Relationship between suint and the sweat glands

1963 ◽  
Vol 14 (3) ◽  
pp. 340 ◽  
Author(s):  
BD Stacy ◽  
AH Brook ◽  
BF Short

In the fleece of sheep with different types of skin, suint (cold water extract of the greasy fleece) was shown to be associated with the presence and size of the sweat glands. In the absence of sweat glands, suint was produced in substantially less than normal quantities, whereas the amount was much greater where the sweat glands were large.Similarly, the amount of potassium in suint, in skin, and in fluid from dermal cysts was much larger in the presence of sweat glands. The conclusion that suint is therefore largely produced by sweat glands was substantiated by the detection of high concentrations of potassium in sheep sweat.

2017 ◽  
Vol 27 (4) ◽  
Author(s):  
Buthaina Abdul-Hamza H. ALzubedy ◽  
Shaymaa O. M. ALhamdany ◽  
Raghad K. M. ALkazaly ◽  
Masya A. A. ALzubedy ◽  
Zenia AbdulKareem ◽  
...  

This study was compared the antimicrobial effectiveness of Lawsonia inermis plant extract (alcoholic, aqueous and silver nanoparticles) on the growth of different types of Gve+ bacteria and Gve- bacteria at concentration 80 mg /L. It was noted that the ( alcoholic, hot and cold water) extract have highest impact recorded in the growth of bacteria S.aurous with inhibition zone (26mm) followed by the bacteria P.aueroginosa at inhibition zone reached (22mm) and finally the yeast C. albicans at inhibition zone reached (17mm), while silver nano-particles of the plant extract the most influence on the bacteria, it gave the highest Inhibition area reached (30mm) on the growth of the S. aurous, followed by the inhibition area of P.aueroginosa reached (26mm) then Strep. pyogein (25mm), and finally the yeast C. albicans reached (18 mm). With regard to the complex (alcoholic extract and antibiotic Amoxylein) its effects has varied upon microorganisms, there is a synergistic effect on the growth of the yeast C. albicans at inhibition zone (30mm) while it has been observed inhibitory effect of this complex on the growth of p. aeroginosa with inhibition zone amounted to (15mm), but did not show any significant impact on the growth of both bacteria (K. pneumonia, E.coli Strep. Pyogein& P. aeroginosa,), while the (alcoholic extract and antibiotic Erythromycin) showed inhibitory and synergistically effect on each of the bacteria (E.coli, S. aurous, yeast C. albicans and P. aeroginosa) respectively. According to obtained results the antibiotic Erythromycin shows higher inhibitory effect than antibiotic Amoxylein. It has also been investigated the lower values of absorbance at the wavelength of 260 nm with increasing the concentration of crude alcoholic extract, this reveled the ability of henna extract in the removal of free radicals liberated from photolysis of hydrogen peroxide compound .


2020 ◽  
Vol 11 (1) ◽  
pp. 67
Author(s):  
Ján Iždinský ◽  
Ladislav Reinprecht ◽  
Ján Sedliačik ◽  
Jozef Kúdela ◽  
Viera Kučerová

The bonding of wood with assembly adhesives is crucial for manufacturing wood composites, such as solid wood panels, glulam, furniture parts, and sport and musical instruments. This work investigates 13 hardwoods—bangkirai, beech, black locust, bubinga, ipé, iroko, maçaranduba, meranti, oak, palisander, sapelli, wengé and zebrano—and analyzes the impact of their selected structural and physical characteristics (e.g., the density, cold water extract, pH value, roughness, and wettability) on the adhesion strength with the polyvinyl acetate (PVAc) adhesive Multibond SK8. The adhesion strength of the bonded hardwoods, determined by the standard EN 205, ranged in the dry state from 9.5 MPa to 17.2 MPa, from 0.6 MPa to 2.6 MPa in the wet state, and from 8.5 MPa to 19.2 MPa in the reconditioned state. The adhesion strength in the dry state of the bonded hardwoods was not influenced by their cold water extracts, pH values, or roughness parallel with the grain. On the contrary, the adhesion strength was significantly with positive tendency influenced by their higher densities, lower roughness parameters perpendicular to the grain, and lower water contact angles.


Author(s):  
Raja Nurul Ashiqin Raja Arifin ◽  
Juliana Jumal

Exposed to the pollution has led to generation of reactive oxygen species (ROS) in human skin. ROS generated cause many skin diseases such as skin-aging, inflammation, melanogenesis and skin cancer. ROS is a family of oxygen-based free radicals that contains or capable of producing an unpaired electron. Antioxidant is a molecule that can inhibit the reaction of free radical from ROS by donating its electron. Averrhoa bilimbi Linn. (AVBL) is one of the potent natural antioxidant belongs to the group of Oxalidaceae which can be widely found in Asia including Malaysia. Traditionally, this plant has been used to treat many diseases such as cough, itchiness, pimple, fever and inflammation. As a result, much attention has been directed towards the studies regarding the potential of this plant in treating disease. The present study was undertaken to assess the antioxidant activity of AVBL leaves extract. The AVBL leaves were extracted using sonicator with ethanol and distilled water as two different types of solvent. The total phenolic content (TPC) and flavonoid content (TFC) of this study were determined by using Folin-Ciocalteu reagent and aluminium chloride colometric assay. Antioxidant activity of the plant extract was tested using 2,2- diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing power (FRAP). From the analyses, water extract of AVBL possessed greater extraction yield (11.231%) as compared to ethanolic extract (5.358 %). However, ethanolic extract of AVBL leaves revealed higher result of TPC (126.4±0.35 mg/g gallic acid equivalent), TFC (32.80±0.37 mg/g quercetin equivalent), DPPH (0.0019±0.0003) and FRAP (41.81±0.45 mg/g gallic acid equivalent). The results of TPC and TFC have strongly positive correlation with antioxidant capacity (r = 1). Thus, it can be concluded that this plant is a potent source of natural antioxidant.


2010 ◽  
Vol 7 (3) ◽  
pp. 1159-1165
Author(s):  
Baghdad Science Journal

The antimicrobial activity of ginger extracts ( cold-water, hot-water, ethanolic and essential oil ) against some of pathogenic bacteria ( Escherichia coli , Salmonella sp , Klebsiella sp , Serratia marcescens, Vibrio cholerae , Staphylococcus aureus , Streptococcus sp) was investigated using Disc diffusion method , and the results were compared with the antimicrobial activity of 12 antibiotics on the same bacteria . The results showed that the ginger extracts were more effective on gram-positive bacteria than gram-negative . V. cholerae and S. marcescens,were the most resistant bacteria to the extracts used , while highest inhibition was noticed against Streptococcus sp (28 mm) . The ethanolic extract showed the broadest antibacterial activity ( 11 to 28 mm ) , in comparison with moderate activity of essential oil , it was observed that the cold-water extract was more effective on the bacteria than hot-water extract . Ginger ethanolic extract presented higher diameter of inhibition zone for Streptococcus sp than in Ciprofloxacin , Cefotaxime , Cefalotin , Cephalexin and Cephaloridine , also it was found a similarity between the higher inhibition zones of ethanolic extract of ginger and some antibiotics for S. aureus , E. coli , Salmonella sp and Klebsiella sp . V. cholerae and S. marcescens,also highly resistant to antibiotics . Phytochemical analysis of ethanolic extract of ginger revealed the present of glycosides, terpenoids, flavonids and phenolic compounds


Diversity ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 230 ◽  
Author(s):  
Maria Letizia Gargano ◽  
Georgios I. Zervakis ◽  
Omoanghe S. Isikhuemhen ◽  
Giuseppe Venturella ◽  
Roberta Calvo ◽  
...  

Albino Grifola frondosa (Dicks.) Gray “maitake” mushrooms (described as G. albicans Imazeki and then placed in synonymy with G. frondosa) are particularly rare, and the few pertinent records are not treated in scientific publications. A field investigation carried out in Sicily (Italy) led to the collection of an unusual white Grifola specimen at the base of a living tree of Quercus pubescens Willd. s.l. The outcome of sequencing the internal transcribed spacer (ITS) region of nuclear ribosomal DNA (nrDNA) indicated that it belongs to G. frondosa and provided an insight to the phylogenetic relationships within the genus. The results of nutritional composition analysis showed that the albino basidioma possesses relatively high contents of Ca, Fe, K, and Cu and is rather low in Na when compared with literature data on edible mushrooms. Vitamin (B1, B2, B3, B5, B9, and D2) contents ranged from 0.15 to 3.89 mg per 100 g of mushroom dry weight. The cold-water extract of this specimen was effective at inhibiting the growth of Staphylococcus epidermidis ATCC 12228 and Pseudomonas aeruginosa ATCC 15442 at the maximum screening concentration of 50% v/v. In addition, the extract slowed down the ability of Staphylococcus aureus ATCC 43300 to form biofilms. According to data hereby reported, the albino G. frondosa is a culinary-medicinal mushroom with a promising exploitation potential.


2009 ◽  
Vol 72 (1) ◽  
pp. 169-173 ◽  
Author(s):  
HIDEMASA KODAKA ◽  
HAJIME TERAMURA ◽  
SHINGO MIZUOCHI ◽  
MIKAKO SAITO ◽  
HIDEAKI MATSUOKA

Compact Dry VP (CDVP) is a ready-to-use method for enumerating Vibrio parahaemolyticus in food. The presterilized plates contain a culture medium comprising peptone, NaCl, bile salts, antibiotics, chromogenic substrates, and polysaccharide gum as a cold water–soluble gelling. After diluting raw seafood samples in a phosphate-buffered saline solution, a 1-ml aliquot was inoculated onto the center of the plate and allowed to diffuse by capillary action. Blue-green colonies forming on the plates were counted after 18 to 20 h of incubation at 35°C. A total of 85 V. parahaemolyticus strains (62 tdh+ strains and 23 tdh− strains) were studied for inclusivity, 81 (95.3 %) of which produced blue-green colonies. When 97 strains (14 strains of Vibrio spp., 33 strains of coliform bacteria, and 50 strains of noncoliform bacteria) were assessed for exclusivity, 10 strains of Vibrio spp. produced non–blue-green colonies, and 87 strains failed to grow. The CDVP and U.S. Food and Drug Administration Bacteriological Analytical Manual (FDA-BAM) methods were compared with the use of four different types of raw seafood that were inoculated with four different V. parahaemolyticus strains. For raw tuna and oysters, the FDA-BAM colony lift method was used, whereas the FDA-BAM most-probable-number method was used for salmon and scallop. The linear correlation coefficients between the CDVP and FDA-BAM methods were 0.99 for fresh raw tuna, 0.95 for fresh raw oysters, 0.95 for frozen raw salmon, and 0.95 for frozen raw scallops. These results suggest that the CDVP method is useful for screening raw seafood for V. parahaemolyticus.


2014 ◽  
Vol 36 (3) ◽  
pp. 311-319 ◽  
Author(s):  
Dominique Charron ◽  
Emilie Bédard ◽  
Cindy Lalancette ◽  
Céline Laferrière ◽  
Michèle Prévost

OBJECTIVETo comparePseudomonas aeruginosaprevalence in electronic and manual faucets and assess the influence of connecting pipes and water quality.SETTINGFaucets in 4 healthcare centers in Quebec, Canada.METHODSWater samples from 105 electronic, 90 manual, and 14 foot-operated faucets were analyzed forP. aeruginosaby culture and enzymatic detection, and swab samples from drains and aerators were analyzed by culture. Copper and residual chlorine concentrations, temperature, and flow rate were measured.P. aeruginosaconcentrations were analyzed in 4 consecutive volumes of cold water and a laboratory study was conducted on copper pipes and flexible hoses.RESULTSP. aeruginosacontamination was found in drains more frequently (51%) than in aerators (1%) or water (culture: 4%, enzyme detection: 16%). Prevalence in water samples was comparable between manual (14%) and 2 types of electronic faucets (16%) while higher for foot-operated faucets (29%). However, type 2 electronic faucets were more often contaminated (31%) than type 1 (14%), suggesting that faucet architecture and mitigated volume (30 mL vs 10 mL) influenceP. aeruginosagrowth. Concentrations were 100 times higher in the first 250 mL than after flushing. Flexible hoses were more favorable toP. aeruginosagrowth than copper and a temperature of 40°C led to higher counts.CONCLUSIONSThe types of faucets and connecting pipes, flow rate, and water quality are important parameters influencing the prevalence and the concentrations ofP. aeruginosain faucets. High concentrations ofP. aeruginosain the first 250 mL suggest increased risk of exposure when using the first flush.Infect Control Hosp Epidemiol 2014;00(0): 1–9


2005 ◽  
Vol 29 (2) ◽  
pp. 113-118 ◽  
Author(s):  
Jack W. Martin ◽  
Nicholas Tselios ◽  
Mark S. Chambers

Ectodermal dysplasia (ED) is a hereditary condition characterized by abnormal development of the skin, hair, nails, sweat glands, and the stomatognathic system. There are many different types of ectodermal dysplasia of which X-linked anhidrotic ectodermal dysplasia is the most common. Multiple genes have been discovered to cause ectodermal dysplasias. With any form of ED, children may display a range of symptoms and challenging rehabilitation. This clinical report presents the treatment plan for a young patient with ED and anodontia requiring prosthetic restoration. J Clin Pediatr Dent 29(2): 113-118,2005


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