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( Ju Lan Chun ),( Han Tae Bang ),( Sang Yun Ji ),( Jin Young Jeong ),( Minji Kim ),( Byeonghyeon Kim ),( Sung Dae Lee ),( Yoo Kyung Lee ),( Kondreddy Eswar Reddy ),( Ki Hyun Kim ) 한국축산학회 2020 한국축산학회지 Vol.62 No.1
The pre-treatment condition affects on the element analysis of inductively coupled plasma (ICP). In this study the pre-treatment condition of ICP has been studied to quantify elements in dog’s hair. The hair samples were collected from twelve female Beagles by clipping them into 1 or 2 cm at the back neck. The qualitative and quantitative analysis of elements in hairs were performed by using ICP. By ICP nine elements were qualitatively detected and quantitatively analyzed (Ca, Cu, Fe, K, Mg, Na, P, Se, Zn). The measured amounts of elements were compared between 3 step and 2 step procedures which were with and without the acetone based washing step. The quantitative analysis showed that the concentrations of K, Na, P, and Se were significantly decreased in hair samples with acetone-based washing (p < 0.005 or 0.001) unlike those without the acetone-based washing. It implied that some minerals are lost by the acetone based washing during the sample preparation step. Therefore, the acetone based washing process is not suitable for quantifying elements in dog’s hair. In addition, the results of qualitative and quantitative analysis were compared. Although there was a difference in absolute values of elemental contents in hair, the results of qualitative and quantitative analysis were significantly correlated each other. This finding suggested that the results of qualitative analysis can be used to monitor elemental contents in dog’s hair.
Difference of gut microbiota composition based on the body condition scores in dogs
( Ju Lan Chun ),( Sang Yun Ji ),( Sung Dae Lee ),( Yoo Kyung Lee ),( Byeonghyeon Kim ),( Ki Hyun Kim ) 한국축산학회(구 한국동물자원과학회) 2020 한국축산학회지 Vol.62 No.2
Microorganism residing in the gut has been known to have important roles in the animal body. Microbes and host microenvironment are highly related with host’s health including energy metabolism and immune system. Moreover, it reported that gut microbiome is correlated with diseases like obesity in human and dogs. There have been many studies to identify and characterize microbes and their genes in human body. However, there was little information of microbiome in companion animals. Here, we investigated microbiota communities in feaces from twenty - four Beagles (aged 2 years old) and analyzed the taxonomy profile using metagenomics to study the difference among gut microbiome based on body condition score (BCS). gDNA was isolated from feaces, sequenced and clustered. Taxonomy profiling was performed based on the NCBI database. BCS was evaluated once a week according to the description provided by World Small Animal Veterinary Association. Firmicutes phylum was the most abundant followed by Bacteroidetes, Fusobacteria, Proteobacteria and Actinobacteria. That main microbiota in gut were differently distributed based on the BCS. Fusobacteria has been known to be associated with colon cancer in human. Interestingly, Fusobacteria was in the third level from the top in healthy dog’s gut microbiome. In addition, Fusobacteria was especially higher in overweight dogs which had 6 scales of BCS. Species Fusobacterium perfoetens was also more abundant when dogs were in BCS 6. It implied that F. perfoetens would be positively related with overweight in dogs. These finding would contribute to further studies of gut microbiome and their functions to improve dog’s diets and health condition.
A simple method to evaluate body condition score to maintain the optimal body weight in dogs
( Ju Lan Chun ),( Han Tae Bang ),( Sang Yun Ji ),( Jin Young Jeong ),( Minji Kim ),( Byeonghyeon Kim ),( Sung Dae Lee ),( Yoo Kyung Lee ),( Kondreddy Eswar Reddy ),( Ki Hyun Kim ) 한국축산학회 2019 한국축산학회지 Vol.61 No.6
Overweight and obesity induce serious health problems that exert negative effects on dog’s welfare. Body condition score (BCS) is a common method to evaluate the body fat mass in animals. By palpating and observing fats under the skin it is possible to predict animal’s body fat accumulation condition. BCS is also a useful tool to estimate body fat composition in dogs. However, BCS can be subjective when it was performed by non-professionals like pet’s owners. To develop a method to avoid the misevaluation of BCS twenty-four Beagles were enrolled and performed BCS evaluation. In addition, the length of chest and abdominal girths were measured. In correlation analysis, the sizes of chest and abdominal girth were significantly correlated with BCS. Especially, the difference and ratio of the chest and abdominal length were highly correlated with the BCS. With that, we suggested that this simple measurement of chest and abdominal girths by a measuring tape would be an effective method to estimate BCS scores in dogs that helps non-professionals to manage their own dog’s nutritional condition by monitoring body fat accumulation condition.
Lan Ting-Yuan,Lin Yen-Chun,Tseng Tai-Chung,Yang Hung-Chih,Kao Jui-Hung,Cheng Chiao-Feng,Lee Tai-Ju,Huang Shang-Chin,Lu Cheng-Hsun,Li Ko-Jen,Hsieh Song-Chou 거트앤리버 소화기연관학회협의회 2023 Gut and Liver Vol.17 No.2
Background/Aims: Rituximab is known to be associated with high hepatitis B virus (HBV) reactivation rate in patients with resolved HBV infection and hematologic malignancy. However, data regarding HBV reactivation (HBVr) in rheumatic patients receiving rituximab is limited. To assess the HBVr rate in hepatitis B surface antigen (HBsAg)-negative patients receiving rituximab for autoimmune diseases in a large real-world cohort. Methods: From March 2006 to December 2019, 900 patients with negative HBsAg receiving at least one cycle of rituximab for autoimmune diseases in a tertiary medical center in Taiwan were retrospectively reviewed. Clinical outcome and factors associated with HBVr were analyzed. Results: After a median follow-up period of 3.3 years, 21 patients developed HBVr, among whom 17 patients were positive for hepatitis B core antibody (anti-HBc) and four were negative. Thirteen patients had clinical hepatitis flare, while eight patients had HBsAg seroreversion without hepatitis. Old age, anti-HBc positivity, undetectable serum hepatitis B surface antibody level at rituximab initiation and a higher average rituximab dose were associated with a higher HBVr rate. There was no significant difference in the HBVr risk between rheumatoid arthritis and other autoimmune diseases. Among anti-HBc-negative patients, subjects without HBV vaccination at birth had an increased risk of HBVr (4/368, 1.1%) compared with those who received vaccination (0/126, 0%). Conclusions: In HBV endemic areas where occult HBV is prevalent, anti-HBc-negative patients, may still be at risk for HBVr after rituximab exposure. HBVr may still be considered in HBsAgnegative patients developing abnormal liver function after rituximab exposure, even in patients with negative anti-HBc.
<i>Bacillus ginsengisoli</i> sp. nov., isolated from soil of a ginseng field
Nguyen, Ngoc-Lan,Kim, Yeon-Ju,Hoang, Van-An,Min, Jin Woo,Liang, Zhi-qi,Yang, Deok-Chun International Union of Microbiological Societies 2013 International journal of systematic and evolutiona Vol.63 No.3
<P>A novel bacterial strain DCY53<SUP>T</SUP> was isolated from a soil sample from a ginseng field and was characterized using a polyphasic approach. Cells were Gram-reaction-positive, rod-shaped, endospore-forming and motile with flagella. The strain was aerobic, catalase- and oxidase-positive, optimum growth temperature and pH were 30–37 °C and 6.0–7.5, respectively. On the basis of 16S rRNA gene sequence analysis, strain DCY53<SUP>T</SUP> was shown to belong to the genus <I>Bacillus</I> and the closest phylogenetic relatives were <I>Bacillus pocheonensis</I> KCTC 13943<SUP>T</SUP> (98.3 %), <I>Bacillus bataviensis</I> LMG 21833<SUP>T</SUP> (98.0 %), <I>Bacillus soli</I> LMG 21838<SUP>T</SUP> (97.9 %), <I>Bacillus drentensis</I> LMG 21831<SUP>T</SUP> (97.8 %), <I>Bacillus niacini</I> DSM 2923<SUP>T</SUP> (97.8 %), <I>Bacillus novalis</I> LMG 21837<SUP>T</SUP> (97.7 %), <I>Bacillus vireti</I> LMG 21834<SUP>T</SUP> (97.6 %) and <I>Bacillus fumarioli</I> LMG 17489<SUP>T</SUP> (97.3 %). The DNA G+C content was 43.6 mol% and the predominant respiratory quinone was MK-7. The major fatty acids were iso-C<SUB>14 : 0</SUB>, iso-C<SUB>15 : 0</SUB>, iso-C<SUB>16 : 0</SUB> and anteiso-C<SUB>15 : 0</SUB>. The DNA–DNA relatedness with closest relatives was below 55 %. The results of the genotypic analysis in combination with chemotaxonomic and physiological data demonstrated that DCY53<SUP>T</SUP> represented a novel species within the genus <I>Bacillus</I>, for which we propose the name <I>Bacillus ginsengisoli</I>. The type strain is DCY53<SUP>T</SUP> ( = KCTC 13945<SUP>T</SUP> = JCM 17335<SUP>T</SUP>).</P>
Kim, Yeon-Ju,Nguyen, Ngoc-Lan,Weon, Hang-Yeon,Yang, Deok-Chun International Union of Microbiological Societies 2013 International journal of systematic and evolutiona Vol.63 No.3
<P>A Gram-negative bacterium, designated DCY13<SUP>T</SUP>, was isolated from soil of a ginseng field in South Korea. Comparative analysis of 16S rRNA gene sequences showed that strain DCY13<SUP>T</SUP> shared the highest sequence similarity (95.0 %) with <I>Sediminibacterium salmoneum</I> NBRC 103935<SUP>T</SUP> and 87.6–91.4 % sequence similarity with other members of the family <I>Chitinophagaceae</I>. Cells were non-spore-forming rods, catalase- and oxidase-positive, motile by gliding and facultatively anaerobic. The only respiratory quinone was menaquinone 7 (MK-7) and the major fatty acids were iso-C<SUB>17 : 0</SUB> 3-OH, iso-C<SUB>15 : 0</SUB> and iso-C<SUB>15 : 1</SUB> G. The G<I>+</I>C content of the genomic DNA was 47.5±1.0 mol%. In addition to phosphatidylethanolamine, the major polar lipids were two unidentified aminophospholipids, one unidentified aminolipid and three unidentified polar lipids. The major cell-wall sugars were ribose, xylose and galactose. It is proposed that strain DCY13<SUP>T</SUP> represents a novel species in the genus <I>Sediminibacterium</I>, for which the name <I>Sediminibacterium ginsengisoli</I> sp. nov. is proposed. The type strain is DCY13<SUP>T</SUP> ( = KCTC 12833<SUP>T</SUP> = JCM 15794<SUP>T</SUP> = DSM 22335<SUP>T</SUP>). Emended descriptions of the genus <I>Sediminibacterium</I> and of <I>Sediminibacterium salmoneum</I> are also proposed.</P>
Nguyen, Ngoc-Lan,Kim, Yeon-Ju,Hoang, Van An,Yang, Deok-Chun International Union of Microbiological Societies 2013 International journal of systematic and evolutiona Vol.63 No.8
<P>Strain DCY 63<SUP>T</SUP>, isolated from the rhizosphere of ginseng, was a Gram-reaction-negative, strictly aerobic, non-motile, catalase- and oxidase-positive rod. 16S rRNA gene sequence analysis revealed that strain DCY 63<SUP>T</SUP> belonged to the genus <I>Chryseobacterium</I> and was closely related to <I>Chryseobacterium indoltheticum</I> LMG 4025<SUP>T</SUP> (98.1 %), <I>Chryseobacterium ginsenosidimutans</I> THG 15<SUP>T</SUP> (98.0 %) and <I>Chryseobacterium scophthalmum</I> LMG 13028<SUP>T</SUP> (97.1 %). The major polar lipids of strain DCY 63<SUP>T</SUP> were phosphatidylethanolamine (PE), four unidentified aminolipids and three unidentified polar lipids, and the major fatty acids were iso-C<SUB>15 : 0</SUB>, iso<I>-</I>C<SUB>17 : 0</SUB> 3-OH, summed feature 3 (C<SUB>16 : 1</SUB>ω7<I>c</I> and/or C<SUB>16 : 1</SUB>ω6<I>c</I>) and summed feature 9 (iso-C<SUB>17 : 1</SUB>ω9<I>c</I> and/or C<SUB>16 : 0</SUB> 10-methyl). The predominant isoprenoid quinone of strain DCY 63<SUP>T</SUP> was MK-6 and the G+C content of the genomic DNA was 31.6 mol%. The DNA–DNA relatedness values between strain DCY 63<SUP>T</SUP> and <I>C. indoltheticum</I> LMG 4025<SUP>T</SUP>, <I>C. ginsenosidimutans</I> THG 15<SUP>T</SUP> and <I>C. scophthalmum</I> LMG 13028<SUP>T</SUP> were less than 30 %. On the basis of these data, strain DCY 63<SUP>T</SUP> is considered to represent a novel species of the genus <I>Chryseobacterium</I>, for which the name <I>Chryseobacterium</I> <I>ginsengisoli</I> sp. nov. is proposed. The type strain is DCY 63<SUP>T</SUP> ( = KCTC 23760<SUP>T</SUP> = JCM 18019<SUP>T</SUP>). An emended description of <I>Chryseobacterium gleum</I> is also proposed.</P>