total of 42 studies were selected for the bibliographical review. The case study was carried out with 80% of the families inhabiting the rural community of Cuyín Manzano, using free listing, interviews, and participant observation. In both cases we analyzed species richness and use patterns through the edible consensus and functional consensus indices. Local foods, ailments, medicines and drug plants were also registered. RESULTS: The review identified 73 PEFF, the majority of which (78%) were native species, some with the highest use consensus. PEFF were used in 162 different local foods, but mainly as fresh fruit. Of the total, 42% were used in a functional way, in 54 different medicines. The principal functional native species identified in the review were Aristotelia chilensis and Berberis microphylla. In the case study 20 PEFF were in current use (50% were native), and consensus values were similar for native and exotic species. These were used in 44 different local foods, mainly as fresh fruit. Only 30% were recognized for their functional value by inhabitants (mainly as gastrointestinal and respiratory treatments). The species with the highest functional consensus were the exotic Sambucus nigra and Rosa rubiginosa, followed by the native A. chilensis, Ribes magellanicum and B. microphylla. Infusions also constituted important local functional foods. CONCLUSIONS: This survey highlights the importance of studying the different local functional foods to depict the biocultural diversity of a human society. The preparation of different beverages and herbal medicines was relevant, and would be a promising subject to investigate in the future. The living heritage of PEFF appears to have undergone hybridization processes, such that exotic species play an increasingly significant role.

Green Tea Catechin (-)-Epigallocatechin-3-Gallate (EGCG) Facilitates Fracture Healing.

Green tea drinking can ameliorate postmenopausal osteoporosis by increasing the bone mineral density. (-)-Epigallocatechin-3-gallate (EGCG), the abundant and active compound of tea catechin, was proven to be able to reduce bone loss and ameliorate microarchitecture in female ovariectomized rats. EGCG can also enhance the osteogenic differentiation of murine bone marrow mesenchymal stem cells and inhibit the osteoclastogenesis in RAW264.7 cells by modulation of the receptor activator of nuclear factor-kB (RANK)/RANK ligand (RANKL)/osteoprotegrin (OPG) (RANK/RANKL/OPG) pathway. Our previous study also found that EGCG can promote bone defect healing in the distal femur partially via bone morphogenetic protein-2 (BMP-2). Considering the osteoinduction property of BMP-2, we hypothesized that EGCG could accelerate the bone healing process with an increased expression of BMP-2. In this manuscript, we studied whether the local use of EGCG can facilitate tibial fracture healing. Fifty-six 4-month-old rats were randomly assigned to two groups after being weight-matched: a control group with vehicle treatment (Ctrl) and a study group with 10 µmol/L, 40 µL, EGCG treatment (EGCG). Two days after the operation, the rats were treated daily with EGCG or vehicle by percutaneous local injection for 2 weeks. The application of EGCG enhanced callus formation by increasing the bone volume and subsequently improved the mechanical properties of the tibial bone, including the maximal load, break load, stiffness, and Young's modulus. The results of the histology and BMP-2 immunohistochemistry staining showed that EGCG treatment accelerated the bone matrix formation and produced a stronger expression of BMP-2. Taken together, this study for the first time demonstrated that local treatment of EGCG can accelerate the fracture healing process at least partly via BMP-2.

Plantas empleadas para tratar afecciones respiratorias introducidas por inmigrantes bolivianos y chinos en el Área Metropolitana de Buenos Aires, Argentina / Plants used to treat respiratory diseases introduced by Bolivian and Chinese immigrants in the Metropolitan Area of Buenos Aires, Argentina

This contribution includes the registry of 28 species of medicinal plants and their derived products used to treat respiratory diseases in the Metropolitan Area of Buenos Aires, Argentina, introduced by Bolivian and Chinese immigrants. Information on these species (their assigned local uses) was obtained from interviews with local informants and from other sources, such as labels, brochures and catalogs, print and electronic. A bibliographic review was carried out on the biological activity and effects studied in order to evaluate its correspondence with the assigned local uses. The degree of visibility of the treated species was analyzed, according to their circulation in the restricted commercial circuits (Chinese and Bolivian immigrants) and the general commercial circuit. Of the total, 17 species belong to the segment of Chinese immigrants, and the remaining 11 to the Bolivian segment. The most frequently reported respiratory conditions are: "asthma", "cough", "bronchitis", "respiratory tract infections", "lung ailments". The immigrant segments play a fundamental role in the conservation of biocultural diversity in the study area.

Esta contribución incluye el registro de 28 especies de plantas medicinales y sus productos derivados empleados para tratar afecciones respiratorias en el Área Metropolitana de Buenos Aires, Argentina, introducidas por inmigrantes bolivianos y chinos. La información sobre esas especies (sus usos locales asignados) se obtuvo de entrevistas realizadas a informantes locales y de otras fuentes, como la de etiquetas, prospectos y catálogos, impresos y electrónicos. Se realizó una revisión bibliográfica sobre la actividad biológica y efectos estudiados a fin de evaluar su correspondencia con los usos locales asignados. Se analizó el grado de visibilidad de las especies tratadas, según su circulación en los circuitos comerciales restringidos (inmigrantes chinos y bolivianos) y el circuito comercial general. Del total, 17 especies pertenecen al segmento de inmigrantes chinos, y los 11 restantes al segmento boliviano. Las afecciones respiratorias más frecuentemente relevadas son: "asma", "tos", "bronquitis", "infecciones en las vías respiratorias", "dolencias pulmonares". Los segmentos de inmigrantes poseen un rol fundamental en la conservación de la diversidad biocultural en el área de estudio.