Isochromosome 11q in patients with acute myeloid leukemia is rarely reported, and little is known about its main features. The presence of isochromosome 11q was identified in four patients (three adults and one child) from screening 441 patients with an acute myeloid leukemia diagnosis between 2009 and 2018 by using R-banding and fluorescence in situ hybridization. The child, patient 1 with unreported isochromosome (partial 11q isochromosome), accompanied with t(1;11) translocation, initially achieved remission after receiving chemotherapy. However, 4 months later this patient experienced a relapse. While multiple treatments were tried, it had no effect and the patient survived for 16 months. The remaining patients with isochromosome 11q exhibited numerical/structural chromosomal abnormal-ities involving myelodysplastic syndrome-related chromosomes 5, 7, 8, and 20. In patients 2 and 3, we found a derivative chromosome 21. Patient 3 was newly diagnosed with acute myeloid leukemia and was treated with mans, both of them may be associated with a failure to respond to treatment and poor outcomes. Hence, these discoveries may lay a foundation to study mechanisms and explore treatments. The disturbed pleiotropic functions of vitamin D are related to numerous chronic non-skeletal diseases. The role of vitamin D insufficiency/deficiency in cardiovascular diseases (CVD) is controversial. Therefore, the aim was to study the vitamin D status in CVD patients and to reveal possible relationships with CVD risk factors. This prospective study includes 93 individuals devided into two groups - patients with CVD (n = 49) and patients at risk for CVD (n = 44) served as controls. The CVD-patients were stratified into AF-group - with paroxysmal or persistent atrial fibrillation and HF-group - with heart failure with preserved ejection fraction, in sinus rhythm. Vitamin D status was assessed by measurement of serum 25-hydroxy-vitamin D (25OHD) using liquid chromatography with mass detection. Gene expression of the regulatory enzyme of vitamin D metabolism, 1-alfa-hydroxylase (CYP27B1), was evaluated by two-step real-time qPCR. Coronary artery calcium scans were performed and coronary artery calcium scorregulated with both the severity of CVD pathology (p = 0.05) and coronary calcium accumulation (p = 0.08). Moreover, we found a significant positive relationship (p = 0.041) between serum 25OHD levels and CYP27B1 gene expression. Vitamin D deficiency may be an independent cardiovascular risk factor associated with the severity of CVD pathology and increased coronary calcium deposition. The mechanism by which vitamin D itself can affect cardiovascular outcomes remains to be clarified. Vitamin D deficiency may be an independent cardiovascular risk factor associated with the severity of CVD pathology and increased coronary calcium deposition. The mechanism by which vitamin D itself can affect cardiovascular outcomes remains to be clarified. Pancreatic cancer (PC) is one of the most lethal malignant tumors with no valid biomarkers for early diagnosis. We evaluated the value of PD-1, PD-L1, PD-L2, CD28, B7-1, and B7-H5 for diagnosing PC. We measured serum soluble PD-1, PD-L1, PD-L2, CD28, B7-1, and B7-H5, and serum carbohydrate antigen (CA)19-9 levels in 87 patients with PC, 27 patients with benign pancreatic disease, and 20 healthy volunteers. We evaluated the diagnostic value of CA19-9, PD-1, PD-L1, PD-L2, CD28, B7-1, B7-H5. Patients with PC had significantly higher serum CA19-9, PD-L1, PD-L2, and B7-H5. Combined detection (CA19-9 + PD-L1 + PD-L2 + B7-H5) had much higher sensitivity than single CA19-9 detection. Serum soluble PD-L1, PD-L2, and B7-H5 might be novel potential biomarkers for diagnosing PC; their combination with serum CA19-9 might improve diagnostic sensitivity and specificity. Serum soluble PD-L1, PD-L2, and B7-H5 might be novel potential biomarkers for diagnosing PC; their combination with serum CA19-9 might improve diagnostic sensitivity and specificity. Vitamin D acts as immunomodulatory molecule and its deficiency has been implicated in various autoimmune diseases including immune mediated hypothyroidism. However, its association with thyroid hormones is ambiguous. The present study was therefore aimed to explore the relationship of vitamin D with thyroid hormone levels in a population enrolled for health care check up in a tertiary care hospital. The present cross-sectional study included 664 subjects. https://www.selleckchem.com/products/semaglutide.html Serum levels of 25(OH) vitamin D, free triiodothyronine, free thyroxine, and thyroid stimulating hormone (TSH) were measured. Serum vitamin 25(OH)D levels < 30 ng/mL and > 30 ng/mL were considered as vitamin D insufficient and vitamin D sufficient state, respectively. Vitamin D insufficiency was greater in females (89.6%) than in males (78.5%). Females were observed to have significantly lower serum 25(OH)D levels (18.7 ± 9.5 versus 20.62 ± 10.2 ng/mL) and higher serum TSH values (2.5 ± 1.25 versus 2.25 ± 1.16 mIU/L) as compared to males. The serum TSH level in the vitamin D sufficiency group were significantly lower than those in the vitamin D insufficiency group (2.39 ± 1.22 versus 2.12 ± 1.1 mIU/ L). Further, age was the only significant predictor of TSH levels. Meanwhile, no predictor was identified for vitamin D levels. Although no association was observed between TSH and vitamin D levels, TSH was observed to be significantly higher in the vitamin D insufficient group than the vitamin D sufficient group. It warrants further studies to ascertain the role of vitamin D in regulating thyroid hormones considering the thyroid autoimmune status of the individuals as well. Although no association was observed between TSH and vitamin D levels, TSH was observed to be significantly higher in the vitamin D insufficient group than the vitamin D sufficient group. It warrants further studies to ascertain the role of vitamin D in regulating thyroid hormones considering the thyroid autoimmune status of the individuals as well. The Kell blood group system has different types of antigens, which have immunogenic properties; therefore, it is considered as the third clinically significant blood group in blood transfusion. Patients that lack Kell antigen may produce antibodies that may cause transfusion reaction. This study is the first report on Kell antigen system distribution in blood donors in Makkah city which is important to improve transfusion services. Therefore, the aim of the current study is to determine the distribution of Kell antigens and phenotypes among blood donors in Makkah city, Saudi Arabia. This is a retrospective study to determine the prevalence of Kell antigens among blood donors, who come to donate blood in Al Noor specialist hospital, Makkah city. The sample size was 150 donors with a minimum age of 18 years. The most common Kell antigens were k antigen (96%) and Kpb (98%), while the less common were K antigen (18.7%) and Kpa (3.3%). The two most common Kell phenotypes are Kp(a-b+) (95%) and K-k+ (79.3%), while the two least common Kell phenotypes are Kp(a-b-) (1.