Higher Genotype Frequency Research Articles

Detection of ABH Antigen in Sudanese Patients with Chronic Renal Failure in Shendi Town, Sudan

Background: Patients suffering from chronic renal failure have significant challenges in their social and economic lives. In Sudan, the annual incidence of chronic renal failure is between 70 and 140 cases per million, and until more is done to address this illness, the problem is likely to persist. Blood group types appear to be associated with secretor status and certain disorders, in addition to the main therapeutic significance of the ABO blood group to organ transplantation and blood transfusions. Objective: To determine the prevalence of ABO and secretor status, a descriptive cross-sectional study was carried out among Sudanese patients receiving hemodialysis for chronic renal failure disease at the kidney treatment and surgical center in Shendi City between August and December 2021. Materials and Methods: Fifty samples total from patients with chronic renal failure were taken; of these, 42% were female and 58% were male. Two milliliters of venous blood and three milliliters of saliva were collected in sterile containers and EDTA anticoagulant containers, respectively. Slides were used to do ABO grouping, and absorption inhibition was used to determine secretor status. Results: 44% of patients with CKD were blood group O, 38% were blood group A, 16% were blood group B, and 2% were blood group AB. The data also revealed that 68% of patients with CKD were non-secretors and 32% were secretors. According to the study, there was a decrease in the frequency of the Se gene compared to the Se gene. The homozygous genotype SeSe was found to be 3%, the heterozygous genotype Sese to be 29%, and the recessive genotype Sese to be 68%. Additionally, the blood groups O and A have a higher risk of renal failure. Conclusions: Blood group O was the highest frequency among patients receiving hemodialysis for chronic renal failure, followed by blood groups A and B, while blood group AB was the least prevalent. The non-secretors had a higher genotype frequency. Renal failure is more common among non-secretors.

Role of Insertion/Deletion Polymorphism for Angiotensin Converting Enzyme Gene in Hypertension

Insertion/deletion polymorphism of the angiotensin converting enzyme (ACE) gene is a key component of the Renin-Angiotensin-Aldosterone System (RAAS). It has been proposed as an independent factor for hypertension and other cardiovascular diseases. Consequently, it has been extensively studied in various populations. The aim of this study is to investigate I/D polymorphism of ACE gene and its connection to hypertension in population of Tuzla Canton (Bosnia & Herzegovina). The study included 60 hypertensive subjects and 60 healthy control subjects with no risk factors for hypertension. I/D polymorphism was genotyped by polymerase chain reaction followed by gel electrophoresis and data obtained were statistically analysed using Chi square test. Odd’s ratios were calculated with a 95% confidence interval. P-value < 0.05 was considered significant. Odd’s ratios were calculated with a 95% confidence interval. P-value <0.05 was considered significant. Higher frequency of genotype D/D and allele D was determined in subjects with hypertension compared to control subjects but there is no statistical significance (p>0.05). However, statistically significant association was found in compared groups of subjects with genotypes DD + ID, in regards to genotype I/I (p<0.05). The results indicate the conclusion that ACE I/D polymorphism cannot be considered the main risk factor for development of hypertension, but its influence should be investigated together with other genetic and acquired risk factors that are associated with hypertension. This research contributes to the on-going exploration of molecular-genetic associations with hypertension.

Correlation of N-acetyltransferase 2 genotype and acetylation status with plasma isoniazid concentration and its metabolic ratio in ethiopian tuberculosis patients

Unfavorable treatment outcomes for tuberculosis (TB) treatment might result from altered plasma exposure to antitubercular drugs in TB patients. The present study investigated the distribution of the N-Acetyltransferase 2 (NAT2) genotype, isoniazid acetylation status, genotype–phenotype concordance of NAT2, and isoniazid plasma exposure among Ethiopian tuberculosis patients. Blood samples were collected from newly diagnosed TB patients receiving a fixed dose combination of first-line antitubercular drugs daily. Genotyping of NAT2 was done using TaqMan drug metabolism assay. Isoniazid and its metabolite concentration were determined using validated liquid chromatography-tandem mass spectrometry (LC–MS/MS). A total of 120 patients (63 male and 57 female) were enrolled in this study. The mean daily dose of isoniazid was 4.71 mg/kg. The frequency of slow, intermediate, and fast NAT2 acetylators genotypes were 74.2%, 22.4%, and 3.3% respectively. The overall median isoniazid maximum plasma concentration (Cmax) was 4.77 µg/mL and the AUC0–7 h was 11.21 µg.h/mL. The median Cmax in slow, intermediate, and fast acetylators were 5.65, 3.44, and 2.47 μg/mL, respectively. The median AUC0–7 h hour in slow, intermediate, and fast acetylators were 13.1, 6.086, and 3.73 mg•h/L, respectively. The majority (87.5%) of the study participants achieved isoniazid Cmax of above 3 µg/mL, which is considered a lower limit for a favorable treatment outcome. There is 85% concordance between the NAT2 genotype and acetylation phenotypes. NAT2 genotype, female sex, and dose were independent predictors of Cmax and AUC0–7 h (p < 0.001). Our finding revealed that there is a high frequency of slow NAT2 genotypes. The plasma Cmax of isoniazid was higher in the female and slow acetylators genotype group. The overall target plasma isoniazid concentrations in Ethiopian tuberculosis patients were achieved in the majority of the patients. Therefore, it is important to monitor adverse drug reactions and the use of a higher dose of isoniazid should be closely monitored.

Correlations of Interleukin-6 (IL-6) ( G174C and G572C ) gene polymorphisms and sera levels with risk of Coronary Artery Disease in Thi – Qar province

The present study was carried out in the labs of Technical Institute –Al-Nasiriyah /Community Health Department and Nasiriyah Heart Center in Thi- Qar province, during the period of research was extended from January to July 2022 . The aim of study was to determination polymorphisms of IL-6 gene in patients with Coronary Artery Disease and measuring its levels in serum using a technique enzyme-linked immune sorbent adsorptive (ELISA). The study included a total of 100 Iraqi patients with coronary artery disease(CAD) and healthy control group their age between 3-85 years. DNA has been isolated and PCR was performed by using primers specific for genotypes of IL-6 gene (572 C/G and 174 C/G), the results showed that gel electrophoresis for amplified IL-6 gene of CAD patients, gel electrophoresis of 167bp (IL-6 572C/G) PCR products and 198bp PCR product(IL-6 174C/G). Frequency of genotypes for the IL6 gene showed a high frequency of GG genotype compared to the GC and CC genotypes in all study groups , the frequency of G and C allele in IL6 gene was 95 % and 5 %, respectively with significant differences between genotypes in various groups, in the patient group (90 %) had GC genotype, (10%) were heterozygote and had (0%) had CC genotype compare with control group, (100%) had GC genotype, (0%) were heterozygote and had (0%) had CC genotype. The immunological study showed that there was a significant increase of concentrations of (IL-6) in patients compared to the healthy control group. Thus it seems There is no correlation between IL-6 gene polymorphisms and the risk of coronary artery disease in Thi- Qar province and the Serological Assay (ELISA) showed a significant increase in the concentration of IL-6 in patients with coronary artery disease compared with the healthy control group.

High Frequency of HPV Genotypes 16 and 18 Found in Breast Cancer Patients: Evidence for a More Comprehensive HPV Vaccination Program in Iran

Background &amp; Objectives: Papillomaviruses are found in many different types of infections and in a wide range of animals and humans. They can cause health problems, including benign and malignant tumors. In the present study, the association between human papillomavirus (HPV) infection and breast cancer (BC) in Iran was investigated.&#x0D; Materials &amp; Methods: In this cross-sectional study, the presence of the HPV genome was investigated in BC-suspected tissues for the first time in Qom Province, Iran. A total of 400 samples (including 200 BC-suspected tissue samples and 200 blood samples of women without BC) were collected from women referred to two cancer-specific general hospitals. To determine the presence of the L1 gene of HPV in the collected samples, nested polymerase chain reaction (PCR) was performed. Then, HPV-positive samples were tested by PCR using high-risk specific HPV-16 and 18 primers.&#x0D; Results: Out of 200 BC-suspected tissue samples, 172 were malignant (in terms of pathology). Based on the nested PCR method, the L1 gene of HPV was detected in 12% (24/200) of the BC-suspected tissue samples and in 1.5% (3/200) of the blood samples from women without BC. The high-risk HPV genotypes (which were the predominant types) were present in 75% of the samples.&#x0D; Conclusion: The results of the current study show a high frequency of HPV-16 and 18 genotypes in human BC in Iranian women. This is almost certainly due to poor rates of HPV vaccination, and it is strongly recommended that health organizations (such as the World Health Organization [WHO]) ensure adequate coverage of highly effective HPV vaccination in Iran.

Association of Infl ammatory Bowel Disease and Tumor Necrosis Factor-863 C/A Polymorphism in Iraq

Background: The underlying causes of infl ammatory bowel disease (IBD) are unknown, but they are thought to be a combination of genetics, environmental factors, abnormal immune responses, and disruption of the gut microbiota. This study aims to investigate the eff ect of tumor necrosis factor-alpha (TNF-α) -863 C/A(rs 1800630) single nucleotide polymorphism (SNP) in infl ammatory bowel patients and it is relation with the patient’s clinical characteristics. Methods: The study was conducted on 74 blood samples from patients of IBD including 47 patients with ulcerative colitis (UC) and 27 patients with Crohn’s disease (CD) in addition to 20 blood samples apparently healthy individuals, TNF-α-863 C&gt;A genotype was screened by PCR and Sanger sequencing techniques. Results: The results showed that the homozygous CC genotype frequency was the higher genotype frequency in 45/60 (75%) for IBD patients with less than 50 years ages compared with 7/14 (50%) the IBD patients with more than 50 years, signifi cant high association OD (CI): 2.75 (1.38–4.08), The allelic C frequency in ulcerative colitis (UC) patients was (0.83) and signifi cantly higher than the A allele frequency (0.17) and it may act as risk factor infl ammatory disease. The homozygous CC genotype of the TNF-α-863 gene was 9/27 (70.37%) in CD patients compared with 6/20 (30%) in the control group with high signifi cant diff erences (p ≤ 0.01, OR=1.00). Signifi cant diff erences also applied for the heterozygous CA genotype in -863 SNP,it was 8/27 (29.62%) compared with the control group 14/20 (70%) the odds ratio (2.62), while the homozygous AA genotype frequency showed no signifi cant association with CD (p -1.00). Conclusion: The frequency of homozygous CC genotype of the TNF-α-863 gene was higer in CD patients than in the control group with signifi cant diff erences. Signifi cant diff erences also applied for the heterozygous CA genotype while the three genotypes (CC, CA and AA) of the TNF-α-863 gene showed non-signifi cant diff erences in ulcerative patients in comparison with the control.

Analysis of the TSER and G>C variants in the TYMS gene: a high frequency of low expression genotypes predicted in the Mexican population

Background In the TYMS gene promoter, there is a repeat polymorphism (TSER) that affects the expression level of the thymidylate synthetase (TS) enzyme involved in the response to some anticancer drugs. The G>C transversion located in the TSER*3R allele decreases the expression level of the TS enzyme avoiding the upstream stimulatory factor (USF-1) binding site. Despite the biomedical impact of the SNP G>C, only TSER has been reported in most worldwide populations. Thus, we studied both TSER and SNP G>C variants in the Mexican population. Subjects and methods A population sample (n = 156) was genotyped for the TSER and G>C variants by PCR and PCR-RFLPs, respectively, followed by PAGE and silver staining. Results For TSER, the most frequent allele was 2 R (52.56%), as well as the genotype 2 R/3R (42.3%). Comparison with Latin American, European, and American (USA) populations suggest a heterogeneous worldwide distribution (FST-value = 0.01564; p-value = 0.0000). When the G>C variant was included (2RG, 3RG, and 3RC), a high frequency of low expression genotypes was observed: 2RG/2RG, 2RG/3RC, and 3RC/3RC (84.6%). Conclusion The high frequency of genotypes associated with low TS enzyme expression justifies obtaining the TYMS gene variant profile in Mexican patient’s candidates to pharmaceutical treatments like 5’-Fluoracil, methotrexate, and pemetrex.

Association between single-nucleotide polymorphisms in ARID4A gene and sperm quality of Chinese water buffalo

ARID4A (AT-rich interaction domain 4A) is closely related to animal sperm quality traits. In the present study, the association between ARID4A gene polymorphisms of Chinese water buffalo (Bubalus bubalis) with sperm quality traits was examined, including ejaculate volume, sperm concentration, post-thaw sperm motility, and sperm abnormality of buffalo semen. Seven single-nucleotide polymorphisms (SNPs) of ARID4A gene were detected in 156 Chinese water buffaloes by Sanger sequencing and identifying overlap peaks. Among the SNPs, six were associated with at least one sperm quality trait. In brief, g.21192G&gt;C, g.21285C&gt;G, and g.21364A&gt;G could be used as potential markers for selecting semen with low sperm abnormality, high ejaculate volume, sperm concentration, and sperm motility. Furthermore, 10 haplotypes (H1: -CTCGG, H2: GTGGCA, H3: GCGGCA, H4: GCTGCA, H5: GCTCGA, H6: GTGGGG, H7: GCTCCG, H8: -CGGGA, H9: GCGGCG, and H10: GTTGCA) were formed by the six SNPs through linkage disequilibrium analysis, and then 14 different combined haplotypes were collected. Correlation analysis showed that the combined H1H2 haplotype had the highest genotype frequency. Notably, the combined H1H2 haplotype had low sperm concentration, low sperm motility, and high sperm abnormality. The combined H2H3 haplotype could be used as a potential molecular marker for selecting semen with high sperm motility. In general, we illustrated a significant correlation between SNPs in ARID4A and sperm quality traits of Chinese water buffalo, which may be useful in the marker-assisted selection of buffalo breeding. This study was the first to analyze the genetic polymorphisms of ARID4A and association with sperm qualities of Chinese buffalo.

High abundance of high-risk Human Papillomavirus genotypes in wastewater in Uruguay.

The aim of this study was to determine the frequency of Human Papillomavirus (HPV) genotypes in wastewater of Salto city, Uruguay, in order to obtain a general overview of the circulating genotypes in their population. HPV was detected in 34% (32/93) of the wastewater samples collected and analyzed during 2020/21 in Salto city, Uruguay. Thirty-three genotypes were observed, of which 16 presented read abundance higher than 1%, including both high-risk (HR) and low-risk (LR) genotypes. HR genotypes 31, 16, 58, 52, 33 and 59 were detected representing 40% (163,220 reads) of the total read abundance, with genotypes 31 (64,365), 16 (39,337) and 58 (36,332) being the most abundant. LR genotypes 72, 6, 11 and 40 were also detected in a high frequency, accounting for 37% (148,359) of the HPV reads. This study highlights the high frequency of HR genotypes of HPV, circulating in the population of Salto city which is a burden in public health mainly due to the devastating impact of cervical cancer in women.

Association of Forkhead Box O3a (FOXO3a) single – nucleotide polymorphism with bronchial asthma in Egyptian population

Asthma is a common chronic inflammatory condition with a highly complex genetic predisposition and environmental factors which play an important role in its development. Polymorphism in FOXO3a transcription factor has been linked to a number of inflammatory and respiratory diseases such as bronchiolitis and idiopathic pulmonary fibrosis suggesting that it may be implicated in the pathogenesis of asthma. This study aimed to investigate FOXO3a SNP (rs13217795) association with bronchial asthma and its degree of severity in adult Egyptian population. This case control study included 60 asthmatic patients and 40 apparently healthy controls. Peripheral blood samples were collected from all participants. Genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The study revealed high frequency of the mutant TT genotype of FOXO3a gene in asthma patients (51.7%) than controls (12.5%) with OR= 7.48 & 95% CI (2.58-21.71) (P˂0.05) and in severe cases (41.9%) compared to mild and moderate cases (25.8% and12.5%, respectively). T allele frequency showed significant statistical association with asthma, OR= 12.40, 95% CI (5.65-27.19) (P˂0.05). However, there was no association between T allele and disease severity. The high frequency of the mutant TT genotype among patients and sever cases may indicates that FOXO3a rs13217795 C>T single nucleotide polymorphism can be considered as a risk factor in development and severity of asthma.

Investigation of FTO Gene-BMI Association in a Romanian Sample: a Functional Genomic Interpretation

Previously, we reported the results of an investigation regarding the FTO gene variant rs 1421085 association with BMI in a randomly selected Romanian sample, which showed a statistically relevant relationship. However, the small sample volume could not permit highlighting the hypothesized age factor role; the scarce literature information did not permit comments regarding the functional link between gene variation and BMI values. The actual work recapitulated the BMI-FTO association on an extended sample volume to 167, added the FTOrs17817449 variant, which has been reported in LD with the initial genotype, and approached a different statistical analysis (both of the separate and combined genotypes). The new results statistically confirmed the positive BMI-FTO association (p=0.018 and p=0.03 for each genotype rs1421085 and rs17817449, respectively p=0.03 for combined genotypes T/G and T/C, respectively); also, the age factor analysis showed the greater the age (after 40), the more tendency to gain weight (χ2=8.63). The observed high frequency of the risk rs1421805 genotype in our population and the age factor role in the FTO-BMI association are commented in the view of the newly emerged hypothesis regarding the climate influence on human migration during evolution and FTO polymorphic genotype distribution globally. Recent literature reports on the complex chromatin structure of the FTO locus, which environmental factors may influence, and on the FTO protein activity as an m6A demethylase are used in interpreting the biological role of this gene in adipose tissue formation, its maintenance, and lipolysis processes.

Circulating microRNA-122 in HCV cirrhotic patients with high frequency of genotype 3.

MicroRNA-122 (miR-122) is a liver abundant microRNA that is released upon liver injury. In the present study, we investigated the circulating miR-122 profiles in a Pakistani patients´ cohort with HCV chronic liver disease that was mainly based on HCV genotype 3 infections. From 222 patients with chronic HCV liver disease, classified as mild, moderate, or severe, serum samples were collected. Cell-free RNA was isolated and used for miR-122 quantification by qPCR. More than 60% of 222 patients were infected with HCV genotype 3. ALT values and HCV viral load showed no correlation with the HCV genotype. Circulating miR-122 levels were significantly upregulated in patients with cirrhosis. Notably, HCV patients with mild cirrhosis showed the most marked increase in serum miR-122 levels (p = 0.0001). Furthermore, we proved a positive correlation (r = 0.46) of miR-122 with the ALT values in patients with mild cirrhosis. Importantly, our data of increased miR-122 levels in serum samples obtained from a patient cohort with a high prevalence of chronic genotype 3 HCV infection confirmed the previous findings collected from cohorts with a high prevalence of genotype 1. Therefore, we suggest that miR-122 increase after HCV infection does not depend on the HCV genotype. In conclusion, our findings confirm that serum miR-122 levels are significantly upregulated in the HCV cirrhotic patients serving in particular as a biomarker for the non-advanced stages of cirrhosis, independently of the HCV genotype.

Detection of insecticide susceptibility and target-site mutations in field populations of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Fall armyworm, Spodoptera frugiperda (J. E. Smith), is an economically important pest throughout the world. At present, the control of S. frugiperda in China largely relies on the application of chemical insecticides. In this study, the susceptibility of nine field populations of S. frugiperda to eight recommended insecticides was evaluated by using the diet-overlay method. The results indicated that spinetoram, lufenuron, and emamectin benzoate exhibited high acute toxicity to S. frugiperda, whereas chlorantraniliprole, indoxacarb, tetrachlorantraniliprole, chlorfenapyr, and lambda-cyhalothrin exhibited relatively low toxicity. Two site mutations (A201S and F290V) of the Ace-1 gene were identified from the field populations, the R allele frequencies of A201S and F290V ranged from 5.0% to 29.6% and 21.2% to 67.3%, respectively. In addition, the resistant homozygote F290V was detected in the field, with the highest genotype frequency of 40.0% in the JZ population. However, no site mutation in VGSC was detected in any tested field population of S. frugiperda. These results provide valuable information for the selection of insecticides and are helpful for insecticide resistance management of S. frugiperda.

A1/A2 Milk Research in Indian Cattle

Bovine beta casein A1 and A2 are the most common variants in cattle breeds. Because of the bioactive peptide beta casomorphin-7 (BCM7) produced by raw or processed A1-milk, which has high affinity for opioid receptors and can exert regulatory activities, A1 variant is considered a risk factor for many human diseases, but not by A2-milk, during digestion. The frequency of A1/A2 allele of beta casein is breed dependent and can be very easily checked with simple PCR-RFLP technique. The aim of this article was to review the different studies and assess the status of A1/A2 in Indian native cattle breeds as well as crossbred/taurine populations and breeding bulls being used at different AI centres in India. Analysis of frequency pattern clearly indicated that all Indian native cattle breeds have high frequency of A2 allele and homozygous A2A2 genotype and hence are very good resource for A2 milk. Crossbred, taurine cattle populations and breeding bulls being used at different AI centres have a higher frequency of A2 allele and A1A2 genotype. The percentage of animals with homozygous A2A2 genotype is low. This suggests the need for screening of crossbred/exotic bulls being used in A1 and modify the existing breeding policy so as to drift the herds towards A2.

Stromal Derived Factor-1 Gene Polymorphism in Pediatric Immune Thrombocytopenia.

Immune thrombocytopenia (ITP) is a multifactorial disease in which both environmental and genetic factors have been implicated. The study aimed to investigate a possible association of single nucleotide polymorphisms (SNPs rs266085 and rs2839693) in the stromal derived factor-1 (SDF-1) gene and its association to ITP and effect on ITP severity and response to treatment. Genomic DNA was extracted from peripheral blood and polymorphism in SDF-1 gene rs266085 and rs2839693 was analyzed using PCR-restriction fragment length polymorphism technique in DNA extracted from 60 children with ITP together with 90 healthy controls. On analysis of SDF-1 rs266085 polymorphism, there was a high frequency of CC genotype in cases than controls and that difference was significant at codominant, overdominant, and dominant models (P<0.05). Furthermore, carriers of the CC genotype were more susceptible to severe ITP at onset, steroid dependency, and chronicity than carriers of other genotypes (P<0.05). Otherwise, no significant differences between ITP patients and controls as regard SDF-1 rs2839693 genotypes and alleles, and we did not find a relation between this polymorphism and ITP severity, steroid dependency, or duration. SDF-1 gene rs266085 SNP C allele is associated with susceptibility to develop ITP as well as increases the risk for severe ITP at onset, chronic ITP and steroid dependency.

Association of Two MMP-8 Gene Polymorphisms With Recurrent Pregnancy Loss in Iranian Women

Background: It has been reported that less than 5% of women experience recurrent pregnancy loss (RPL). different matrix metalloproteinases (MMPs) have proteolysis function with a main role in the stable development of the fetus. Objective: This study aims to assess the associations between two single nucleotide polymorphisms (rs2509013 C&gt;T and rs11225395 G&gt;A) of MMP-8 gene and RPL among 130 Iranian women with a history of RPL and 130 controls. Methods: Genotyping of the MMP-8 gene was done for the two polymorphisms by using Sanger sequencing method. Results: High frequency of AA genotype (OR: 2.5, 95%CI:1.02-4.1, P&lt;0.01) and A allele (OR:1.95, 95% CI:0.95-3.1, P&lt;0.001) of rs11225395 G&gt;A polymorphism in patients compared to controls. This high frequency was also reported in the haplotypes and combined genotypes of polymorphism. Conclusion: The MMP-8 gene may be involved in RPL risk and is a potential biomarker for RPL susceptibility.

A multi-center retrospective cohort study defines the spectrum of kidney pathology in Coronavirus 2019 Disease (COVID-19)

Kidney failure is common in patients with Coronavirus Disease-19 (COVID-19), resulting in increased morbidity and mortality. In an international collaboration, 284 kidney biopsies were evaluated to improve understanding of kidney disease in COVID-19. Diagnoses were compared to five years of 63,575 native biopsies prior to the pandemic and 13,955 allograft biopsies to identify diseases that have increased in patients with COVID-19. Genotyping for APOL1 G1 and G2 alleles was performed in 107 African American and Hispanic patients. Immunohistochemistry for SARS-CoV-2 was utilized to assess direct viral infection in 273 cases along with clinical information at the time of biopsy. The leading indication for native biopsy was acute kidney injury (45.4%), followed by proteinuria with or without concurrent acute kidney injury (42.6%). There were more African American patients (44.6%) than patients of other ethnicities. The most common diagnosis in native biopsies was collapsing glomerulopathy (25.8%), which was associated with high-risk APOL1 genotypes in 91.7% of cases. Compared to the five-year biopsy database, the frequency of myoglobin cast nephropathy and proliferative glomerulonephritis with monoclonal IgG deposits was also increased in patients with COVID-19 (3.3% and 1.7%, respectively), while there was a reduced frequency of chronic conditions (including diabetes mellitus, IgA nephropathy, and arterionephrosclerosis) as the primary diagnosis. In transplants, the leading indication was acute kidney injury (86.4%), for which rejection was the predominant diagnosis (61.4%). Direct SARS-CoV-2 viral infection was not identified. Thus, our multi-center large case series identified kidney diseases that disproportionately affect patients with COVID-19 and demonstrated a high frequency of APOL1 high-risk genotypes within this group, with no evidence of direct viral infection within the kidney.

Relevance of Interleukins 6 and 8 Single Nucleotide Polymorphisms in Prostate Cancer: A Multicenter Study.

The diverse roles of cytokines as IL-6 and IL-8 have been studied in terms of their SNPs in many diseases but their role in prostate cancer (PCa) is still uncertain. Aim. To determine the relevance of IL-6 rs1800795 SNP and/or IL-8 rs2227306 SNP with prostate cancer's risk. Subjects and Methods. 40 PCa patients, 40 benign prostate hyperplasia (BPH) patients, and 40-age-matched-control group were enrolled in the study. Genotyping of IL-6 rs1800795 (G/C) SNP and IL-8 rs2227306 (C/T) SNP was determined using real-time PCR. Results. High frequency of IL-6 rs1800795GG and IL-8 rs2227306CC genotypes was noticed among PCa patients with associated OR 10.091 and 8.143, respectively. Comparisons based on allele frequencies revealed that IL-6G and IL-8C alleles are more frequent among PCa patients than other groups. Presence of IL-6 rs1800795G and IL-8 rs2227306C alleles in the same patient increase PCa risk by 16.7 times. Statistical correlations between PSA ratio and both of IL-6 and IL-8 SNP did not show any significant relation among PCa patients. Conclusion. IL-6 rs1800795G and IL-8 rs2227306C alleles could be considered risk factors for PCa development, particularly if presented together. However, no relation was found between both cytokines SNP and severity of prostate cancer.

Genotyping of Deltamethrin Resistance in Rhipicephalus (Boophilus) microplus Population in Kerala, South India.

Genotyping of Rhipicephalus (Boophilus) microplus for polymorphisms in deltamethrin-resistant loci of sodium channel gene by allele-specific PCR (AS-PCR). Adult R. (B.) microplus ticks were collected from naturally infested cattle in Kerala. The larval packet test (LPT) was performed with deltamethrin and dose response data were analysed by probit method. Adult and larval tick DNA were amplified by PCR and later sequenced to identify mutations, if any, in the domain II S4-5 linker and domain III S6 regions in para voltage-gated sodium channel gene, at loci that were previously documented to be associated with deltamethrin resistance. Allele-specific PCR was performed for the amplification of target gene locus (C190A and T2134C) to genotype 1000 larvae each, at these loci. Genotype frequency was statistically analysed by Chi-square test. Bioassay using LPT revealed that LC50 and LC95 values of all the R. (B.) microplus isolates in this study were more than double the reported values of reference susceptible strain. Sequence analysis of the PCR amplicons of domain II S4-5 linker of voltage-gated sodium channel gene revealed C190A mutation, A271G mutation as well as A-G mutation at 217th position. AS-PCR done to genotype C190A mutations revealed a frequency of 6%, 15% and 64%, respectively for homozygous-susceptible (SS), heterozygous (RS) and homozygous-resistant (RR) genotypes. In domain III S6 region of the gene, C2121T and A2102T mutations were observed. AS-PCR to genotype the previously reported T2134C mutation revealed 100% SS genotype in R. (B.) microplus isolates of Kerala. Genotyping of R. (B.) microplus isolates of Kerala for target site mutations reportedly associated with deltamethrin resistance revealed a significantly high frequency of resistant genotypes at II S4-5 linker of voltage-gated sodium channel gene. This study forms the first report of such mutations in Kerala, south India and demands serious attention in the light of increased prevalence of tick-borne haemoparasitic infection.

Polymorphism and Expression of HSD17β13 Gene and Its Association with Lamb Quality of Indonesian Sheep

HSD17β13 (17beta 13-Hydroxysteroid dehydrogenases) are important enzymes in steroid metabolism. This study investigated the polymorphisms and expression of the HSD17β13 gene in lamb quality traits in Indonesian sheep. A total of 200 of rams of seven breeds administered in the study were Javanese fat-tailed (JFT), Javanese thin-tailed (JTT), Garut sheep (GS), Jonggol sheep (JS), Garut composite sheep (GCS), Compass agrinac sheep (CAS), Barbados cross sheep (BCS) aged 10-12 months and weighed 20-30 kg. The Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) and MspI enzyme restriction were performed to identify the polymorphism of the HSD17β13 gene. The lamb quality traits were measured for physical quality, flavor, odor, and fatty acid composition. The results showed that the HSD17β13 gene was polymorphic and had three genotypes i.e., CC, CT, and TT. The highest genotype frequency was the CC when compared to the other genotypes. The allele frequency of HSD17β13 gene was not in Hardy Weinberg Equilibrium. The polymorphism of HSD17β13 gene was significantly (P&lt;0.05) associated with the fatty acid composition and Saturated Fatty Acid (SFA), i.e., tridecanoic acid (C13:0), arachidic acid (C20:0), henecosanoic acid (C21:0), and tricosanoic acid (C23:0). The polymorphism was also significantly associated with the Monounsaturated Fatty Acid (MUFA) i.e. ginkgoleic acid (C17:1) and nervonoic acid (C24:1), and Polyunsaturated Fatty Acid (PUFA) i.e. eicosedienoic acid (C20:2). The level of expression of the HSD17β13 gene based on quantitative real time-PCR analysis results was not significantly different (P&gt;0.05) among genotypes for lamb quality traits. It can be concluded that the polymorphism of HSD17β13 gene was associated with the fatty acid composition of lamb in Indonesian sheep.