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BackgroundBone fragility and an increase in susceptibility to fracture osteoporosis is characterized by a reduction in bone mass and the micro-architectural deterioration of bone tissue. There is no previous study regarding the effect of Cinnamomum burmanini Blume on osteoporosis.ObjectiveThis study was aimed to investigate the effect of C. burmanini Blume on bone turnover marker, mineral elements, and mesostructure of ovariectomized rats.Materials and methodsThirty female Wistar rats were randomly divided into five groups, which included a control group (sham surgery), ovariectomy group (OVX), and ovariectomy groups in the presence of ethanolic extract of C. burmanini Blume (EECB) at doses of 12.5; 25; 50 mg/kg body weight (BW). Analysis of serum C-telopeptide collagen type I (CTX) and osteocalcin (OC) were done by enzyme-linked immunosorbent assay (ELISA). Tibia mineral elements and mesostructure were analyzed by X-ray Fluorescence and Scanning Electron Microscopy, respectively. In silico study was performed by modeling protein structure using SWISS-MODEL server and Ramachandran plot analysis.ResultsThe increase in OC and CTX were significantly attenuated by treatments of EECB. Ovariectomy significantly decreased Cu/Zn ratio compared to sham-operated rats (p < 0.05). Mesostructure of ovariectomized rats was significantly different compared with the control group.ConclusionCinnamon was able to normalize bone turnover markers, but, the mesostructure of hydroxyapatite crystal growth was achieved at the highest dose extract. In silico study showed that the active compound of EECB could not only support osteoclastogenesis process by decreasing the binding energy between RANKL and RANK, but also by inhibiting the interaction between OPG and RANK.

Induced pluripotent stem cells (iPSCs) offer an invaluable tool for biological research and regenerative medicine. We report establishment of rat iPSCs (riPSCs) using a plasmid vector encoding four transcription factors, Oct3/4, Sox2, c-Myc and Klf4. Although all riPSC clones were generated and cultured under the same conditions, expressed hallmark pluripotency markers and differentiated successfully in vitro, the expression of a keratan sulfate glycan epitope with unique properties defined by R-10G antibody varied in the riPSC clones. In contrast, tumor rejection antigen (TRA)-1-81 epitope expression was comparable. A clone highly reactive to R-10G antibody formed teratomas in vivo consisting of cells from all three germ layers. However, clones expressing a lower level of the epitope defined by R-10G resulted in tumors with rapid growth consisting of undifferentiated cells. Additionally, riPSCs could be successfully differentiated into a neuronal lineage including glutamate neurons that responded to agonist stimulation. These observations demonstrate a glycophenotypic difference that may potentially serve as a useful probe for riPSC evaluation and to study the role of glycans in pluri potency and carcinogenesis in these cells. Key words induced pluripotent stem cell; teratoma; R-10G antibody; glycobiologyThe generation of induced pluripotent stem cells (iPSC) by the forced expression of the exogenous transcription factors, Oct3/4, Sox2, c-Myc and Klf4, in mouse embryonic fibroblasts (MEFs) by Yamanaka's group paved way for a new era in stem cell research and regenerative medicine.1,2) Using reprogramming factors, iPSC have been successfully generated from humans and other mammalian species such as the rat [3][4][5] and monkey.1)The rat is utilized vastly as a model in pharmacology, toxicology, immunology research fields and behavioral science and has been useful in modeling human neural and cardiac system diseases.2) Rat iPSC lines have been derived from a variety of somatic cells mainly via viral transduction of reprogramming factors.3,4) The successful generation of transgenic rats using riPSC shows great promise in their use. 5)Variation in iPSC properties are widely reported 6) and definitive evaluation systems to assess riPSC pluripotency, differentiation propensity and potential for tumorigenesis still remain a challenge to the field. Glycans are considered to be ideal targets for identifying and analyzing cellular phenotype and cell surface epitopes such as stage-specific embryonic antigens (SSEA)-3/4 and tumor rejection antigen (TRA)-1-60/81 are conventionally used to evaluate pluripotency. However, these epitopes are also expressed in embryonal carcinoma (EC) cells. 7,8) In previous work, we generated the monoclonal antibody, R-10G, which recognizes a keratan sulfate epitope with unique structure on podocalyxin in human iPSC and human embryonal stem (ES) cells. 9) Notably, however, the antibody did not react with human EC cells that are known to be of a tumorigenic nature.Here we describe generation of...

Sebagian besar masyarakat masih belum mengetahui manfaat yang terkandung pada susu kambing, masyarakat masih menganggap bahwa susu sapi merupakan satu-satunya sumber nutrisi hewani yang memiliki kandungan protein, gizi, dan manfaat yang sangat besar bagi kesehatan. Untuk itu perlu dilakukan sosialisasi tentang pemanfaatan susu kambing karena kurangnya pengetahuan masyarakat sehingga menyebabkan rendahnya daya beli masyarakat. Tujuan dari kegiatan ini adalah untuk menjalin rintisan kerjasama dengan sekolah sebagai salah satu tempat pemasaran produk susu kambing serta orang tua siswa-siswi dalam meningkatkan daya konsumen masyarakat terhadap susu kambing dan memberikan informasi yang berlandaskan data ilmiah tentang manfaat susu kambing. Sosialisasi dilaksanakan melalui pemaparan pemateri tentang manfaat dan pentingnya mengonsumsi susu kambing dalam kehidupan sehari-hari serta pemanfaatan susu kambing menjadi produk nutrisi sehat (susu kambing pasteurisasi). Hasil dari kegiatan sosialisasi adalah para guru dan siswa-siswi bertambah pengetahuannya tentang pentingnya mengonsumsi susu kambing sebagai pangan sehat bernutrisi dan antusias dalam membuat produk-produk sehat berbahan dasar susu kambing.

Allele-specific polymerase chain reaction (ASPCR) method has long been applied for the detection of nucleotide variations and genotyping, which are detected by the presence or absence of DNA amplification PCR products. Recently, Real-Time PCR genotyping has fast developed and offered a rapid method of detecting mutations without the need of gel electrophoresis as with ASPCR. Here, we describe an easy and rapid touchdown real-time PCR method for the detection of nucleotide variations. Using our method we successfully detect two main mutations in human urate transporter 1 (SLC22A12), W258X and R90H, and validate the results. The method can potentially be applied to genotype of various other nucleotide variations.

Skeletal muscles display sexually dimorphic features. Biochemically, glycolysis and fatty acid β-oxidation occur preferentially in the muscles of males and females, respectively. However, the mechanisms of the selective utilization of these fuels remains elusive. Here, we obtain transcriptomes from quadriceps type IIB fibers of untreated, gonadectomized, and sex steroid-treated mice of both sexes. Analyses of the transcriptomes unveil two genes, Pfkfb3 (phosphofructokinase-2) and Pdk4 (pyruvate dehydrogenase kinase 4), that may function as switches between the two sexually dimorphic metabolic pathways. Interestingly, Pfkfb3 and Pdk4 show male-enriched and estradiol-enhanced expression, respectively. Moreover, the contribution of these genes to sexually dimorphic metabolism is demonstrated by knockdown studies with cultured type IIB muscle fibers. Considering that skeletal muscles as a whole are the largest energy-consuming organs, our results provide insights into energy metabolism in the two sexes, during the estrus cycle in women, and under pathological conditions involving skeletal muscles.

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