DreamPharm Products:
Eur J Surg. 2000 Oct;166(10):818-22.
Sucrose has no beneficial effects on wound healing in rats.
Kossi JA, Ekfors TO, Aaltonen V, Laato M.
Department of Surgery, University of Turku, Finland.
OBJECTIVE: To evaluate the effects of sucrose treatment on the formation of granulation tissue in a standard wound model. DESIGN: Animal study. SETTING: University hospital, Finland. ANIMALS: 32 male Sprague-Dawley rats divided into 4 groups. INTERVENTIONS: Implantation of viscose cellulose sponge subcutaneously, and daily injection of three concentrations of sucrose (0.01, 0.1 or 1 M) or vehicle for 7 days. MAIN OUTCOME MEASURES: The amount of granulation tissue measured by chemical analysis and histology. The amount and distribution of types I and III collagen assayed by immunofluorescence. RESULTS: None of the three concentrations altered the amounts of DNA, RNA, hydroxyproline, nitrogen, hexosamines, and uronic acids in granulation tissue. Neither improvement nor deterioration was seen in the growth of granulation tissue in histological specimens. The amount and distribution of types I and III collagen was similar in controls and sucrose-treated rats. Type III collagen was most abundant near newly-formed vessels. Neither sucrose nor fructose was found in wound fluid while the concentration of glucose was significantly lower in all test groups than in controls. CONCLUSIONS: Sucrose solution had neither beneficial nor deleterious effects on the amount of developing granulation tissue in an experimental wound model. The amount and distribution of types I and III collagens were also not altered by sucrose treatment.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11071171&dopt=Abstract
J Immunoassay. 2000 Nov;21(4):297-314.
Determination of optimal conditions for the immobilization of cells in a cell capture enzyme immunoassay (CC-EIA) by a simple Geimsa assay.
Kobayashi M, Sano K, Katsumura K, Tanaka K, Sugiyama T, Doi M, Abe M, Ikeda T.
Department of Ophthalmology, Osaka Medical College, Takatsuki-shi, Japan.
To determine the optimal conditions for the immobilization of cells in a cell capture enzyme immunoassay (CC-EIA), the most suitable diluent, and the optimal pH, temperature and period of incubation were examined using WI-38, a human embryonic lung fibroblast cell line. For the evaluation, we devised a simple Giemsa assay method, in which immobilized cells on a microplate were stained with Giemsa solution, the stained dye was eluted with ethanol after washing the plate, and the optimal density (O.D.) was measured at wavelength 620 nm. The optimal conditions for the immobilization were determined to be treatment with 5% formalin in phosphate-buffered saline (PBS) (pH 7.2) for 15 minutes at room temperature, which were confirmed to be suitable for the measurement of cell associated collagen by CC-EIA. Additionally, we found that the simple Giemsa staining method was also useful for evaluating the number of immobilized cells on the microplate after CC-EIA.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11071249&dopt=Abstract
Biomaterials. 2000 Dec;21(24):2561-74.
Evaluation of multiphase implants for repair of focal osteochondral defects in goats.
Niederauer GG, Slivka MA, Leatherbury NC, Korvick DL, Harroff HH, Ehler WC, Dunn CJ, Kieswetter K.
OsteoBiologics, Inc., San Antonio, TX 78249-3308, USA. gabbi.com
The use of biodegradable scaffolds for articular cartilage repair has been investigated by numerous researchers. The objective of this screening study was to examine how the mechanical and physical properties of four multiphase implants can affect the cartilage healing response. Multiphase implant prototypes were prepared using poly(D,L)lactide-co-glycolide as the base material. PGA fibers (FR), 45S5 Bioglass (BG) and medical grade calcium sulfate (MGCS) were used as additives to vary stiffness and chemical properties. Osteochondral defects (3 mm dia. and 4 mm in depth) were created bilaterally in the medial femoral condyle (high-weight bearing) and the distal medial portion of the patellar groove (low-weight bearing) of 16 Spanish goats. Half of the implants were loaded with autologous costochondral chondrocytes. Defect sites (total n = 64, 4 sites/treatment) were randomly treated and allowed to heal for 16 weeks, fully weight bearing. At euthanasia, gross evaluations and biomechanical testing were conducted. Histological sections of the defect sites were stained with H and E, Safranin O/Fast Green or processed to analyze collagen architecture. Sections were semi-quantitatively scored for repair tissue structure. Qualitative evaluations showed that all groups had a high percentage of hyaline cartilage and good bony restoration, with new tissue integrating well with the native cartilage. Gross and histology scoring indicated a significantly higher score for defect healing in the condyle than in the patellar groove, but no difference in healing for implant types or addition/omission of cells was found. This investigation demonstrates that focal, osteochondral defects in caprine distal femurs treated with various implant constructs were repaired with hyaline-like cartilage and good underlying bone. The multiphase implants show potential for treatment of osteochondral defects and long-term studies need to be undertaken to confirm the longevity of the regenerated tissue.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11071606&dopt=Abstract
Dev Biol. 2000 Nov 15;227(2):558-66.
VEGF spatially directs angiogenesis during metanephric development in vitro.
Tufro A.
Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, Virginia 22908-0386, USA.
Vascular endothelial growth factor (VEGF) is required for endothelial cell differentiation, vasculogenesis, and normal glomerular vascularization. To examine whether VEGF plays a role as a chemoattractant for the developing kidney vasculature, avascular metanephric kidneys from rat embryos (E14) were cocultured with endothelial cells. To determine whether VEGF directly provides chemoattractive guidance for migration, we examined migration of endothelial cells toward VEGF-coated beads. Mouse glomerular endothelial cells expressing beta-galactosidase (MGEC) were isolated from Flk-1(+/-) heterozygous mice and passaged 4-12 times. Upon 24 h culture on collagen I gels MGEC formed a lattice or capillary-like network. Embryonic metanephroi were cocultured with MGEC on collagen I gels for 1-6 days in defined media, stained for beta-galactosidase, and examined by light microscopy. Metanephric organs induced a rearrangement of the endothelial cell lattice and attracted MGEC. MGEC invaded the metanephric organs forming capillary-like structures within and surrounding the forming nephrons. This process was accelerated and amplified by low oxygen (3% O(2)) and was prevented by anti-VEGF neutralizing antibodies. MGECs migrated toward VEGF-coated beads, whereas PBS-coated beads did not alter MGEC networks. We conclude that VEGF produced by the differentiating nephrons acts as a chemoattractant providing spatial direction to developing capillaries toward forming nephrons during metanephric development in vitro. 2000 Academic Press.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11071774&dopt=Abstract
Dev Biol. 2000 Nov 15;227(2):606-17.
Degradation of type IV collagen by matrix metalloproteinases is an important step in the epithelial-mesenchymal transformation of the endocardial cushions.
Song W, Jackson K, McGuire PG.
Department of Cell Biology and Physiology, University of New Mexico School of Medicine, Albuquerque, New Mexico 87131, USA.
Morphogenesis of some tissues and organs in the developing embryo requires the transformation of epithelial cells into mesenchyme followed by cell motility and invasion of surrounding connective tissues. Details of the mechanisms involved in this important process are beginning to be elucidated. The epithelial-mesenchymal transformation (EMT) process involves many steps, one of which is the upregulation and activation of specific extracellular proteinases including members of the matrix metalloproteinase (MMP) family. Here we analyze the role of MMPs in the initiation of the mesenchymal cell phenotype in the developing heart, and find that they are necessary for the invasion of mesenchymal cells into the extracellular matrix of the endocardial cushion tissues. An important requirement in the formation of this mesenchyme is the turnover of type IV collagen along the basal surface of endocardial cells. In vitro experiments suggest that type IV collagen does not provide a suitable migratory substrate for endocardial cushion cells unless MMP-2 and MT-MMP are active. Relevant MMPs were found to be upregulated by factors known to be involved in the induction of the EMT such as TGFbeta3. These results provide evidence of an important role for MMPs during a specific stage of the epithelial mesenchymal transformation in the embryonic heart, and suggest that specific cell-matrix interactions which facilitate cell migration only occur when the composition of the surrounding extracellular matrix is proteolytically altered. 2000 Academic Press.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11071778&dopt=Abstract
baldness is a problem in many ways.
Baldness is indeed becoming an increasing concern in the current aging society.
It changes personal appearance and identity in social context.
herbs and herbal formula
and promotes hair growth.
Numerous personal experiences and anecdotal cases testify that the herbal formula based on the Chinese
herbs improves the situation of the age-related hair thinning and hair loss for a large fraction of people
taking it regularly. It is unknown how Hair Million herbs stop hair loss, and promote hair growth due to
the lack of scientific research and placebo controlled clinical trials.
For clinically validated prescription medication, check Buy Propecia Online.
Buy Lipitor OnlineBuy Tramadol Online
Natural Herbal Supplements||
Constipation relief, laxative, colon cleansing ||
Best Realtor in Glendale, California: Residential Home and Commercial Property ||
Related Web pages ||
Buy Viagra Online ||
Herbs and Pharmaceuticals Online ||