Emir Adolfo Leal-Leon

Dr. Emir Adolfo Leal-Leon

Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, Mexico
orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 June 2022 in Cancers
Verified
Journal Article
Open access
PDF file
SBSaúl Armando Beltrán
Saúl Armando Beltrán
MGMartha Alejandra Fernández Galindo
Martha Alejandra Fernández Galindo
JOJOSE MIGUEL MORENO ORTIZ
JOSE MIGUEL MORENO ORTIZ
JCJose A. Contreras-Gutierrez
Jose A. Contreras-Gutierrez
JMJesus Madueña-Molina
Jesus Madueña-Molina
Daniel DiazDaniel Diaz
Daniel Diaz
In 2019, the Global Burden of Disease (GBD) estimated that prostate cancer (PC) was the 16th most common cause of death globally in males. In Mexico, PC epidemiology has been studied by a number of metrics and over various periods, although without including the most up-to-date estimates. Herein, we describe and compare the burdens and trends of PC in Mexico and its 32 states from 2000 to 2019. For this study, we extracted online available data from the GBD 2019 to estimate the crude and age-standardized rates (ASR per 100,000 people) of the incidence and mortality of PC. In Mexico, PC caused 27.1 thousand (95% uncertainty intervals, 20.6–36.0 thousand) incident cases and 9.2 thousand (7.7–12.7 thousand) deaths in males of all ages in 2019. Among the states, Sinaloa had the greatest ASR of incidence, and Guerrero had the highest mortality. The burden of PC showed an increasing trend, although the magnitude of change differed between metrics and locations. We found both an increasing national trend and subnational variation in the burden of PC. Our results confirm the need for updated and timely estimates to design effective diagnostic and treatment campaigns in locations where the burden of PC is the highest.

28 December 2023 in Cancers
Verified
Journal Article
Open access
PDF file
SBSaúl Armando Beltrán
Saúl Armando Beltrán
JCJose A. Contreras-Gutierrez
Jose A. Contreras-Gutierrez
ELErik Lizárrga-Verdugo
Erik Lizárrga-Verdugo
Erick Paul Gutiérrez-GrijalvaErick Paul Gutiérrez-Grijalva
Erick Paul Gutiérrez-Grijalva
KLKenia Lopez-Lopez
Kenia Lopez-Lopez
Daniel DiazDaniel Diaz
Daniel Diaz
The global burden of cancer is on the rise, with varying national patterns. To gain a better understanding and control of cancer, it is essential to provide national estimates. Therefore, we present a comparative description of cancer incidence and mortality rates in Mexico from 1990 to 2019, by age and sex for 29 different cancer groups. Based on public data from the Global Burden of Disease Study 2019, we evaluated the national burden of cancer by analyzing counts and crude and age-standardized rates per 100,000 people with 95% uncertainty intervals for 2019 and trends using the annual percentage change from 1990 to 2019. In 2019, cancer resulted in 222,060 incident cases and 105,591 deaths. In 2019, the highest incidence of cancer was observed in non-melanoma skin cancer, prostate cancer, and breast cancer. Additionally, 53% of deaths were attributed to six cancer groups (lung, colorectal, stomach, prostate, breast, and pancreatic). From 1990 to 2019, there was an increasing trend in incidence and mortality rates, which varied by 10–436% among cancer groups. Furthermore, there were cancer-specific sex differences in crude and age-standardized rates. The results show an increase in the national cancer burden with sex-specific patterns of change. These findings can guide national efforts to reduce health loss due to cancer.

6 May 2022 in Preprints.org
Verified
Preprint
Open access
PDF file
SBSaúl Armando Beltrán
Saúl Armando Beltrán
MGMartha Alejandra Fernández Galindo
Martha Alejandra Fernández Galindo
JOJOSE MIGUEL MORENO ORTIZ
JOSE MIGUEL MORENO ORTIZ
JCJose A. Contreras-Gutierrez
Jose A. Contreras-Gutierrez
JMJesus Madueña-Molina
Jesus Madueña-Molina
Daniel DiazDaniel Diaz
Daniel Diaz
In 2019, the Global Burden of Disease (GBD) estimated that prostate cancer (PC) was the 16th cause of death globally in males. In Mexico, PC epidemiology has been reported for a selected number of metrics and years, although without including the most up-to-date estimates. Herein, we describe and compare the burden and trends of PC in Mexico and its 32 states from 2000 to 2019. For this, we extracted online available data from the GBD 2019 to estimate the crude and age-standardized rate (ASR per 100,000 people) of incidence, mortality, and disability-adjusted life years (DALYs). In Mexico, PC caused 27.1 thousand (95% uncertainty intervals, 20.6-36.0 thousand) incident cases, 9.2 thousand (7.7-12.7 thousand) deaths, and 161.5 thousand (122.7-219.5 thousand) DALYs in males of all ages in 2019. Among states, Sinaloa had the greatest ASR of incidence and Guerrero the highest values of deaths and DALYs. The burden of PC showed an increasing trend, although the magnitude of change differed between metrics and locations. We found both an increasing national trend and subnational variation in the burden of PC. Our results confirm the need for updated and timely estimates to design effective diagnostic and treatment campaigns in locations where the burden of PC is the highest.

23 November 2023 in Preprints.org
Verified
Preprint
Open access
PDF file
SBSaul A. Beltran-Ontiveros
Saul A. Beltran-Ontiveros
JCJose A. Contreras-Gutierrez
Jose A. Contreras-Gutierrez
ELErik Lizárrga-Verdugo
Erik Lizárrga-Verdugo
Erick Paul Gutiérrez-GrijalvaErick Paul Gutiérrez-Grijalva
Erick Paul Gutiérrez-Grijalva
KLKenia Lopez-Lopez
Kenia Lopez-Lopez
Daniel DiazDaniel Diaz
Daniel Diaz
The cancer burden is increasing worldwide with contrasting national patterns. Therefore, providing national estimations is necessary to understand and control this health issue. Herein, we comparatively describe incidence, mortality, and disability-adjusted lived years (DALYs) due to 29 groups of cancer in Mexico from 1990 to 2019 by sex and age. Using public data from the Global Burden of Disease Study 2019, we assessed the national burden of cancer using counts and crude and age-standardized rates per 100,000 people with 95% uncertainty intervals for 2019 and their trends using the annual percentage of change from 1990 to 2019. In 2019, cancer caused 222,060 incident cases, 105,591 deaths, and 2,86,054 DALYs in the general population. Nonmelanoma skin cancer, prostate cancer, and breast cancer had the highest incidence, and six groups of cancer (lung, colorectal, stomach, prostate, breast, and pancreatic) caused 53% of the deaths in 2019. From 1990 to 2019, incidence and mortality showed an increasing trend that varied between 10% and 436% among the groups of cancer, whereas the crude and age-standardized rates showed cancer-specific sex disparities. Our results demonstrate a substantial growth of the national burden of cancer with sex-specific patterns of change. These results may guide national efforts toward reducing health loss due to cancer.

16 March 2022 in Journal of Oncology
Verified
Journal Article
Open access
PDF file
DCDORA MARIA CEDANO-PRIETO
DORA MARIA CEDANO-PRIETO
FBFernando Bergez-Hernandez
Fernando Bergez-Hernandez
ELEmir Adolfo Leal-Leon
Emir Adolfo Leal-Leon
NMNoemí García Magallanes
Noemí García Magallanes
FOFRED LUQUE ORTEGA
FRED LUQUE ORTEGA
EAEliakym Arámbula
Eliakym Arámbula
Breast cancer (BCa) is one of the leading causes of death in women with these types of malignancies. Early detection is pivotal to improve prognosis and reduce mortality. Several proteins and genes have been proposed as biomarkers for cancer; however, further studies are required before a molecule is accepted as a definitive biomarker. This study was aimed at investigating the expression of survivin variants S-WT, S-2B, and S-ΔEx3, as well as adipokines LEP and ADIPOQ in breast cancer. Breast samples were obtained from patients with ( ) and without ( ) BCa, and relative gene expression was assessed by RT-qPCR. S-WT and S-2B showed a significant increase in BCa samples ( and , respectively) and in high-aggressiveness BCa ( and , respectively). Despite S-ΔEx3 expression remained globally unchanged, when dividing BCa samples according to the stage, this gene showed a significant tendency to increase towards more advanced stages, and the exact opposite effect was observed for LEP. Furthermore, LEP expression showed a negative correlation with S-2B ( ) and S-WT ( ), and in the same manner, ADIPOQ was negatively related with these two survivin variants ( and , respectively). Interestingly, S-ΔEx3 expression appears unaffected by LEP and ADIPOQ expressions. Our results highlight the importance of investigating specific variants of a given gene, as sequence variation may grant different correlation with other important structures and diseases.