• The Journal of Advanced Prosthodontics
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• v.10 no.2
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• pp.85-92
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• 2018

PURPOSE. This research evaluated clinical outcomes of two types of hydroxyapatite (HA)-coated implants: OT (Osstem TS III-HA, Osstem implant Co., Busan, Korea) and ZM (Zimmer TSV-HA, Zimmer dental, Carlsbad, USA). MATERIALS AND METHODS. The research was conducted on 303 implants (89 of OT, 214 of ZM), which were placed from January 16, 2010 to December 20, 2012. The prognosis was evaluated in terms of success rates, survival rates, annual marginal bone loss, and implant stability quotients (ISQ). The samples were classified into immediate, early, conventional, and delayed groups according to the loading time. RESULTS. Overall, there were no significant differences between OT and ZM in success rates, survival rates, and annual marginal bone loss, except for the result of secondary stability. OT showed $77.83{\pm}8.23ISQ$, which was marginally higher than $76.09{\pm}6.90ISQ$ of ZM (P<.05). In terms of healing periods, only immediate loading showed statistically significant differences (P<.05). Differences between OT and ZM were observed in terms of two indices, the annual marginal bone loss ($0.17{\pm}0.58mm/year$ < $0.45{\pm}0.80mm/year$) and secondary stability ($84.36{\pm}3.80ISQ$ > $82.48{\pm}3.69ISQ$) (P<.05). OT and ZM did not have any statistically significant differences in early, conventional, and delayed loading (P>.05). CONCLUSION. OT (97.75%) and ZM (98.50%) showed relatively good outcomes in terms of survival rates. In general, OT and ZM did not show statistically significant differences in most indices (P>.05), although OT performed marginally better than ZM in the immediate loading and 1-stage surgery (P<.05).

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.206.3-206
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• 2005

• Journal of Microbiology and Biotechnology
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• v.13 no.1
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• pp.90-98
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• 2003

In vivo $^31p$ Nuclear Magnetic Resonance ($^31p$NMR) and metabolic studies were carried out on an acetic acid tolerant mutant, Zymomonas mobilis $ZM4/Ac^R$, and compared to those of the parent strain, Z. mobilis ZM4, to evaluate possible mechanisms of acetic acid resistance. This investigation was initiated to determine whether or not the mutant strain might be used as a suitable recombinant host far ethanol production from lignocellulose hydrolysates containing various inhibitory compounds. $ZM4/Ac^R$ showed multiple resistance to other lignocellulosic toxic compounds such as syringaldehyde, furfural, hydroxymethyl furfural, vanillin, and vanillic acid. The mutant strain was resistant to higher concentrations of ethanol or lower pH in the presence of sodium acetate, compared to ZM4 which showed more additive inhibition. in vivo $^31p$ NMR studies revealed that intracellular acidification and de-energization were two mechanisms by which acetic acid exerted its inhibitory effect. For $ZM4/Ac^R$, the internal pH and the energy status were less affected by sodium acetate compared to the parent strain. This resistance to pH change and de-energization caused by acetic acid is a possible explanation for the development of resistance by this strain.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.47 no.2
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• pp.116-122
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• 2002

Dehydrins (LEA Dll proteins) are one of the typical families of plant proteins that accumulate in response to dehydration, cold stress, abscisic acid, or during seed maturation. A 1.3-kb cDNA was cloned from a cDNA expression library of 5-day-old germinating maize scutellums under drought stress. The deduced protein sequence indicated a dehydrin gene encoding SK$_3$ LEA protein typically expressed during cold acclimation, but not by drought stress in barley and wheat. Thus, it was named maize DEHYDRIN2 (ZmDhn2). It accumulates rapidly and highly in drought-stressed scutellum and leaf tissues at any stage, but not under cold stress. ZmDhn2 gene was transformed into Arabidopsis thaliana for functional analysis under drought condition. From electrolyte leakage test, no significant difference showed between wild type and transformants under normal growth condition, but the leakage level of electrolyte in wild type plants was about 3 times as high as that in the transformed plants under drought stress. It suggests that ZmDHN2 playa role in increasing drought tolerance.

• Journal of Society of Preventive Korean Medicine
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• v.19 no.1
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• pp.117-130
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• 2015

Objective : This study was designed to investigate the effects of non fermented Zizyphus. jujuba mixture (mixed fruit and leaf : ZM) and fermented Z. jujuba mixture(FZM) on fed high-fat diet induced hyperlipidemic rats for development medicinal food. Method : The extracts prepared for Zizyphus. jujuba mixture(ZM) and fermented Z. jujuba mixture(FZM) with Lactobacillus plantarum and Saccharomyces cerevisiae. Experimental group was divided into normal control group(NC group) and high fat diet groups. The high fat diet groups fed high fat diet 2 weeks after was sub-divided into high fat diet control group(HC group), high fat diet positive control group(HPC group), non fermented Z. jujuba mixture extract group(ZM group) and fermented Z. jujuba mixture extract group(FZM group). NC and HC group was orally administerd of 0.9% saline, HPC group administerd lovastatin diluted in 0.9% saline at a dose of 10 mg/kg BW, ZM and FZM groups was administerd each extracts diluted in 0.9% saline at a dose of 300 mg/kg BW once a day on a fixed time for 4 weeks. In the present study we measured organ weight, epididymal fat tissue weight, concentration of serum lipids, hepatic lipids, MDA contents in liver tissue and metabolic variables in serum. Results : ZM and FZM suppressed testis weight loss and FZM decreased epididymal fat tissue weight to level of NC group in high-fat diets. ZM and FZM did not influence on serum cholesterol level, but prominently decreased serum triglyceride concentration compared with HC group, and FZM diminished hepatic triglyceride same as serum. ZM and FZM did not impair liver and kidney function and influence positive effects through by suppression of elevation lipid level. Conclusion : These results suggested that Z. jujuba mixture(ZM, FZM) should be useful developing medicinal food for prevention and improvement of hyperlipidemia and FZM is more suitable agent than ZM.

• Anatomy and Cell Biology
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• v.57 no.2
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• pp.204-212
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• 2024

In the present study, anatomical assessment of zygomaticofacial foramina (ZFFs) and zygomatic canals communicating with ZFFs were performed using cadaver micro-computed tomography images. It was suggested that all ZFFs were located above the jugale (Ju)-zygomaxillare (Zm) line, which is the reference line connecting the Ju and Zm, and most were located in the zygomatic body area (ZBA). The anteroposterior position of the ZFF in the ZBA was within a middle to posterior region and was most often located slightly posteriorly in males and closer to the middle of the region in females. The mean distance from the Ju-Zm line to the ZFF in the ZBA was 12.36 mm (standard deviation [SD] 1.52 mm) in males and 11.48 mm (SD 1.61 mm) in females. In zygomatic canals communicating with ZFFs, most zygomatic canals were type I canals, communicating from the zygomaticoorbital foramen and harboring the zygomaticofacial nerve, and the others were type II canals, communicating from the zygomaticotemporal foramen and located near the posterior margin of the frontal process. These results provide useful anatomical information for preventing nerve injury during surgical procedures for zygomatic implant treatment.

• Archives of Plastic Surgery
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• v.40 no.4
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• pp.330-334
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• 2013

Background Ultrasound-aided fixation is a recently developed alternative method of treatment of zygomatico-maxillary (ZM) fracture, and it can resolve the problems of excessive torsion force and subsequent fractures of screws. We conducted this study to evaluate the clinical usefulness of ultrasound-aided fixation as compared with the conventional fixation method using a drill and an expander in patients with ZM fracture. Methods We conducted a retrospective study in 35 patients with ZM fracture who had been treated at our hospital during a period ranging from March of 2008 to December of 2010. We divided them into two groups: an ultrasound-aided fixation group, comprising 13 patients who underwent ultrasound-aided fixation (SonicWeld Rx, KLS Martin), and a conventional group, comprising 22 patients who underwent conventional fixation (Biosorb FX, Linvatec Biomaterials Ltd.). We compared such variables as sex, direction, age at operation, follow-up period, operation duration, number of fixed holes, and time to discharge between the two groups. Results The ultrasound-aided fixation reduced the operation duration by about 30 minutes as compared with that of conventional fixation. There was no significant difference in follow-up period, number of fixed holes, or time to discharge between the two groups. Furthermore, there were no complications in either group. Conclusions The ultrasound-aided fixation of fractured ZM bone using an absorbable implant system is safe and effective in promptly reducing the bone fracture and providing satisfactory cosmetic outcomes over time.

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.206.4-206
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• 2005

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.85-85
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• 2005

• Journal of Physiology & Pathology in Korean Medicine
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• v.24 no.5
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• pp.859-865
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• 2010

This study was performed to evaluate proximate composition and antioxidant activity in extracts from Zizyphus jujuba fruits (ZF), leaves (ZL), mixture of them (ZM) and fermented mixture (FZM) for development medicated food. The contents of total carbohydrate and free sugar in ZF were 82.37 and 64.18 g/100 g, highest contents among all the extracts. The contents of free sugar in ZL was 19.39 g/100 g, but FZM was 10.01 g/100 g lower than ZL. The concentrations of total polyphenolic compounds in 1 mg/$m{\ell}$ concentration were 90.96 ${\mu}g$/mg for ZL, 22.39 ${\mu}g$/mg for ZF, 83.67 ${\mu}g$/mg for ZM, 70.92 ${\mu}g$/mg for FZM. DPPH radical scavenging activity at 1 mg/$m{\ell}$ concentration was 51.07% for BHT, 46.32% for ZL, 39.54% for ZM, 34.68% for FZM. ZF did not express activity. SOD like activity at 1 mg/$m{\ell}$ concentration was 67.16% for BHT, 75.33% for ZL, 17.42% for ZF, 68.22% for ZM, 59.81% for FZM. The antioxidant activity of the fruits of Z. jujuba (ZF) prominently lower than that of the leaves (ZL), but a mixture of leaves and fruits enhanced the antioxidant activity. And fermentation is not enhanced the antioxidant activity of extracts Z. jujuba