Abstract  BACKGROUND: The aim of this study is to evaluate efficacy and tolerability of a complete skin care line consisting of an oral supplement in two distinct formulations for males and females, and a topical cream device in the treatment of mild and moderate acne. Oral supplements contain biotin, probiotic, vitamin E, zinc, nicotinamide; in the formulation for males beta sitosterol and boswella serrata were added, the oral supplement for females contains myo-inositol and folic acid. The topical cream device is represented by the association between active plant agents (verbascoside, ocimum gratissimum) and keratolytic molecules (salicylic acid, gluconolactone, complex alpha-hydroxy acids).

METHODS: An equal number of male and female patients with mild to moderate acne were enrolled in a double-blinded clinical trial. Efficacy and tolerability evaluations were performed at week 4 (T1) and week 12 (T2) by Global acne Grading System (GAGs).

RESULTS: Most of patients had satisfactory therapeutic response, in terms of GAGs reduction.. All the four groups presented a statistically significant improvement of the mean GAGs at T2 but those assuming the oral supplement improved more, as expected.

CONCLUSIONS: Our data suggest that this association can be considered a new effective option for mild and moderate acne. This therapeutic line differs from others in the gender matched oral treatment.

Abstract  Recently was observed that pyrethroids decrease motor coordination and that calcium channels can be important targets for this effect. To contribute with this observation, this work studied the motor coordination and exploration (using hole-board apparatus), and locomotion (using open-field apparatus) of rats exposed to following treatments: permethrin (PM), PM plus calcium gluconate (CG) and PM plus amlodipine (AML). The results obtained show that CG or AML alone not changed the motor coordination while PM decreases it. CG kept the effect of permethrin; AML, however, decreased the values of permethrin to the control. Locomotor activity and exploration, which could confound results of motor coordination, were not modified by treatments. The concentration of PM in brain tissue was increased by the CG and AML. The neurosomatic index (weight brain/body weight) was increased by the PM and PM+CG. In conclusion, the combined results here obtained indicates that the calcium ion and the channels in which it is involved can be important targets for the toxic effect of pyrethroid insecticide permethrin on motor nerve activity of rats.

Abstract  Calcium-activated Cl(-) secretion is an important modulator of regulated ion transport in murine airway epithelium and is mediated by an unidentified Ca(2+)-stimulated Cl(-) channel. We have transfected immortalized murine tracheal epithelial cells with the cDNA encoding the permeabilizing P2X(7) purinoreceptor (P2X(7)-R) to selectively permeabilize the basolateral membrane and thereby isolate the apical membrane Ca(2+)-activated Cl(-) current. In P2X(7)-R-permeabilized cells, we have demonstrated that UTP stimulates a Cl(-) current across the apical membrane of CF and normal murine tracheal epithelial cells. The magnitude of the UTP-stimulated current was significantly greater in CF than in normal cells. Ion substitution studies demonstrated that the current exhibited a permselectivity sequence of Cl(-) > I(-) > Br(-) > gluconate(-). We have also determined a rank order of potency for putative Cl(-) channel blockers: niflumic acid > or = 5-nitro-2-(3-phenylpropylamino)benzoic acid > 4, 4'-diisothiocyanostilbene-2,2'-disulfonate > glybenclamide > diphenlyamine-2-carboxylate, tamoxifen, and p-tetra-sulfonato-tetra-methoxy-calix[4]arene. Complete characterization of this current and the corresponding single channel properties could lead to the development of a new therapy to correct the defective airway surface liquid in cystic fibrosis patients.

Abstract  The influence of some frequent dietary constituents on gastrointestinal absorption of aluminum from drinking water and diet was investigated in mice. Eight groups of male mice received lactic (57.6 mg/kg/day), tartaric (96 mg/kg/day), gluconic (125.4 mg/kg/day), malic (85.8 mg/kg/day), succinic (75.6 mg/kg/day), ascorbic (112.6 mg/kg/day), citric (124 mg/kg/day), and oxalic (80.6 mg/kg/day) acids in the drinking water for one month. At the end of this period, animals were killed and aluminum concentrations in liver, spleen, kidney, brain, and bone were determined. All the dietary constituents significantly increased the aluminum levels in bone, whereas brain aluminum concentrations were also raised by the intake of lactic, gluconic, malic, citric, and oxalic acids. The levels of aluminum found in spleen were significantly increased by gluconic and ascorbic acids, whereas gluconic and oxalic acids also raised the concentrations of aluminum found in kidneys. Because of the wide presence and consumption of the above dietary constituents, in order to prevent aluminum accumulation and toxicity we suggest a drastic limitation of human exposure to aluminum.

Abstract  Effect of Dietary Calcium Glucarate (CaGT) on 7,12-dimethylbenz(a)anthracene (DMBA)-induced and 12-0-tetradecanoylphorbol-13-acetate (TPA)-promoted skin papillomas formation was evaluated in SENCAR mice. CaGT (4%)-supplemented diet did not produce any significant effect on the papilloma formation contrary to the results observed in CD-1 mice. Calcium gluconate (CaGL), used as a calcium control also exhibited effects similar to the CaGT. Thus, the amount of calcium present in the diet appears to be modifying factors in the skin papilloma formation in the skin tumor sensitive SENCAR mice. The calcium dependent TPA promotion may be related to the genetic predisposition of various calcium modifying factors in the different stocks and strains of mice.