Miguel Guzman - Academia.edu (original) (raw)
Papers by Miguel Guzman
Journal of clinical psychology, 2002
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques, 2009
Sexually Transmitted Diseases, 1992
Fifty patients with lesions characteristic of chancroid were enrolled in an open-label prospectiv... more Fifty patients with lesions characteristic of chancroid were enrolled in an open-label prospective study to examine the efficacy of a single 2-gm dose of spectinomycin for treatment of chancroid. Only those patients (41 men; aged 18 to 49 years) with positive culture results for Haemophilus ducreyi were included in the analysis. Patients each received a single 2-gm dose of spectinomycin intramuscularly. The recovery process began on the third day of follow-up, as evidenced by the occurrence of epithelialization and a decrease in inflammation. By the seventh day after treatment, only one patient had ulcers; 40 patients experienced eradication of all ulcers (P less than 0.0001). The condition of nodes affected by infection also indicated efficacy of treatment (P less than 0.01); only one patient still had a swollen node by the fourteenth day after treatment. Of the 41 patients, 37 (90%) had negative culture results for H. ducreyi on the third day after treatment. Only 4 patients (10%) required a second dose of spectinomycin on the seventh day to affect a cure. Treatment with spectinomycin resulted in a 98% cure rate 14 days after treatment. The minimum inhibitory concentration (MIC) of spectinomycin was 1 microgram/mL to 3 micrograms/mL in the 15 strains studied. The drug was well tolerated and no adverse reactions were reported. It is concluded that a single 2-gm dose of spectinomycin is a safe and effective alternative drug for treatment of chancroid.
Journal of Pediatric Gastroenterology and Nutrition, 2009
... Gastric Burkitt Lymphoma: A Rare Cause of Upper Gastrointestinal Bleeding in a Child With HIV... more ... Gastric Burkitt Lymphoma: A Rare Cause of Upper Gastrointestinal Bleeding in a Child With HIV/AIDS. Chogle, Ashish; Nguyen, Katrina; Lazare, Farrah; Guzman, Miguel; Anderson, Virginia; Treem, William R. ... 4. Martin de Pablos J, Santano Dominquez M, et al. ...
Journal of Agricultural and Food Chemistry, 1962
A processing method for preparing whole corn flours for human consumption under heat and pressure... more A processing method for preparing whole corn flours for human consumption under heat and pressure without the use of lime was developed. A nutritional evaluation was made of samples produced experimentally by this new method to determine the best conditions for preparing a product of maximum nutritive value. Nine processed whole corn flours, prepared under different conditions, were evaluated b y means of chemical analyses, microbiological assay of amino acids, and biological experiments with rats. None of the treatments of the flours had any effect on composition and true protein digestibility, but all reduced the solubility of the nitrogen and high pressure reduced the nutritive value of the flour. Processed whole corn flour with higher nutritive value can be prepared by cooking moist corn at 5 p.s.i.g. for 15 or 30 minutes. N THE CENTRAL AMERICAN countries,
Journal of Chemical Education, 1996
... Miguel Guzmán,* Pedro Ortega, and Leonel Vera Departamento de Química, Universidad Católica d... more ... Miguel Guzmán,* Pedro Ortega, and Leonel Vera Departamento de Química, Universidad Católica del Norte, Antofagasta, Chile ... AA; Pearson, RG Kinet-ics and Mechanism, 2nd ed.; John Wiley and Sons: New York, 1961, pp 1415. ...
Journal of Chemical Education, 1996
The development of a multistep organic synthesis in the research field involves a great deal of e... more The development of a multistep organic synthesis in the research field involves a great deal of effort in planning and execution. Once the synthesis is achieved successfully, the challenge becomes the efficient production of the compound. Consequently, the next goal is a synthetic procedure that is widely accessible. Similar situations can be found in the teaching field. Each term, lab
Journal of Chemical Education, 1993
Journal of Agricultural and Food Chemistry, 1963
... Chem. 164, 487 (1946). (10) Fontaine, TD, Samuels, C., Irving, GW, Jr., Ind. Eng. ... 2880. C... more ... Chem. 164, 487 (1946). (10) Fontaine, TD, Samuels, C., Irving, GW, Jr., Ind. Eng. ... 2880. Correspondence The Nutritional Evaluation of Processed Whole Corn Flours The authors of this article, Ricardo Bressani, Sonia V. Castillo, and Miguel A. Guzman [(J. AGR. FOOD CHEM. ...
Atherosclerosis Supplements, 2000
The effect of different dietary habits on atherosclerosis was investigated by examining the conte... more The effect of different dietary habits on atherosclerosis was investigated by examining the content of ordinary diets and relevant risk factors through a mass health survey on two village populations in Japan. In total, 261 inhabitants in the fishing village and 209 in the farming village were examined for body build, blood pressure, and blood chemistry. Information on smoking habits and food consumption was obtained using a semi-quantitative item-frequency questionnaire. Pulse wave velocity of the aorta, intima-media thickness of the carotid artery, and atherosclerotic plaques as obtained by ultrasonography were used as measures of atherosclerosis. All measures of atherosclerosis are lower in the fishing village than in the farming village in both men and women. There is a striking 5-8-fold difference in the number of atherosclerotic plaques (P B 0.0001) between the populations. The observed differences in atherosclerosis parallels differences in dietary habits and differences in the serum essential fatty acids. Evaluation of the -3 fatty acids over the combined populations reveals a negative association with the number of plaques in the common carotid while the -6 fatty acids shows a weak positive association with plaques.
Kidney International, 1996
Renovasculopathies of nephrosclerosis in relation to atherosclerosis at ages 25 to 54 years. Reno... more Renovasculopathies of nephrosclerosis in relation to atherosclerosis at ages 25 to 54 years. Renovasculopathies of hypertension include arteriolar hyalinization and arterial intimal fibroplasia. Atherosclerotic features of coronary arteries and aorta include fatty streaks and raised lesions. Data were obtained from a series of 573 autopsies of black and Caucasian males and females aged 25 to 54 years, who died of violent and natural causes unrelated to atherosclerosis. Analysis showed positive correlations of coronary and aortic raised lesions with arteriolar hyalinization. Arterial intimal fibroplasia correlated positively with raised lesions in the aorta but only weakly and inconsistently in the coronary arteries. The extent of fatty streaks in the coronaries, as in the aorta, did not correlate with either form of renovasculopathy. These results provide evidence that hyalinization of renal arterioles may be a marker for young people who have the most advanced coronary atherosclerosis, and who therefore have an early start upon a course toward coronary heart disease later in life.
American Journal of Physical Anthropology, 1969
Subperiosteal and medullary cavity diameters of 91 Guatemalan boys hospitalized with a diagnosis ... more Subperiosteal and medullary cavity diameters of 91 Guatemalan boys hospitalized with a diagnosis of protein-calorie malnutrition show a slight but significant increase in total width but a marked reduction at the endosteal surface, and in cortical area and percent cortical area, indicative of continuing subperiosteal apposition and a dramatic excess of endosteal resorption.
Biomédica, 1984
Resumo: Se comprobo la produccion de enterotoxina termoestable en una cepa de E. Coli mediante el... more Resumo: Se comprobo la produccion de enterotoxina termoestable en una cepa de E. Coli mediante el ensayo del factor de permeabilidad en la piel del curi (Cavia cobaya), inyectando intracutaneamente 0, 1 ml de suspension de la cepa en solucion reguladora ...
Journal of clinical psychology, 2002
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques, 2009
Sexually Transmitted Diseases, 1992
Fifty patients with lesions characteristic of chancroid were enrolled in an open-label prospectiv... more Fifty patients with lesions characteristic of chancroid were enrolled in an open-label prospective study to examine the efficacy of a single 2-gm dose of spectinomycin for treatment of chancroid. Only those patients (41 men; aged 18 to 49 years) with positive culture results for Haemophilus ducreyi were included in the analysis. Patients each received a single 2-gm dose of spectinomycin intramuscularly. The recovery process began on the third day of follow-up, as evidenced by the occurrence of epithelialization and a decrease in inflammation. By the seventh day after treatment, only one patient had ulcers; 40 patients experienced eradication of all ulcers (P less than 0.0001). The condition of nodes affected by infection also indicated efficacy of treatment (P less than 0.01); only one patient still had a swollen node by the fourteenth day after treatment. Of the 41 patients, 37 (90%) had negative culture results for H. ducreyi on the third day after treatment. Only 4 patients (10%) required a second dose of spectinomycin on the seventh day to affect a cure. Treatment with spectinomycin resulted in a 98% cure rate 14 days after treatment. The minimum inhibitory concentration (MIC) of spectinomycin was 1 microgram/mL to 3 micrograms/mL in the 15 strains studied. The drug was well tolerated and no adverse reactions were reported. It is concluded that a single 2-gm dose of spectinomycin is a safe and effective alternative drug for treatment of chancroid.
Journal of Pediatric Gastroenterology and Nutrition, 2009
... Gastric Burkitt Lymphoma: A Rare Cause of Upper Gastrointestinal Bleeding in a Child With HIV... more ... Gastric Burkitt Lymphoma: A Rare Cause of Upper Gastrointestinal Bleeding in a Child With HIV/AIDS. Chogle, Ashish; Nguyen, Katrina; Lazare, Farrah; Guzman, Miguel; Anderson, Virginia; Treem, William R. ... 4. Martin de Pablos J, Santano Dominquez M, et al. ...
Journal of Agricultural and Food Chemistry, 1962
A processing method for preparing whole corn flours for human consumption under heat and pressure... more A processing method for preparing whole corn flours for human consumption under heat and pressure without the use of lime was developed. A nutritional evaluation was made of samples produced experimentally by this new method to determine the best conditions for preparing a product of maximum nutritive value. Nine processed whole corn flours, prepared under different conditions, were evaluated b y means of chemical analyses, microbiological assay of amino acids, and biological experiments with rats. None of the treatments of the flours had any effect on composition and true protein digestibility, but all reduced the solubility of the nitrogen and high pressure reduced the nutritive value of the flour. Processed whole corn flour with higher nutritive value can be prepared by cooking moist corn at 5 p.s.i.g. for 15 or 30 minutes. N THE CENTRAL AMERICAN countries,
Journal of Chemical Education, 1996
... Miguel Guzmán,* Pedro Ortega, and Leonel Vera Departamento de Química, Universidad Católica d... more ... Miguel Guzmán,* Pedro Ortega, and Leonel Vera Departamento de Química, Universidad Católica del Norte, Antofagasta, Chile ... AA; Pearson, RG Kinet-ics and Mechanism, 2nd ed.; John Wiley and Sons: New York, 1961, pp 1415. ...
Journal of Chemical Education, 1996
The development of a multistep organic synthesis in the research field involves a great deal of e... more The development of a multistep organic synthesis in the research field involves a great deal of effort in planning and execution. Once the synthesis is achieved successfully, the challenge becomes the efficient production of the compound. Consequently, the next goal is a synthetic procedure that is widely accessible. Similar situations can be found in the teaching field. Each term, lab
Journal of Chemical Education, 1993
Journal of Agricultural and Food Chemistry, 1963
... Chem. 164, 487 (1946). (10) Fontaine, TD, Samuels, C., Irving, GW, Jr., Ind. Eng. ... 2880. C... more ... Chem. 164, 487 (1946). (10) Fontaine, TD, Samuels, C., Irving, GW, Jr., Ind. Eng. ... 2880. Correspondence The Nutritional Evaluation of Processed Whole Corn Flours The authors of this article, Ricardo Bressani, Sonia V. Castillo, and Miguel A. Guzman [(J. AGR. FOOD CHEM. ...
Atherosclerosis Supplements, 2000
The effect of different dietary habits on atherosclerosis was investigated by examining the conte... more The effect of different dietary habits on atherosclerosis was investigated by examining the content of ordinary diets and relevant risk factors through a mass health survey on two village populations in Japan. In total, 261 inhabitants in the fishing village and 209 in the farming village were examined for body build, blood pressure, and blood chemistry. Information on smoking habits and food consumption was obtained using a semi-quantitative item-frequency questionnaire. Pulse wave velocity of the aorta, intima-media thickness of the carotid artery, and atherosclerotic plaques as obtained by ultrasonography were used as measures of atherosclerosis. All measures of atherosclerosis are lower in the fishing village than in the farming village in both men and women. There is a striking 5-8-fold difference in the number of atherosclerotic plaques (P B 0.0001) between the populations. The observed differences in atherosclerosis parallels differences in dietary habits and differences in the serum essential fatty acids. Evaluation of the -3 fatty acids over the combined populations reveals a negative association with the number of plaques in the common carotid while the -6 fatty acids shows a weak positive association with plaques.
Kidney International, 1996
Renovasculopathies of nephrosclerosis in relation to atherosclerosis at ages 25 to 54 years. Reno... more Renovasculopathies of nephrosclerosis in relation to atherosclerosis at ages 25 to 54 years. Renovasculopathies of hypertension include arteriolar hyalinization and arterial intimal fibroplasia. Atherosclerotic features of coronary arteries and aorta include fatty streaks and raised lesions. Data were obtained from a series of 573 autopsies of black and Caucasian males and females aged 25 to 54 years, who died of violent and natural causes unrelated to atherosclerosis. Analysis showed positive correlations of coronary and aortic raised lesions with arteriolar hyalinization. Arterial intimal fibroplasia correlated positively with raised lesions in the aorta but only weakly and inconsistently in the coronary arteries. The extent of fatty streaks in the coronaries, as in the aorta, did not correlate with either form of renovasculopathy. These results provide evidence that hyalinization of renal arterioles may be a marker for young people who have the most advanced coronary atherosclerosis, and who therefore have an early start upon a course toward coronary heart disease later in life.
American Journal of Physical Anthropology, 1969
Subperiosteal and medullary cavity diameters of 91 Guatemalan boys hospitalized with a diagnosis ... more Subperiosteal and medullary cavity diameters of 91 Guatemalan boys hospitalized with a diagnosis of protein-calorie malnutrition show a slight but significant increase in total width but a marked reduction at the endosteal surface, and in cortical area and percent cortical area, indicative of continuing subperiosteal apposition and a dramatic excess of endosteal resorption.
Biomédica, 1984
Resumo: Se comprobo la produccion de enterotoxina termoestable en una cepa de E. Coli mediante el... more Resumo: Se comprobo la produccion de enterotoxina termoestable en una cepa de E. Coli mediante el ensayo del factor de permeabilidad en la piel del curi (Cavia cobaya), inyectando intracutaneamente 0, 1 ml de suspension de la cepa en solucion reguladora ...