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1.
J Pharm Bioallied Sci ; 16(Suppl 1): S921-S923, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38595519

RESUMO

Background: Endodontic treatment involves the removal of infected dental pulp and subsequent disinfection of the root canal system. The effectiveness of drug delivery systems in root canal disinfection is critical for successful treatment outcomes. This in vitro study explores the potential of nanoparticles as a novel drug delivery system for endodontic treatment. Materials and Methods: Nanoparticles were synthesized using a biocompatible polymer and loaded with an antimicrobial agent. A total of 60 extracted human teeth were prepared to create standardized root canal infections. The teeth were randomly divided into three experimental groups: (1) conventional irrigation, (2) nanoparticle irrigation, and (3) control (no irrigation). The root canals in each group were irrigated with their respective solutions for 5 minutes. After treatment, microbial samples were collected from the root canals and cultured for colony-forming unit (CFU) analysis. The depth of penetration of nanoparticles into dentinal tubules was assessed using scanning electron microscopy (SEM). Results: The conventional irrigation group showed a reduction in microbial load from an average of 7.8 × 10^5 CFU/mL (SD ± 1.2 × 10^5) to 3.4 × 10^4 CFU/mL (SD ± 7.9 × 10^3) (P < 0.001). In contrast, the nanoparticle irrigation group exhibited a more significant reduction, with a decrease in CFU to 1.2 × 10^3 CFU/mL (SD ± 4.2 × 10^2) (P < 0.001). SEM analysis revealed deep penetration of nanoparticles into dentinal tubules, reaching an average depth of 150 µm. Conclusion: Nanoparticles loaded with antimicrobial agents demonstrated superior efficacy in reducing microbial load within root canals compared to conventional irrigation. Their ability to penetrate dentinal tubules suggests their potential as an innovative drug delivery system for endodontic treatment. Further research and clinical trials are warranted to validate these promising in vitro results and assess the safety and efficacy of nanoparticles in clinical practice.

2.
J Biochem Mol Toxicol ; 38(3): e23672, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38462741

RESUMO

Adhesion G protein-coupled receptor G4 (ADGRG4) is a G protein-coupled receptor (GPCR) that belongs to the adhesion family. Participation of ADGRG4 in cell adhesion and migration, signaling pathway activation, influence on angiogenesis, and modulation of immune responses are some of the possible ways through which it may contribute to oncogenesis. Conducting extensive omics studies poses budgetary challenges to small labs in peripheral areas, primarily due to restricted research funding and resource limitations. Here we propose a low-budget model for biomarker screening. A total of 11 ovarian cancer samples were sent for exome sequencing. Among various genes, ADGRG4 variants were present in all 11 samples and thus were chosen as a potential biomarker in the present population. However, the precise role of ADGRG4 in cancer is not fully understood. The present study aims to look at the association between the ADGRG4 gene variants and their risk of ovarian cancer in the North Indian region of Jammu and Kashmir, India. Overall, 235 individuals (115 cases and 120 healthy controls) were genotyped for the selected biomarker using Sanger sequencing. Logistic regression was used to assess the relationship between the variant and ovarian cancer. A statistically significant association was identified between the ADGRG4 variant rs5930932 polymorphism and the incidence of ovarian cancer among the study population. When corrected for age and BMI, the dominating OR of variant rs5930932 was 1.035 (1.003-1.069) under HWE patients (0.95) and controls (0.18), with a p-value of (0.03). According to the findings of the current investigation, the ADGRG4 gene variant rs5930932 increases the chance of developing ovarian cancer in the studied population.


Assuntos
Biomarcadores Tumorais , Neoplasias Ovarianas , Humanos , Feminino , Biomarcadores Tumorais/genética , Sequenciamento do Exoma , Genótipo , Neoplasias Ovarianas/genética , Receptores Acoplados a Proteínas G/genética , Índia/epidemiologia
3.
BMC Cancer ; 23(1): 874, 2023 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-37718447

RESUMO

BACKGROUND: Telomeres are repetitive DNA sequences located at the ends of chromosomes, playing a vital role in maintaining chromosomal integrity and stability. Dysregulation of telomeres has been implicated in the development of various cancers, including non-small cell lung cancer (NSCLC), which is the most common type of lung cancer. Genetic variations within telomere maintenance genes may influence the risk of developing NSCLC. The present study aimed to evaluate the genetic associations of select variants within telomere maintenance genes in a population from Jammu and Kashmir, North India, and to investigate the relationship between telomere length and NSCLC risk. METHODS: We employed the cost-effective and high-throughput MassARRAY MALDI-TOF platform to assess the genetic associations of select variants within telomere maintenance genes in a population from Jammu and Kashmir, North India. Additionally, we used TaqMan genotyping to validate our results. Furthermore, we investigated telomere length variation and its relation to NSCLC risk in the same population using dual-labeled fluorescence-based qPCR. RESULTS: Our findings revealed significant associations of TERT rs10069690 and POT1 rs10228682 with NSCLC risk (adjusted p-values = 0.019 and 0.002, respectively), while TERF2 rs251796 and rs2975843 showed no significant associations. The TaqMan genotyping validation further substantiated the associations of TERT rs10069690 and rs2242652 with NSCLC risk (adjusted p-values = 0.02 and 0.003, respectively). Our results also demonstrated significantly shorter telomere lengths in NSCLC patients compared to controls (p = 0.0004). CONCLUSION: This study highlights the crucial interplay between genetic variation in telomere maintenance genes, telomere attrition, and NSCLC risk in the Jammu and Kashmir population of North India. Our findings suggest that TERT and POT1 gene variants, along with telomere length, may serve as potential biomarkers and therapeutic targets for NSCLC in this population. Further research is warranted to elucidate the underlying mechanisms and to explore the potential clinical applications of these findings.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Humanos , Carcinoma Pulmonar de Células não Pequenas/genética , Neoplasias Pulmonares/epidemiologia , Neoplasias Pulmonares/genética , Telômero/genética , Índia/epidemiologia , Espectrometria de Massas
4.
Sci Rep ; 13(1): 12146, 2023 07 27.
Artigo em Inglês | MEDLINE | ID: mdl-37500641

RESUMO

Polypropylene (PP), a commonly used plastic, is used for making the outer layers of a surgical face mask. In 2020, around 3 billion surgical face masks were disposed into the environment, causing a huge threat to wildlife, aquatic life, and ecosystems. In this work, we have reported the sulfonation technique for stabilizing the surgical face masks and their conversion into carbon nanoparticles for application as a supercapacitor electrode. The electrode is fabricated by preparing a slurry paste of carbon nanoparticles and pasting it on a conductive wearable fabric. To investigate the performance of the carbon thin film electrode, electrochemical techniques are employed. The Cyclic Voltammetry (CV) analysis performed at different scan rates in a 6 molar KOH electrolyte reveals that the carbon thin film acts as a positive electrode. At 4 A g-1, the electrode shows a specific capacitance of 366.22 F g-1 and 100% retention of specific capacitance for 8000 cycles. A two-electrode asymmetric device is fabricated using carbon thin film as the positive electrode, NiO thin film as the negative electrode, and a KOH separator between two electrodes. The device shows a specific capacitance of 113.73 F g-1 at 1.3 A g-1 and glows a red LED for 6 min. This work is a step towards upcycling the waste produced from surgical face masks used during the COVID-19 pandemic and its application for energy storage.


Assuntos
COVID-19 , Humanos , Ecossistema , Máscaras , Pandemias , Carbono , Eletrodos
5.
J Cancer Res Ther ; 19(3): 530-536, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37470570

RESUMO

Cisplatin, that is, cis-diamminedichloroplatinum is a coordinate compound that is mainly preferred as prior treatment against several solid tumors and malignancies like ovaries, head and neck, testicular, and lung cancers because of its anticancer activity. Cisplatin binds at the N7 position of purine and forms adducts, leading to altered activity of DNA that triggers apoptosis. DNA damage is followed by several signaling pathways like induced oxidative stress, upregulated p53, mitogen-activated protein kinase (MAPK), and Jun N-terminal kinases (JNK) or Akt pathways along with induced apoptosis. Additionally, cisplatin treatment comes with few disadvantages such as toxic effects, that is, hepatotoxicity, cardiotoxicity, neurotoxicity, etc., and drug resistance. Furthermore, to overcome cisplatin resistance and toxicological effects, combination drug therapy has been considered. The aim of the review is to focus on the molecular mechanism of action of cisplatin and combination drug therapy to reduce the side effects in cancer therapy.


Assuntos
Antineoplásicos , Neoplasias Pulmonares , Humanos , Cisplatino/efeitos adversos , Neoplasias Pulmonares/tratamento farmacológico , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Apoptose , Transdução de Sinais , Antineoplásicos/efeitos adversos
6.
J Cancer Res Ther ; 19(2): 214-217, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37006060

RESUMO

Introduction: Ovarian and breast cancers are highly prevalent in the population of Jammu and Kashmir (J&K). However, case-control association studies on breast and ovarian cancers are lacking in this population. Moreover, no case-control study is available on variant rs10937405 of TP63 in breast and ovarian cancers. Thus, we designed to replicate the cancer susceptible variant rs10937405 of TP63 in ovarian and breast cancers in the population of J&K because the TP63 gene act as a tumor suppressor gene and was previously associated with various cancers. Materials and Methods: This case-control association study conducted at the Shri Mata Vaishno Devi University, includes 150 breast, 150 ovarian cancer cases, and 210 healthy controls (age and sex-matched). Variant rs10937405 of the TP63 gene was determined by the TaqMan assay. Hardy-Weinberg equilibrium for the variant was assessed using the Chi-square test. The allele and genotype-specific risks were estimated by odds ratios (ORs) with 95% confidence intervals (CI). Results: In this study, variant rs10937405 of TP63 gene did not show any risk with ovarian and breast cancer with (P-value = 0.70) having OR 0.94, (0.69-1.28 at 95% CI) and (P-value = 0.16) having OR 0.80, (0.59-1.10). Discussion: Our results indicate that the variant rs10937405 of the TP63 gene did not impart any risk of breast and ovarian cancer in the population of J&K. Our results indicate that a larger sample size is needed for further statistical validation. As the study was for a particular variant, it warrants the analysis of other variants of this gene.


Assuntos
Neoplasias da Mama , Neoplasias Pulmonares , Neoplasias Ovarianas , Humanos , Feminino , Predisposição Genética para Doença , Neoplasias Pulmonares/genética , Polimorfismo Genético , Genótipo , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/genética , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/genética , Estudos de Casos e Controles , Polimorfismo de Nucleotídeo Único , Fatores de Transcrição/genética , Proteínas Supressoras de Tumor/genética
7.
Front Immunol ; 13: 864923, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36275678

RESUMO

Central nervous system (CNS) damage by galactic cosmic ray radiation is a major health risk for human deep space exploration. Simulated galactic cosmic rays or their components, especially high Z-high energy particles such as 56Fe ions, cause neurodegeneration and neuroinflammation in rodent models. CNS damage can be partially mediated by the blood-brain barrier, which regulates systemic interactions between CNS and the rest of the body. Astrocytes are major cellular regulators of blood-brain barrier permeability that also modulate neuroinflammation and neuronal health. However, astrocyte roles in regulating CNS and blood-brain barrier responses to space radiation remain little understood, especially in human tissue analogs. In this work, we used a novel high-throughput human organ-on-a-chip system to evaluate blood-brain barrier impairments and astrocyte functions 1-7 days after exposure to 600 MeV/n 56Fe particles and simplified simulated galactic cosmic rays. We show that simulated deep space radiation causes vascular permeability, oxidative stress, inflammation and delayed astrocyte activation in a pattern resembling CNS responses to brain injury. Furthermore, our results indicate that astrocytes have a dual role in regulating radiation responses: they exacerbate blood-brain barrier permeability acutely after irradiation, followed by switching to a more protective phenotype by reducing oxidative stress and pro-inflammatory cytokine and chemokine secretion during the subacute stage.


Assuntos
Astrócitos , Dispositivos Lab-On-A-Chip , Humanos , Íons , Citocinas , Quimiocinas
8.
Crit Rev Anal Chem ; : 1-35, 2022 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-35830363

RESUMO

Electrochemistry forms the base of large-scale production of various materials, encompassing numerous applications in metallurgical engineering, chemical engineering, electrical engineering, and material science. This field is important for energy harvesting applications, especially supercapacitors (SCs) and photovoltaic (PV) devices. This review examines various electrochemical techniques employed to fabricate and characterize PV devices and SCs. Fabricating these energy harvesting devices is carried out by electrochemical methods, including electroreduction, electrocoagulation, sol-gel process, hydrothermal growth, spray pyrolysis, template-assisted growth, and electrodeposition. The characterization techniques used are cyclic voltammetry, electrochemical impedance spectroscopy, photoelectrochemical characterization, galvanostatic charge-discharge, and I-V curve. A study on different recently reported materials is also presented to analyze their performance in various energy harvesting applications regarding their efficiency, fill factor, power density, and energy density. In addition, a comparative study of electrochemical fabrication techniques with others (including physical vapor deposition, mechanical milling, laser ablation, and centrifugal spinning) has been conducted. The various challenges of electrochemistry in PVs and SCs are also highlighted. This review also emphasizes the future perspectives of electrochemistry in energy harvesting applications.

10.
J Pediatr Endocrinol Metab ; 35(6): 827-830, 2022 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-35245009

RESUMO

OBJECTIVES: Feminizing adrenal tumors are rare in childhood. We present a case of a special category of adrenal tumor, an oncocytoma, causing isosexual peripheral precocity. CASE PRESENTATION: A 4-year old girl presented with breast development and menstrual bleeding over a period of 3-4 months. Her SMR staging was breast stage 4, pubic hair stage 3. Her bone age was advanced (6 year 10 months), stimulated LH 0.7 IU/L, estradiol 206 pmol/L and DHEAS >27.1 micromol/L. CT scan revealed a right adrenal mass with features of atypical adrenal adenoma. Laparoscopic adrenalectomy was done and histopathology revealed oncocytoma. Lin-Weiss-Bisceglia criteria classified it as likely benign, borne out till a 2 year follow up. CONCLUSIONS: Adrenal oncocytoma can be a cause of isosexual peripheral precocity in a young girl. Recognition and correct classification of this histological variant, which is more often benign, is important for prognostication and choice of therapy after surgery.


Assuntos
Adenoma Oxífilo , Adenoma , Neoplasias do Córtex Suprarrenal , Neoplasias das Glândulas Suprarrenais , Puberdade Precoce , Adenoma/complicações , Adenoma Oxífilo/complicações , Adenoma Oxífilo/diagnóstico , Adenoma Oxífilo/cirurgia , Neoplasias do Córtex Suprarrenal/complicações , Neoplasias do Córtex Suprarrenal/diagnóstico , Neoplasias do Córtex Suprarrenal/cirurgia , Neoplasias das Glândulas Suprarrenais/complicações , Neoplasias das Glândulas Suprarrenais/diagnóstico , Neoplasias das Glândulas Suprarrenais/cirurgia , Adrenalectomia , Pré-Escolar , Feminino , Humanos , Lactente , Puberdade Precoce/etiologia , Puberdade Precoce/patologia
11.
Genes Genet Syst ; 96(4): 187-191, 2021 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-34803080

RESUMO

Colorectal cancer (CRC), which includes the development of cancer from the colon or rectum, is one of the highly prevalent cancers in the populations of Jammu and Kashmir (J&K) in India. However, case-control genetic association studies on CRC are lacking in this population. Various genome-wide association studies have previously shown that single-nucleotide polymorphisms (SNPs) of the AT-rich interaction domain 5B (ARID5B) gene located on chromosome 10q21.2 contribute substantially to the development of colorectal cancer. The association between ARID5B and CRC risk in north Indian population groups is still unknown. To understand the role of ARID5B SNPs in CRC in the population of J&K, we designed a case-control study to investigate the association of the cancer susceptibility variant rs10740055 of ARID5B with CRC in the population of J&K. The study included 180 cases and 390 healthy controls. Genotyping of the rs10740055 variant was performed by RT-PCR using the TaqMan assay technique. Hardy-Weinberg equilibrium of the variant was assessed using the chi-squared test. The allele- and genotype-specific risks were estimated by odds ratios (ORs) with 95% confidence intervals (CIs). The rs10740055 variant showed a higher risk for colorectal cancer with an OR of 3.35 (1.99-5.65 at 95% CI) and P = 0.000005 corrected for age, gender, ethnicity, BMI, alcohol intake and smoking. Our results indicate that the A allele of rs10740055 imparts risk to the population and also that a larger sample size is needed for further statistical validation. The association of other variants in other ARID family genes should also be tested as their role cannot be ruled out.


Assuntos
Neoplasias Colorretais , Estudo de Associação Genômica Ampla , Estudos de Casos e Controles , Neoplasias Colorretais/genética , Proteínas de Ligação a DNA/genética , Predisposição Genética para Doença , Genótipo , Humanos , Índia , Polimorfismo de Nucleotídeo Único , Fatores de Transcrição/genética
12.
Cancer Epidemiol ; 75: 102047, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34655923

RESUMO

BACKGROUND: Non-small cell lung cancer (NSCLC) is the most common lung cancer, accounting for 80-85% of all lung cancer cases. Various genetic studies have associated REV3L (Protein reversion less 3-like) gene mutations, which encodes the catalytic subunit of error prone translesion synthesis polymerase zeta with cancer, including lung cancer; however, no such data is available from any North Indian population. In this study we attempted to screen the North Indian population of Jammu and Kashmir (J&K) for the potential role of REV3L gene polymorphisms in NSCLC. METHODS: A total of four REV3L single nucleotide variants were selected for genotyping based on the available literature. The genotyping was carried out by using the TaqMan allele discrimination assay in 500 subjects (200 NSCLC patients and 300 age and sex matched healthy controls). The association of variants with NSCLC was evaluated by logistic regression. RESULTS: Out of the four REV3L variants genotyped; rs1002481, rs462779, and rs465646 were found significantly associated with NSCLC risk under the recessive model, with an Odds Ratio (OR) of 3.52(2.14-5.8 at 95% CI, p-value = 0.00000062), 3.7 (1.8-7.6 at 95% CI, p-value = 0.00031), and 2.2 (1.47-3.37 at 95% CI, p-value = 0.0003), respectively. DISCUSSION: Our data supports a strong association between variants rs1002481, rs462779, rs465646 and NSCLC, indicating a potential role of these REV3L variants in increasing the risk for the development of NSCLC in the studied population. Although a first report from any Indian population, these variants have been previously reported to be associated with lung and colorectal cancers in different world populations. Our data along with the existing data supports the notation that these variants can be used as potential genetic predisposition markers. AVAILABILITY OF DATA AND MATERIALS: Data generated and analysed during study is not available publicly but can be made available from the corresponding author upon reasonable request.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Proteínas de Ligação a DNA , DNA Polimerase Dirigida por DNA , Neoplasias Pulmonares , Carcinoma Pulmonar de Células não Pequenas/epidemiologia , Carcinoma Pulmonar de Células não Pequenas/genética , Estudos de Casos e Controles , Proteínas de Ligação a DNA/genética , DNA Polimerase Dirigida por DNA/genética , Predisposição Genética para Doença , Humanos , Neoplasias Pulmonares/epidemiologia , Neoplasias Pulmonares/genética , Polimorfismo de Nucleotídeo Único
13.
Mol Biol Rep ; 48(8): 5889-5895, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34319543

RESUMO

BACKGROUND: SNP genotyping has become increasingly more common place to understand the genetic basis of complex diseases like cancer. SNP-genotyping through MassARRAY™ is a cost-effective method to quantitatively analyse the variation of gene expression in multiple samples, making it a potential tool to identify the underlying causes of colorectal carcinogenesis. METHODS: In the present study, SNP genotyping was carried out using Agena MassARRAY™, which is a cost-effective, robust, and sensitive method to analyse multiple SNPs simultaneously. We analysed 7 genes in 492 samples (100 cases and 392 controls) associated with CRC within the population of Jammu and Kashmir. These SNPs were selected based on their association with multiple cancers in literature. RESULTS: This is the first study to explore these SNPs with colorectal cancer within the J&K population.7 SNPs with a call rate of 90% were selected for the study. Out of these, five SNPs rs2234593, rs1799966, rs2229080, rs8034191, rs1042522 were found to be significantly associated with the current study under the allelic model with an Odds Ratio OR = 2.981(1.731-5.136 at 95% CI); p value = 4.81E-05 for rs2234593,OR = 1.685(1.073-2.647 at 95% CI);; p value = 0.02292 for rs1799966, OR = 1.5 (1.1-2.3 at 95% CI), p value = 0.02 for rs2229080, OR = 1.699(1.035-2.791 at 95% CI); p value = 0.03521 for rs8034191, OR = 20.07 (11.26-35.75); p value = 1.84E-34 for rs1042522 respectively. CONCLUSION: This is the first study to find the relation of Genetic variants with the colorectal cancer within the studied population using high throughput MassARRAY™ technology. It is further anticipated that the variants should be evaluated in other population groups that may aid in understanding the genetic complexity and bridge the missing heritability.


Assuntos
Neoplasias Colorretais/genética , Técnicas de Genotipagem/métodos , Adulto , Idoso , Alelos , Povo Asiático/genética , Estudos de Casos e Controles , Feminino , Predisposição Genética para Doença/genética , Testes Genéticos/métodos , Genótipo , Sequenciamento de Nucleotídeos em Larga Escala/métodos , Humanos , Índia , Masculino , Pessoa de Meia-Idade , Razão de Chances , Polimorfismo de Nucleotídeo Único/genética
14.
Sci Rep ; 11(1): 11291, 2021 05 28.
Artigo em Inglês | MEDLINE | ID: mdl-34050209

RESUMO

Lung cancer is genetically diverse and a major health burden. Non-small cell lung cancer (NSCLC) accounts for 80% of total lung cancer cases and 20% cases are Small cell lung cancer (SCLC). The present case-control association study focused on the cost effective high throughput genotyping using Agena MassARRAY matrix-assisted laser desorption/ionization-time of flight, mass spectrometry (MALDI-TOF) platform to analyze the genetic association of candidate genetic variants. We performed multiplex PCR and genotyped twelve single nucleotide polymorphisms (SNPs) in 723 samples (162 NSCLC cases and 592 healthy controls). These genetic variants were selected from literature for their association with various cancers worldwide and this is the first study from the region to examine these critically important genetic variants. With prospective case-control association study design, twelve variants from ten genes were evaluated. Amongst these six variants, TCF21 (rs12190287), ERCC1 (rs2298881, 11615), ERCC5 (rs751402), ARNTL (rs4757151), BRIP1 (rs4986764) showed significant association with NSCLC risk (p ≤ 0.003) in Jammu and Kashmir population. In-silico findings of these genetic variants showed remarkable functional roles that needs in-vitro validations. It is further anticipated that such case control studies will help us in understanding the missing heritability of non-small cell lung cancer.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/genética , Perfilação da Expressão Gênica/métodos , Alelos , Povo Asiático , Estudos de Casos e Controles , Expressão Gênica/genética , Frequência do Gene/genética , Estudos de Associação Genética/métodos , Predisposição Genética para Doença/genética , Variação Genética/genética , Genótipo , Humanos , Índia/epidemiologia , Neoplasias Pulmonares/genética , Polimorfismo de Nucleotídeo Único/genética , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz/métodos , Transcriptoma/genética
15.
J Biochem Mol Toxicol ; 35(7): e22792, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33928715

RESUMO

Leukemia is a heterogeneous disorder, characterized by elevated proliferation of white blood cells. In this study, we explored the association of 17 genetic variants with leukemia patients in the Jammu and Kashmir region of north India. The variants were genotyped by using a high-throughput Agena MassARRAY platform in 758 individuals (166 cases and 592 controls). Of the 17 single-nucleotide polymorphisms (SNPs) studied, five SNPs were showing significant association with the high risk of leukemia in the north Indian population, which includes rs10069690 of telomere reverse transcriptase (TERT) with OR = 0.34 (95% CI, 0.20-0.58; p = .0008), rs2972392 (​​​PSCA) with OR 1.86 (95% CI, 1.04-3.81; p = .035), rs4986764 (BRIP1) with OR 1.34 (95% CI, 1.00-1.80; p = .04), rs6990097 (TNKS) with OR 1.81 (95% CI, 1.2-2.6; p = .001) and rs12190287 (TCF21) with OR 2.87 (95% CI, 1.72-4.7; p = .0001) by allelic association using Plink and analyzed by SPSS. This is the first study to explore these variants with leukemia in the studied population.


Assuntos
Leucemia/genética , Proteínas de Neoplasias/genética , Polimorfismo de Nucleotídeo Único , Adulto , Idoso , Feminino , Humanos , Índia/epidemiologia , Leucemia/epidemiologia , Masculino , Pessoa de Meia-Idade
16.
J Cancer Res Ther ; 17(1): 46-50, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33723131

RESUMO

AIM: In this study, we evaluated the association of rs6964823 of the Ikaros Family Zinc Finger 1 (IKZF1) gene with the risk of colorectal cancer (CRC) within the population of Jammu and Kashmir (J and K). MATERIALS AND METHODS: The variant rs6964823 of the IKZF1 gene was genotyped using the TaqMan allele discrimination assay for 578 individuals (182 CRC cases and 396 healthy controls). The association of single-nucleotide polymorphisms with the disease was evaluated using logistic regression. RESULTS: It was observed that the variant rs6964823 (IKZF1) showed a significant association with an adjusted allelic odds ratio (OR) of 1.74 (1.34-2.27) at 95% confidence interval (CI), P ≤ 0.05. The dominant model (AA + AG vs. GG) was also applied, where the adjusted OR was 3.096 (2.011-4.76) at 95% CI, P > 0.05. CONCLUSIONS: It was found that the variant rs6964823 of the IKZF1 gene is associated with a higher risk of CRC within the population of J and K.


Assuntos
Neoplasias Colorretais/genética , Fator de Transcrição Ikaros/genética , Alelos , Estudos de Casos e Controles , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/patologia , Feminino , Predisposição Genética para Doença , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Polimorfismo de Nucleotídeo Único , Fatores de Risco
17.
Front Microbiol ; 12: 601713, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33692763

RESUMO

Whether terrestrial life can withstand the martian environment is of paramount interest for planetary protection measures and space exploration. To understand microbial survival potential in Mars-like conditions, several fungal and bacterial samples were launched in September 2019 on a large NASA scientific balloon flight to the middle stratosphere (∼38 km altitude) where radiation levels resembled values at the equatorial Mars surface. Fungal spores of Aspergillus niger and bacterial cells of Salinisphaera shabanensis, Staphylococcus capitis subsp. capitis, and Buttiauxella sp. MASE-IM-9 were launched inside the MARSBOx (Microbes in Atmosphere for Radiation, Survival, and Biological Outcomes Experiment) payload filled with an artificial martian atmosphere and pressure throughout the mission profile. The dried microorganisms were either exposed to full UV-VIS radiation (UV dose = 1148 kJ m-2) or were shielded from radiation. After the 5-h stratospheric exposure, samples were assayed for survival and metabolic changes. Spores from the fungus A. niger and cells from the Gram-(-) bacterium S. shabanensis were the most resistant with a 2- and 4-log reduction, respectively. Exposed Buttiauxella sp. MASE-IM-9 was completely inactivated (both with and without UV exposure) and S. capitis subsp. capitis only survived the UV shielded experimental condition (3-log reduction). Our results underscore a wide variation in survival phenotypes of spacecraft associated microorganisms and support the hypothesis that pigmented fungi may be resistant to the martian surface if inadvertently delivered by spacecraft missions.

18.
Afr Health Sci ; 21(3): 1243-1249, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35222588

RESUMO

BACKGROUND: The role of single nucleotide polymorphism rs10937405 (C>T) of the TP63 gene in cancer including leukemia has previously been studied in different world populations; however, the role of this variant in leukemia in the North Indian population of Jammu and Kashmir is still unknown. OBJECTIVES: In the present study, we investigated the association of genetic variant rs10937405 with leukemic in the Jammu and Kashmir population. METHODS: A total of 588 subjects, (188 cases and 400 controls) were recruited for the study. The rs10937405 variant was genotyped by using the real-time based TaqMan assay. RESULTS: A statistically significant association was observed between the rs10937405 and leukemia [OR of 1.94 (95% CI 1.51-2.48), p=1.2x10-6]. CONCLUSION: The current study concludes that the rs10937405 variant is a risk factor for the development of leukemia in the population of Jammu and Kashmir, North India. However, it would be interesting to explore the contribution of this variant in other cancers as well. Our findings will help in the development of diagnostic markers for leukemia in the studied population and potentially for other North Indian populations.


Assuntos
Predisposição Genética para Doença , Leucemia , Povo Asiático , Estudos de Casos e Controles , Genótipo , Humanos , Índia/epidemiologia , Leucemia/epidemiologia , Leucemia/genética , Polimorfismo de Nucleotídeo Único , Fatores de Transcrição/genética , Proteínas Supressoras de Tumor/genética
20.
Sci Rep ; 10(1): 21101, 2020 12 03.
Artigo em Inglês | MEDLINE | ID: mdl-33273524

RESUMO

Ovarian cancer (OC), a multifaceted and genetically heterogeneous malignancy is one of the most common cancers among women. The aim of the study is to unravel the genetic factors associated with OC and the extent of genetic heterogeneity in the populations of Jammu and Kashmir (J&K).Using the high throughput Agena MassARRAY platform, present case control study was designed which comprises 200 histopathological confirmed OC patients and 400 age and ethnicity matched healthy controls to ascertain the association of previously reported eleven single nucleotide polymorphisms (SNPs) spread over ten genes (DNMT3A, PIK3CA, FGFR2, GSTP1, ERCC5, AKT1, CASC16, CYP19A1, BCL2 and ERCC1) within the OC population of Jammu and Kashmir, India. The association of each variant was estimated using logistic regression analyses. Out of the 11 SNPs the odds ratio observed for three SNPs; rs2699887 was (1.72 at 95% CI: 1.19-2.48, p = 0.004), rs1695 was (1.87 at 95% CI: 1.28-2.71, p = 0.001), and rs2298881 was (0.66 at 95% CI: 0.46-0.96, p = 0.03) were found significantly associated with the OC after correction with confounding factors i.e. age & BMI. Furthermore, the estimation of interactive analyses was performed and odds ratio observed was 2.44 (1.72-3.47), p value < 0. 001 suggests that there was a strong existence of interplay between the selected genetic variants in OC, which demonstrate that interactive analysis highlights the role of gene-gene interaction that provides an insight among multiple little effects of various polymorphisms in OC.


Assuntos
Predisposição Genética para Doença , Variação Genética , Genoma Humano , Análise de Sequência com Séries de Oligonucleotídeos , Neoplasias Ovarianas/genética , Alelos , Estudos de Casos e Controles , Feminino , Frequência do Gene , Humanos , Pessoa de Meia-Idade , Anotação de Sequência Molecular , Polimorfismo de Nucleotídeo Único/genética
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