Examinando por Autor "Moya-Salazar, Marcia M."

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Acute Hepatic and Renal Toxicity Assessment of Euphorbia huanchahana (Klotzsch & Garcke) Boissier (Huachangana) in Holtzman Rats
(MDPI, 2022-06-30) Villafuerte, Graciela; Ñañez, Daniel; Félix, Luis M.; Moya-Salazar, Marcia M.; Torres-Véliz, Ernesto R.; Ramos, Antonio G.; Contreras-Pulache, Hans; Moya-Salazar, Marcia M.
Background:Euphorbia huachahana (Klotzch & Garcke) Boissier (Huachangana)(EhKGBh)has been used for over a century for medicinal purposes in the Peruvian population; however, itssafety and possible toxic effects of use have not been reported. The purpose of this study was todetermine the acute hepatic and renal toxicity of EhKGBh in Holtzman rats. Methods: Analyticaland experimental study. The population consisted of 52 rats of both sexes weighing between 300 and350 g divided into four groups: G1 and G2 EhKGBh groups (26 rats each) and two control groups(10 rats each). The experimental group was administered EhKGBh at a single dose of 2000 mg/kg P.O.to demonstrate toxicity during the 14-day follow-up. A daily assessment of alanine aminotransferase(ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bilirubin (TBIL), andconjugated bilirubin (CBIL) was performed. Results: Evaluation of the liver tissue showed mildchanges in inflammation, predominantly vascular, with small clots. Kidney tissue did not showinflammatory or necrotic changes. However, we showed differences in the weight of the rats betweenboth groups (p< 0.004) and significant increases in TBIL (0.98–1.07 mg/dL), CBIL (0.43–0.45 mg/dL),AST (126.4–141.8 U/L), and ALP (254–298 U/L) but not ALT (39.7–41.1 U/L) (p< 0.05). Conclusion:The single dose of EhKGBh extract at 2000 mg/kg has no toxicity, and there is no change in tissuetoxicity during the 14-day follow-up.
Acceso abierto
Acute Hepatic and Renal Toxicity Assessment of Euphorbia huanchahana (Klotzsch & Garcke) Boissier (Huachangana) in Holtzman Rats
(MDPI, 2022-06-30) Villafuerte, Graciela; Ñañez, Daniel; Félix, Luis M.; Moya-Salazar, Marcia M.; Torres-Véliz, Ernesto R.; Ramos, Antonio G.; Contreras-Pulache, Hans; Moya-Salazar, Marcia M.
Background:Euphorbia huachahana (Klotzch & Garcke) Boissier (Huachangana)(EhKGBh)has been used for over a century for medicinal purposes in the Peruvian population; however, itssafety and possible toxic effects of use have not been reported. The purpose of this study was todetermine the acute hepatic and renal toxicity of EhKGBh in Holtzman rats. Methods: Analyticaland experimental study. The population consisted of 52 rats of both sexes weighing between 300 and350 g divided into four groups: G1 and G2 EhKGBh groups (26 rats each) and two control groups(10 rats each). The experimental group was administered EhKGBh at a single dose of 2000 mg/kg P.O.to demonstrate toxicity during the 14-day follow-up. A daily assessment of alanine aminotransferase(ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bilirubin (TBIL), andconjugated bilirubin (CBIL) was performed. Results: Evaluation of the liver tissue showed mildchanges in inflammation, predominantly vascular, with small clots. Kidney tissue did not showinflammatory or necrotic changes. However, we showed differences in the weight of the rats betweenboth groups (p< 0.004) and significant increases in TBIL (0.98–1.07 mg/dL), CBIL (0.43–0.45 mg/dL),AST (126.4–141.8 U/L), and ALP (254–298 U/L) but not ALT (39.7–41.1 U/L) (p< 0.05). Conclusion:The single dose of EhKGBh extract at 2000 mg/kg has no toxicity, and there is no change in tissuetoxicity during the 14-day follow-up.
Acceso abierto
Changes in High-Density Lipoprotein (HDL), Low-Density Lipoprotein (LDL) and Cholesterol Concentration in Heavy Cannabis Users: A Single-Centre Study in Cusco, Peru
(MDPI, 2022-08-12) Cusihuaman, Sandro; Moya-Salazar, Jeel; Wong-Salgado, Pedro; Moya-Salazar, Marcia M.; Cañari, Betsy; Chicoma-Flores, Karina; Contreras-Pulache, Hans
“Background: The effect of cannabis on cholesterol and lipid balance has been reported for decades. However, there are conflicting reports on the reduction of low-density lipoprotein (LDL-C) and total cholesterol. The purpose of this study was to determine the immediate changes of Cannabis spp. consumption by pyrolytic route in heavy users. Methods: A cross-sectional study on 20 Peruvian heavy cannabis users (mean age: 31 ± 9.5 years). The inclusion criteria were males with an average weight of 50–70 kg, normal BMI, and having used cannabis, without association with other drugs, for at least one year with a high frequency per week (use: 4–7 days/week). High-density lipoprotein (HDL-C), LDL-C, and total cholesterol were evaluated 30 and 120 min after the administration of Cannabis spp. (~0.2 g by inhalation). Results: Of the total 12 (60%), 10 (50%), and 11 (55%) had desirable total cholesterol, fairly good HDL-C (40–60 mg/dL) and fairly good LDL-C (100–129 mg/dL) values, respectively. The mean basal concentration of total cholesterol, HDL-cholesterol, and LDL-cholesterol was 193.37 ± 20.18 mg/dL, 60.05 ± 6.36 mg/dL, and 129.65 ± 14.50 mg/dL, respectively. HDL-cholesterol showed progressive increases in participants with desirable HDL-C > 60 mg/dL at 30 min (10 vs. 14 participants, p < 0.001) and at 120 min (10 vs. 16 participants, p < 0.001), while LDL-C peaked in participants with concentrations <100 mg/dL at 30 min (desirable cholesterol: 0 vs. 2, p = 0.001). HDL-C concentration showed differences after cannabis consumption, showing increases at 30 (63.25 ± 7.68 mg/dL) and 120 min (69.15 ± 18.67 mg/dL) and total cholesterol concentration changed to 180.95 ± 19.3 mg/dL (95%CI 172.5 to 189.4) at 120 min (p = 0.007). Conclusions: HDL-C cholesterol increased 30 and 120 min after Cannabis spp. ingestion, while LDL-C and total cholesterol showed partial reductions in heavy-users from Cusco, Peru.“
Acceso abierto
Changes in High-Density Lipoprotein (HDL), Low-Density Lipoprotein (LDL) and Cholesterol Concentration in Heavy Cannabis Users: A Single-Centre Study in Cusco, Peru
(MDPI, 2022-08-12) Cusihuaman , Sandro; Moya-Salazar, Jeel; Wong-Salgado, Pedro; Moya-Salazar, Marcia M.; Cañari, Betsy; Chicoma-Flores , Karina; Contreras-Pulache, Hans
“Background: The effect of cannabis on cholesterol and lipid balance has been reported for decades. However, there are conflicting reports on the reduction of low-density lipoprotein (LDL-C) and total cholesterol. The purpose of this study was to determine the immediate changes of Cannabis spp. consumption by pyrolytic route in heavy users. Methods: A cross-sectional study on 20 Peruvian heavy cannabis users (mean age: 31 ± 9.5 years). The inclusion criteria were males with an average weight of 50–70 kg, normal BMI, and having used cannabis, without association with other drugs, for at least one year with a high frequency per week (use: 4–7 days/week). High-density lipoprotein (HDL-C), LDL-C, and total cholesterol were evaluated 30 and 120 min after the administration of Cannabis spp. (~0.2 g by inhalation). Results: Of the total 12 (60%), 10 (50%), and 11 (55%) had desirable total cholesterol, fairly good HDL-C (40–60 mg/dL) and fairly good LDL-C (100–129 mg/dL) values, respectively. The mean basal concentration of total cholesterol, HDL-cholesterol, and LDL-cholesterol was 193.37 ± 20.18 mg/dL, 60.05 ± 6.36 mg/dL, and 129.65 ± 14.50 mg/dL, respectively. HDL-cholesterol showed progressive increases in participants with desirable HDL-C > 60 mg/dL at 30 min (10 vs. 14 participants, p < 0.001) and at 120 min (10 vs. 16 participants, p < 0.001), while LDL-C peaked in participants with concentrations <100 mg/dL at 30 min (desirable cholesterol: 0 vs. 2, p = 0.001). HDL-C concentration showed differences after cannabis consumption, showing increases at 30 (63.25 ± 7.68 mg/dL) and 120 min (69.15 ± 18.67 mg/dL) and total cholesterol concentration changed to 180.95 ± 19.3 mg/dL (95%CI 172.5 to 189.4) at 120 min (p = 0.007). Conclusions: HDL-C cholesterol increased 30 and 120 min after Cannabis spp. ingestion, while LDL-C and total cholesterol showed partial reductions in heavy-users from Cusco, Peru.“
Acceso abierto
Reference intervals of the sex hormonal profile in healthy women: A retrospective single-center study in Peru
(Elsevier Ltd, 2022-09-01) Moya-Salazar, Jeel; Cerda, Sandra P.; Cañari, Betsy; Moya-Salazar, Marcia M.; Contreras-Pulache, Hans
The female hormonal profile is of utmost importance for the assessment of the endocrinological functional status and the diagnosis of diseases. The analysis must delimit their normality intervals based on the manufacturer's cut-off points. Due to not all intervals can be evaluated before use, it is imperative to verify the reference intervals to achieve uniformity in the interpretation of results in the female population. We determine the reference intervals of five female sex hormones [Follicle Stimulating hormone (FSH), Estradiol, Luteinizing Hormone (LH), Prolactin, and progesterone] using electrochemiluminescence in the Cobas e411 (Roche). We included female patients >18 years old, between the 3rd and 15th day of the menstrual cycle (follicular phase) and had no previous medical history or recent medication. For reference intervals analysis, we followed the recommendations of the CLSI C28-A3 guideline. The average concentration for FSH, progesterone, LH, prolactin and estradiol were 11.48 ± 21.10 mIU/ml, 8.19 ± 11.90 ng/ml, 10.98 ± 11.55 ng/ml, 25.05 ± 32.74 ng/mL, and 147.08 ± 473.8 pmol/mL, respectively. Eighty per cent of parameters showed a satisfactory transfer for the manufacturer's reference intervals, except for estradiol, which had 85.5% of transferred values. Our results suggest that 4/5 sex hormones were found within the manufacturer's reference intervals and can be quantified in Peruvian women, ensuring the quality of their results. However, it is necessary to determine the estradiol with other reagents and assays since we show errors in the transfer of intervals.
Acceso abierto
Reference intervals of the sex hormonal profile in healthy women: A retrospective single-center study in Peru
(Elsevier Ltd, 2022-09-01) Moya-Salazar, Jeel; Cerda, Sandra P.; Cañari, Betsy; Moya-Salazar, Marcia M.; Contreras-Pulache, Hans
The female hormonal profile is of utmost importance for the assessment of the endocrinological functional status and the diagnosis of diseases. The analysis must delimit their normality intervals based on the manufacturer's cut-off points. Due to not all intervals can be evaluated before use, it is imperative to verify the reference intervals to achieve uniformity in the interpretation of results in the female population. We determine the reference intervals of five female sex hormones [Follicle Stimulating hormone (FSH), Estradiol, Luteinizing Hormone (LH), Prolactin, and progesterone] using electrochemiluminescence in the Cobas e411 (Roche). We included female patients >18 years old, between the 3rd and 15th day of the menstrual cycle (follicular phase) and had no previous medical history or recent medication. For reference intervals analysis, we followed the recommendations of the CLSI C28-A3 guideline. The average concentration for FSH, progesterone, LH, prolactin and estradiol were 11.48 ± 21.10 mIU/ml, 8.19 ± 11.90 ng/ml, 10.98 ± 11.55 ng/ml, 25.05 ± 32.74 ng/mL, and 147.08 ± 473.8 pmol/mL, respectively. Eighty per cent of parameters showed a satisfactory transfer for the manufacturer's reference intervals, except for estradiol, which had 85.5% of transferred values. Our results suggest that 4/5 sex hormones were found within the manufacturer's reference intervals and can be quantified in Peruvian women, ensuring the quality of their results. However, it is necessary to determine the estradiol with other reagents and assays since we show errors in the transfer of intervals.
Acceso abierto
Six-sigma and quality planning of TORCH tests in the Peruvian population: a single-center cross-sectional study
(Springer Nature, 2022-01-11) Moya-Salazar, Jeel; SantaMaria, Bianca M.; Moya-Salazar, Marcia M.; Rojas-Zumaran, Víctor; Chicoma-Flores, Karina; Contreras-Pulache, Hans
Objective To ensure the health of newborns, it is necessary to perform high-quality diagnostic tests. The TORCH panel is a set of tests that identifies infectious pathogens such as Toxoplasma (Toxo) and Cytomegalovirus (CMV) that are common in low-setting populations. We performed TORCH panel quality planning using six sigma in a reference laboratory at Peru. Results This was a cross-sectional study. TORCH tests include Toxo, Rubella, CMV, and Herpes. We processed all samples by fourth-generation ELISA on the GEMINI XCR200 analyzer (Diatron, Budapest, Hungary). We obtained the imprecision from the annual data of the external quality assessment plan and we used the CLSI EP12-A3 guideline. In a total of 44,788 analyses, the average imprecision was 3.69 ± 1.47%, and CMV had lower imprecision (2.3 and 2.6% for IgM and IgG, respectively). Quality planning of the TORCH panel allowed estimating the sigma value that ranged from 4 to 10 (average 7 ± 2 sigma), where rubella had the highest values (10 for IgM and 8 for IgG) while HSV2 had the lowest values (4 for IgM and 5 for IgG). Our results suggest the optimal performance of half of the markers including Toxoplasma, Rubella, and CMV in the Peruvian population.
Acceso abierto
What is the perception of medical students about eLearning during the COVID-19 pandemic? A multicenter study in Peru
(Modestum LTD, 2022-07-28) Moya-Salazar, Jeel; Jaime-Quispe, Alexis; Milachay, Yeferson S.; Cañari , Betsy; Lozano-Zanely, Glenn; Chicoma-Flores, Karina; Moya-Salazar, Marcia M.; Contreras-Pulache, Hans
“Introduction: As face-to-face medical education was restricted during the pandemic; digital tools have been deployed to continue education showing a good educational impact in most countries. However, the perception of medical students in Peru on eLearning has not yet been investigated. This study assessed the perception of 440 medical students from two national universities in Peru on the characteristics and limitations of eLearning during 2021. Materials and methods: We conducted a cross-sectional study using the self-administered survey Encuesta Virtual en Tiempos de COVID-19 (EVI-CV19) on students between the second and sixth medical year of the Universidad Nacional Mayor de San Marcos (UNMSM) and the Universidad Nacional San Luis Gonzaga (UNSLG, n=325). Results: The majority of students were under 30 years of age (93.9% vs. 97.2%, p=0.084), and female (67% vs. 64%, p=0.107). Of the total, 63.9% and 81.5% UNMSM and UNSLG students considered the virtual platform effective in favouring feedback with recorded lectures (85.2% vs. 85.5%) and the organization of documents (61.7% vs. 80.9%), respectively (p>0.05). Seventy per cent and 46.8% of UNMSM and UNSLG students perceived that teachers were nottrained (p=0.063), and 26.1% and17.2% of students perceived thatthe virtual modality affected their academic performance a lot, respectively (p=0.003). About 38% of students from both universities perceived the virtual platforms as very secure. We found differences between UNMSM and UNSLG students on whether the virtual exams were fair (28.7% vs. 52.3%, p<0.001). Conclusions: This study reported a favorable perception of medical eLearning with clear differences in the limitations of the virtual environment. Keywords: medical education, COVID-19, eLearning, distance education, Peru“
Acceso abierto
“What is the perception of medical students about eLearning during the COVID-19 pandemic? A multicenter study in Peru“
(Modestum LTD, 2022-07-13) Moya-Salazar, Jeel; Jaime-Quispe, Alexis; Milachay, Yeferson S.; Cañari, Betsy; Lozano-Zanely, Glenn; Chicoma-Flores, Karina; Moya-Salazar, Marcia M.; Contreras-Pulache, Hans
“Introduction: As face-to-face medical education was restricted during the pandemic; digital tools have been deployed to continue education showing a good educational impact in most countries. However, the perception of medical students in Peru on eLearning has not yet been investigated. This study assessed the perception of 440 medical students from two national universities in Peru on the characteristics and limitations of eLearning during 2021. Materials and methods: We conducted a cross-sectional study using the self-administered survey Encuesta Virtual en Tiempos de COVID-19 (EVI-CV19) on students between the second and sixth medical year of the Universidad Nacional Mayor de San Marcos (UNMSM) and the Universidad Nacional San Luis Gonzaga (UNSLG, n=325). Results: The majority of students were under 30 years of age (93.9% vs. 97.2%, p=0.084), and female (67% vs. 64%, p=0.107). Of the total, 63.9% and 81.5% UNMSM and UNSLG students considered the virtual platform effective in favouring feedback with recorded lectures (85.2% vs. 85.5%) and the organization of documents (61.7% vs. 80.9%), respectively (p>0.05). Seventy per cent and 46.8% of UNMSM and UNSLG students perceived that teachers were nottrained (p=0.063), and 26.1% and17.2% of students perceived thatthe virtual modality affected their academic performance a lot, respectively (p=0.003). About 38% of students from both universities perceived the virtual platforms as very secure. We found differences between UNMSM and UNSLG students on whether the virtual exams were fair (28.7% vs. 52.3%, p<0.001). Conclusions: This study reported a favorable perception of medical eLearning with clear differences in the limitations of the virtual environment.“