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C Alessandrini

Publications and source records attributed to C Alessandrini.

46 records · Page 3Linked to original sources
PubMed1979

[Histochemical and ultrastructural studies of the innervation of the lymph-vessel and blood-vessel wall. 1. Adrenergic innervation].

The adrenergic innervation of the lymph vascular wall was studied by means of the Falck fluorescence histochemical tecnique and electron microscopy with Tranzer and Richards' histochemical tecnique. The lymph vessels wall, compared with that of blood vessels, shows very few adrenergic nerve fibers located in the adventitia outside the smooth muscle cells. The possible role of the nervous system in the motor control of the lymph vessels is discussed.

Adrenergic Fibers↗
PubMed1979

[Histochemical and ultrastructural studies of the innervation of the lymph-vessel and blood-vessel wall. II. Cholinergic innervation].

Using the Acetylcholinesterase (AChE) tecnique applied to light and electron microscopy, was observed that the lymph vascular wall shows very few and inconstant AChE-positive fibers. The cholinergic fibers run prevalently longitudinal in the perivascular connective tissue, only brief segments show a loose network. The results are discussed and compared with blood vessels innervation.

Animals↗
PubMedDate not supplied

Ultrastructural modifications of the testes and accessory sex glands of genetically dwarf mice after treatment with human chorionic somatomammotropin.

We have studied the effects of treatment with human chorionic somatommatropin (hCS) in the dwarf mouse on the weight and ultrastructure of the testes and accessory sex glands. We used animals of the Snell-Bagg (dw/dw) strain, whose hypophyses secrete neither prolactin nor growth hormone. The effects found were compared with those produced by a similar treatment with ovine prolactin. The administration of hCS causes a significant increase in the wet weight of the testes and accessory sex glands. Ultrastructural observations have demonstrated that hCS is able to stimulate sperminogenesis and the secretory function of the accessory sex glands. Prolactin, as shown in previous reports in the literature, has a similar action on the male reproductive system. However, contrary to the observation after prolactin therapy, no matings were observed after treatment with hCS.

Animals↗
PubMedDate not supplied

Carbon dioxide therapy in the treatment of localized adiposities: clinical study and histopathological correlations.

The authors report their experience using carbon dioxide (CO2) therapy for the treatment of 48 female patients presenting adipose accumulations, located on the thighs, knees, and/or abdomen; a Carbomed Programmable Automatic Carbon Dioxide Therapy apparatus was used. In light of the effects of CO2 on the microcirculation recently described in the literature, we expected this gas, which we administered subcutaneously, to positively affect the physiological oxidative lipolytic process. The aim of our study was to evaluate the effect of this therapy on localized adiposities. As such, we describe the method we used and report the results observed in the areas treated (in terms of reduction in maximum circumference) as well as side effects. Furthermore, we assessed the effect of subcutaneous administration of CO2 on the microcirculation by showing changes in the Laser Doppler signal and in the concentration of transcutaneous oxygen tension (tcPO2). Pre- and posttreatment biopsies of tissues were performed in seven patients in order to study the changes induced by the use of CO2 on both adipose and connective tissues. All data obtained were statistically analyzed; values of P < 0.05 were considered significant.

Abdomen↗
PubMedDate not supplied

Evaluation of biocompatibility of metallic dental materials in cell culture model.

Biocompatibility of metals for dental use was tested using a three-dimensional model consisting of oral keratinocytes cultured on de-epidermised sub-mucosa. The toxicity of orthodontic metallic wire and soldering material was assessed through parameters such as the morphology and growth rate of the keratinocytes, as well as by classical histology, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The sharp composition of metallic wires and soldering materials was assessed by Auger Electron Spectroscopy (AES). The results of our experiment showed that the new model revealed inhibition of keratinocyte growth and stratification near soldering material, whereas mucosal cells were able to grow and layer out on dental wire. It is concluded that this experimental model, which simulates the oral environment, is useful for studying the effects of materials for dental use for its sensibility and reproducibility. Moreover it can provide morpho-functional information which cannot be achieved by traditional methods.

Cell Culture Techniques↗