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Gc_Globulin, Vitamin D_Binding Protein, Clone 249_01, Mab anti_Human; ELISA_WB

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[#HYB249-01] Gc_Globulin, Vitamin D_Binding Protein, Clone 249_01, Mab anti_Human; ELISA_WB

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HYB249-01 | Gc_Globulin, Vitamin D_Binding Protein, Clone 249_01, Mab anti_Human; ELISA_WB , 200 µg.
More informations about Gc_Globulin, Vitamin D_Binding Protein, Clone 249_01, Mab anti_Human; ELISA_WB in Antibody-antibodies.com

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(1) Cubilin, the intrinsic factor-vitamin B12 receptor in development and disease.[TOP]

Pubmed ID :30295181
Publication Date : //
Gp280/Intrinsic factor-vitamin B12 receptor/Cubilin (CUBN) is a large endocytic receptor serving multiple functions in vitamin B12 homeostasis, renal reabsorption of protein or toxic substances including albumin, vitamin D-binding protein or cadmium.Cubilin is a peripheral membrane protein consisting of 8 epidermal growth factor (EGF)-like repeats and 27 CUB (defined as Complement C1r/C1s, Uegf, BMP1) domains. This structurally unique protein interacts with at least two molecular partners, amnionless (AMN) and Lrp2/Megalin. AMN is involved in appropriate plasma membrane transport of Cubilin whereas Lrp2 is essential for efficient internalization of Cubilin and its ligands. Observations gleaned from animal models with Cubn deficiency or human diseases demonstrate the importance of this protein. In this review addressed to basic research and medical scientists we summarize currently available data on Cubilin and its implication in renal and intestinal biology. We also discuss the role of Cubilin as a modulator of Fgf8 signaling during embryonic development and propose that the Cubilin-Fgf8 interaction may be relevant in human pathology, including in cancer progression, heart or neural tube defects. We finally provide experimental elements suggesting that some aspects of Cubilin physiology might be relevant in drug design.

Authors : Kozyraki Renata, Cases Olivier,



(2) Vitamin D Toxicity-A Clinical Perspective.[TOP]

Pubmed ID :30294301
Publication Date : //
Confusion, apathy, recurrent vomiting, abdominal pain, polyuria, polydipsia, and dehydration are the most often noted clinical symptoms of vitamin D toxicity (VDT; also called vitamin D intoxication or hypervitaminosis D). VDT and its clinical manifestation, severe hypercalcemia, are related to excessive long-term intake of vitamin D, malfunctions of the vitamin D metabolic pathway, or the existence of coincident disease that produces the active vitamin D metabolite locally. Although VDT is rare, the health effects can be serious if it is not promptly identified. Many forms of exogenous (iatrogenic) and endogenous VDT exist. Exogenous VDT is usually caused by the inadvertent or improper intake of extremely high doses of pharmacological preparations of vitamin D and is associated with hypercalcemia. Serum 25-hydroxyvitamin D [25(OH)D] concentrations higher than 150 ng/ml (375 nmol/l) are the hallmark of VDT due to vitamin D overdosing. Endogenous VDT may develop from excessive production of an active vitamin D metabolite - 1,25(OH)D in granulomatous disorders and in some lymphomas or from the reduced degradation of that metabolite in idiopathic infantile hypercalcemia. Endogenous VDT may also develop from an excessive production of 25(OH)D and 1,25(OH)D in congenital disorders, such as Williams-Beuren syndrome. Laboratory testing during routine clinical examinations may reveal asymptomatic hypercalcemia caused by the intake of vitamin D even in doses recommended for the general population and considered safe. That phenomenon, called hypersensitivity to vitamin D, reflects dysregulated vitamin D metabolism. Researchers have proposed many processes to explain VDT. Those processes include elevated activity of 1α-hydroxylase or inhibited activity of 24-hydroxylase, both leading to increased concentration of 1,25(OH)D; increased number of vitamin D receptors; and saturation of the capacity of vitamin D binding protein. Increased public awareness of vitamin D-related health benefits might increase the risk of VDT due to self-administration of vitamin D in doses higher then recommended for age and body weight or even higher than the established upper limit intake values. Consequently, the incidence of hypercalcemia due to hypervitaminosis D might increase.

Authors : Marcinowska-Suchowierska Ewa, Kupisz-Urbańska Małgorzata, Łukaszkiewicz Jacek, Płudowski Paweł, Jones Glenville,



(3) A draft genome of the striped catfish, Pangasianodon hypophthalmus, for comparative analysis of genes relevant to development and a resource for aquaculture improvement.[TOP]

Pubmed ID :30290758
Publication Date : //
The striped catfish, Pangasianodon hypophthalmus, is a freshwater and benthopelagic fish common in the Mekong River delta. Catfish constitute a valuable source of dietary protein. Therefore, they are cultured worldwide, and P. hypophthalmus is a food staple in the Mekong area. However, genetic information about the culture stock, is unavailable for breeding improvement, although genetics of the channel catfish, Ictalurus punctatus, has been reported. To acquire genome sequence data as a useful resource for marker-assisted breeding, we decoded a draft genome of P. hypophthalmus and performed comparative analyses.

Authors : Kim Oanh T P, Nguyen Phuong T, Shoguchi Eiichi, Hisata Kanako, Vo Thuy T B, Inoue Jun, Shinzato Chuya, Le Binh T N, Nishitsuji Koki, Kanda Miyuki, Nguyen Vu H, Nong Hai V, Satoh Noriyuki,



(4) Compromised Activation of Vitamin D After Elective Surgery: A Prospective Pilot Study.[TOP]

Pubmed ID :30283909
Publication Date : //
Surgical stress reduces concentrations of most proteins in serum and necessitates a rapid adjustment of hormones dependent on protein binding. Activation of vitamin D by renal 1α-hydroxylation is dependent on protein binding because 1,25-dihydroxyvitamin D (1,25(OH)D) is formed after megalin-mediated reabsorption of 25-hydroxyvitamin D (25OHD) bound to vitamin D binding protein (DBP). Postoperative alterations in serum concentrations of DBP and albumin may therefore impair 1,25(OH)D production. Our objective was to determine sex-specific changes in serum concentrations of vitamin D metabolites and sex steroids 2, 6, 24, and 48 hours and 3 weeks postoperatively. Fourteen women and eleven men aged 45 to 77 years without severe comorbidities undergoing unilateral total knee arthroplasty participated in this prospective study in a tertiary center for arthroplasty (trial ID: NCT02336932). The main outcome measures were total and free serum concentrations of 25OHD, 1,25(OH)D, 24,25-dihydroxyvitamin-D, DBP, albumin, sex hormone binding globulin (SHBG), calcium, and parathyroid hormone (PTH). Serum albumin and SHBG decreased postoperatively (Δalbumin -18% [-22%; -14%]). Unexpectedly, concentrations of DBP and 25OHD remained unaltered, but 1,25(OH)D declined postoperatively. 1,25(OH)D was 3 weeks after surgery -24% (-40%; -8%) lower than preoperative levels, whereas 24,25-dihydroxyvitamin-D remained unchanged in postmenopausal women. The calculated conversion rate of 25OHD to 1,25(OH)D was strongly associated with serum 25-OHD and PTH preoperatively, whereas serum calcium was most predictive postoperatively. In conclusion, surgery had no effect on serum concentrations of DBP, 25OHD, and PTH, whereas production of 1,25(OH)D was markedly reduced. Further studies are needed to determine duration and putative outcome effects of this postoperative 1,25(OH)D deficit in women, which in part may be due to discordance in CYP27B1 and CYP24A1 activity.

Authors : Blomberg Jensen Martin, Husted Henrik, Bjerrum Poul Jannik, Juul Anders, Kehlet Henrik,



(5) The hypolipidemic effects of Tamarindus indica fruit pulp extract in normal and diet-induced hypercholesterolemic hamsters are associated with altered levels of serum proteins.[TOP]

Pubmed ID :30280388
Publication Date : //
The hypolipidemic effects of Tamarindus indica fruit pulp extract (Ti-FPE) have been earlier reported but the underlying molecular mechanisms are still uncertain. In this study, hamsters fed with Ti-FPE, both in the absence and presence of high-cholesterol diet, were shown to have significantly reduced levels of serum triglyceride, LDL-C and total cholesterol. The Ti-FPE-fed non-hypercholesterolemic hamsters also showed significant enhanced levels of serum apolipoprotein A1, antithrombin III, transferrin and vitamin D binding protein. In diet-induced hypercholesterolemic hamsters, apolipoprotein A1, antithrombin III and transferrin, which were relatively low in levels, became significantly enhanced when the hamsters were fed with Ti-FPE. These Ti-FPE-fed hypercholesterolemic hamsters also showed significant higher levels of serum vitamin D binding protein. When the different treated groups of hamsters were analyzed for the levels of the four serum proteins by ELISA, similar altered abundance were detected. Ingenuity Pathway Analysis of the Ti-FPE modulated serum proteins singled out "Lipid metabolism, molecular transport, small molecule biochemistry" as the top network. Our results suggest that the hypolipidemic effects of Ti-FPE are associated with alterations of serum proteins that are known to be cardioprotective and involved in the metabolism of lipids. The MS data have been deposited to the ProteomeXchange Consortium with the dataset identifier PXD010232.

Authors : Lim Chor Yin, Junit Sarni Mat, Aziz Azlina Abdul, Jayapalan Jaime Jacqueline, Hashim Onn Haji,



(6) Longitudinal changes in serum vitamin D binding protein and free 25-hydroxyvitamin D in a multiracial cohort of pregnant adolescents.[TOP]

Pubmed ID :30278215
Publication Date : //
Serum free 25-hydroxyvitamin D (25(OH)D) rather than total 25(OH)D may better indicate vitamin D status during pregnancy given the pregnancy-associated increase in serum vitamin D binding protein (DBP) concentration. Our aims were to assess changes in DBP and free 25(OH)D across gestation and to determine whether free compared with total 25(OH)D more strongly correlates with markers of vitamin D and calcium metabolism during pregnancy. This ancillary study included 58 pregnant adolescents (53% African American, 47% White) who completed a vitamin D supplementation study in Rochester, NY. Blood was collected at entry, mid-study, and delivery (median 17, 29, and 40 weeks' gestation). Mixed-effects regression was used to test for differences in DBP, directly measured free 25(OH)D, and other serum markers by study visit and race. Free and total 25(OH)D were evaluated in relation to serum PTH, 1,25(OH)D, 24,25(OH)D, and calcium. The mean DBP concentration was above nonpregnant reference values at entry and increased across gestation (P < 0.0001). Total 25(OH)D explained most of the variance in free 25(OH)D (r ≥ 0.67; P < 0.0001). Holding total 25(OH)D constant, each 100 mg/L increase in DBP was associated with a 0.4 pg/mL decrease in free 25(OH)D (P < 0.01). The percent free 25(OH)D was inversely related to both DBP and total 25(OH)D at each visit. Regardless of race or visit, total 25(OH)D was a stronger correlate of PTH, 1,25(OH)D, and 24,25(OH)D, and neither total nor free 25(OH)D was related to serum calcium. African Americans had lower total 25(OH)D (P <  0.0001), but free 25(OH)D did not significantly differ by race (P =  0.2). In pregnant adolescents, DBP concentration was elevated and inversely associated with percent free 25(OH)D, but measured free 25(OH)D provided no advantage over total 25(OH)D as a predictor of PTH, 1,25(OH)D, 24,25(OH)D, or calcium. The clinical relevance of the small racial difference in percent free 25(OH)D requires further investigation.

Authors : Best Cora M, Pressman Eva K, Queenan Ruth Anne, Cooper Elizabeth, O'Brien Kimberly O,



(7) Alteration of Serum 25(OH) Vitamin D, Vitamin D Binding Protein, and C-reactive Protein Levels in Acute Leukemia Patients.[TOP]

Pubmed ID :30274014
Publication Date : //
Acute leukemia is a common hematologic malignancy with poorly differentiated leukocytes. Alteration of circulating vitamin D (VD) and its carrier vitamin D binding protein (VDBP) have been reported in certain types of cancers and may play a role in the course of the disease. Understanding of the status of serum VD and VDBP, as well as the acute phase protein C-reactive protein (CRP) levels in pre- and post-treatment of acute leukemia patients, may be helpful in the management of acute leukemia.

Authors : Jiang Liejun, Zhang Xiaomei, Chen Yanyun, Huo Xiaocong, Deng Shuang, Yang Xiafang, Luo Yu, Luo Yanfang, Lu Xiaoxu, Zhang Min, Huang Huayi,



(8) Correlation of vitamin D binding protein gene polymorphism and protein levels in chronic obstructive pulmonary disease compared with non-chronic obstructive pulmonary disease subjects.[TOP]

Pubmed ID :30259785
Publication Date : //
The risk of vitamin D binding protein (DBP) variations in chronic obstructive pulmonary disease (COPD) compared with non-COPD Thai males were investigated.

Authors : Chuaychoo Benjamas, Tungtrongchitr Rungsunn, Kriengsinyos Wantanee, Tuntipopipat Siriporn, On-Nom Nattira, Chupeerach Chaowanee,



(9) Novel biomarker signatures for idiopathic REM sleep behavior disorder: A proteomic and system biology approach.[TOP]

Pubmed ID :30258025
Publication Date : //
To perform a rigorous in-depth proteomics analysis to identify circulating biomarker signatures for idiopathic REM sleep behavior disorder (RBD), capable of providing new insights into the underlying pathogenic mechanisms and putative α-synuclein-related neurodegenerative processes.

Authors : Mondello Stefania, Kobeissy Firas, Mechref Yehia, Zhao Jingfu, Talih Farid R, Cosentino Filomena, Antelmi Elena, Moresco Monica, Plazzi Giuseppe, Ferri Raffaele,



(10) High-throughput genotyping of GC (vitamin D-binding protein) by melting analysis with locked nucleic acid-incorporating dual hybridization probe for improving mismatch discrimination.[TOP]

Pubmed ID :30253141
Publication Date : //

Authors : Ishige Takayuki, Satoh Mamoru, Itoga Sakae, Nishimura Motoi, Matsushita Kazuyuki, Nomura Fumio,