Abstract Background Ankylosing spondylitis (AS) has been known to have auto-inflammatory nature; hence, the efficacy of autoantibodies is low. However, studies on autoantibodies are ongoing, with some studies showing associations. Previous studies showed that anti-protein phosphatase magnesium-dependent 1A (PPM1A) IgG was increased in patients with AS and associated with radiographic progression. However, the diagnostic usefulness was limited due to relatively low sensitivity and specificity. This pilot study evaluated the diagnostic utility of anti-PPM1A-IgM and anti-PPM1A-IgG in patients with active AS. Methods Serum samples were obtained from the registry cohort of a single tertiary center in Korea. Serum levels of anti-PPM1A-IgG/IgM were measured by direct ELISA. Receiver operating characteristic (ROC) analysis was used to predict the diagnostic sensitivity and specificity of serum anti-PPM1A-IgG/IgM. Results Samples were collected from 28 patients with active AS, 16 healthy controls (HCs), and 28 patients with rheumatoid arthritis (RA). Although total serum IgM was lower in the RA and AS groups than in the HC group, anti-PPM1A-IgM was significantly lower in the AS group than in the other groups. In evaluating the diagnostic utility of anti-PPM1A-IgG/IgM for AS patients compared with HCs, the area under the curve (AUC) of anti-PPM1A-IgM was 0.998 (sensitivity 96.4%, specificity 100.0%). When ROC analysis of anti-PPM1A-IgM for AS patients compared with RA patients was conducted, sensitivity was 78.6% and specificity was 71.4%, with an AUC of 0.839. Conclusion Decreased anti-PPM1A-IgM levels in AS patients suggests a potential role for anti-PPM1A-IgM in the diagnosis of active AS. (AS autoinflammatory auto inflammatory nature hence However ongoing associations antiprotein anti protein magnesiumdependent magnesium dependent A PPM1A PPMA PPM (PPM1A progression antiPPM1AIgM antiPPMAIgM antiPPM1AIgG antiPPMAIgG Korea antiPPM1AIgG/IgM antiPPM1AIgGIgM antiPPMAIgGIgM IgG/IgM ELISA (ROC antiPPM1AIgG/IgM. IgG/IgM. 2 1 HCs , (HCs) RA. . (RA) (AUC 0998 0 998 0.99 964 96 4 96.4% 100.0%. 1000 100.0% 100 100.0%) conducted 786 78 6 78.6 714 71 71.4% 0839 839 0.839 antiPPM AIgM AIgG AIgGIgM IgGIgM (HCs (RA 099 99 0.9 9 96.4 100.0 10 7 78. 71.4 083 83 0.83 09 0. 96. 100. 71. 08 8 0.8

Abstract Introduction: Propofol is a widely used anesthetic and its dose is closely related to aging. Telomere length (TL) is a unique heritable trait, and emerging as a biomarker of aging, health and disease. Telomerase RNA component (TERC) plays an important role in maintaining TL. We proposed a hypothesis that propofol dose in general anesthesia can be predicted by measuring TL before operation, which greatly reduced the risk of anesthesia, especially the elderly. Methods: The association between the propofol dose in anesthesia induction and: TL in the DNA of peripheral blood leukocytes; body weight; sex; difference of the Bispectral Index (BIS) before and after anesthesia induction in patients was evaluated by multivariable linear regression analyses. The mutation at the 5’end or 3’end of TERC was detected. We recruited 100 patients of elective surgery. Results: We found that propofol dose in anesthesia induction was clearly correlated significantly with TL (r = 0.78, p < 0.001), body weight (r = 0.84, p = 0.004), sex (r = 0.83, p= 0.84, p = 0.004), sex (r = 0.83, p = 0.004), and difference of BIS before and after anesthesia induction (r = 0.85, p = 0.029). By comparing the absolute values of standardized regression coefficients (0.58, 0.21, 0.19, and 0.12) of the four variables, it can be seen that TL contributes the most to the propofol dose in anesthesia induction. However, the mutation at the 5’ end or 3’ end of TERC was not found. Conclusions: These findings provide preliminary evidence that the propofol dose in anesthesia induction was clearly correlated with genetically determined TL. TL may be a promising predictor of the propofol dose, which is beneficial to improve the safety of anesthesia and reduce perioperative complications. Introduction aging (TL trait disease (TERC operation elderly Methods leukocytes (BIS analyses 5end 5 3end 3 detected 10 surgery Results r 078 0 78 0.78 0.001, 0001 0.001 , 001 0.001) 084 84 0.84 0.004, 0004 0.004 004 0.004) 083 83 0.83 085 85 0.85 0.029. 0029 0.029 . 029 0.029) 0.58, 058 58 (0.58 021 21 0.21 019 19 0.19 0.12 012 12 variables However Conclusions complications 1 07 7 0.7 000 0.00 00 08 8 0.8 002 0.02 02 0.58 05 (0.5 2 0.2 01 0.1 0. 0.0 0.5 (0. (0 (

ABSTRACT This experiment was conducted to investigate the effects of lactic acid bacteria preparations on microbial diversity and community structure of calves. On days 1 and 7 of the trial period, feces were collected into sterile tubes and labeled (Day 1: control group D1DZ, experimental group D1SY, and Day 7: control group D7DZ, experimental group D7SY). Twenty Angus calves (150±10 kg) were selected and randomly divided into two groups of 10 calves each. The control group fed a basal diet. In addition to feeding the basal diet, the experimental group was given 15 mL lactobacillus preparation orally at 09:00 and 16:00 h every day. Calves were allowed free feeding and drinking water. All other feeding environments and management conditions remained consistent with the experiment lasting for seven days. At the end of the experiment, the fecal microflora of the calves was analyzed using 16S rRNA sequencing techniques. The 16S rRNA analysis data were processed using the Excel 2007 software and analyzed by the IBM SPSS statistical software (Statistical Analysis System, version 22). The Alpha diversity index analysis showed that the Chao and the Ace indices were significantly different after feeding supplemented with lactic acid bacteria. The PCA analysis showed that the fecal flora structure differed significantly after supplementation with the lactic acid bacteria preparation. Further analysis showed that the lactic acid bacteria increased Firmicutes, Patescibacteria, Rikenellaceae_RC9_gut_group, Clostridium_sensu_stricto_1, and prevotellaceae_UCG-003 in the feces. Therefore, we speculate that lactic acid bacteria preparations play an important role in animal production and are beneficial to the diversity of the fecal microflora of the calves. period D1DZ DDZ D DZ D1SY DSY SY D7DZ D7SY. D7SY . D7SY) 150±10 15010 150 (150±1 kg each diet 0900 09 00 09:0 1600 16 16:0 day water S techniques 200 Statistical System 22. 22 22) Firmicutes Patescibacteria RikenellaceaeRC9gutgroup RikenellaceaeRCgutgroup Rikenellaceae RC9 gut RC Rikenellaceae_RC9_gut_group Clostridiumsensustricto1 Clostridiumsensustricto Clostridium sensu stricto Clostridium_sensu_stricto_1 prevotellaceae_UCG003 prevotellaceaeUCG003 prevotellaceaeUCG prevotellaceae_UCG 003 prevotellaceae UCG prevotellaceae_UCG-00 Therefore 150±1 1501 (150± 090 0 09: 160 16: 20 2 RikenellaceaeRC gutgroup Clostridium_sensu_stricto_ UCG003 prevotellaceae_UCG00 prevotellaceaeUCG00 prevotellaceae_UCG-0 150± (150 Clostridium_sensu_stricto UCG00 prevotellaceae_UCG0 prevotellaceaeUCG0 prevotellaceae_UCG- (15 UCG0 (1 (

SUMMARY: The skin, located on the outermost part of the body, is always exposed to external stimuli such as sunlight. The exposure of skin to ultraviolet B (UVB) radiation from sunlight is known to be a major environmental factor in inducing photoaging. After exposure to UVB, an increase in reactive oxygen species can affect the expression and activity of many critical proteins depending on the duration and dose of the UVB radiation. Mammalian sirtuins (SIRTs), which are nicotinamide dinucleotide-dependent protein deacetylases, are well known for playing a role in cellular longevity. However, little is known about SIRT protein alterations in keratinocytes upon UVB irradiation according to SIRT subtypes. Therefore, in this study, the distribution of non-mitochondrial SIRT1, SIRT2, and SIRT6 proteins was investigated by immunofluorescence (IF) staining of the skin of SKH-1 mice (n=12) after UVB irradiation for 10 weeks. After UVB irradiation for 10 weeks, the IF of both SIRT1 and SIRT6 was significantly increased in the UVB-irradiated mice group (UG), but the difference in SIRT2 IF was not statistically significant between the control group (CG) and the UG. The translocation of both SIRT1 and SIRT6 IF from the nucleus to the cytoplasm of keratinocytes was observed in the upper epidermis of the UG, whereas SIRT2 IF was localized in the cytoplasm of keratinocytes in the epidermis in both the CG and the UG. The translocation of SIRT1 and SIRT6 IF from the nucleus to the cytoplasm of keratinocytes may account for the physiologically protective action of keratinocytes against UVB irradiation. However, the exact role of SIRT1 and SIRT6 translocation in keratinocytes, where SIRT1 and SIRT6 shuttle from the nucleus to the cytoplasm, is not well known. Therefore, further studies are needed to understand the molecular mechanisms of SIRT1 and SIRT6 translocation in keratinocytes upon UVB irradiation.

RESUMEN: La piel, situada en la parte más externa del cuerpo, está siempre expuesta a estímulos externos como la luz solar. Se sabe que la exposición de la piel a la radiación ultravioleta B (UVB) de la luz solar es un factor ambiental importante en la inducción del fotoenvejecimiento. Después de la exposición a los rayos UVB, un aumento en las especies reactivas de oxígeno puede afectar la expresión y la actividad de muchas proteínas críticas según la duración y la dosis de la radiación UVB. Las sirtuinas de mamíferos (SIRT), que son proteínas desacetilasas dependientes de dinucleótidos de nicotinamida, son bien conocidas por desempeñar un papel en la longevidad celular. Sin embargo, se sabe poco sobre las alteraciones de la proteína SIRT en los queratinocitos tras la irradiación UVB según los subtipos de SIRT. Por lo tanto, en este estudio, se investigó la distribución de las proteínas SIRT1, SIRT2 y SIRT6 no mitocondriales mediante tinción de inmunofluorescencia (IF) de la piel de ratones SKH-1 (n = 12), después de la irradiación con UVB durante 10 semanas. Posterior a la irradiación, el IF de SIRT1 y SIRT6 aumentaron significativamente en el grupo de ratones irradiados con UVB (UG), pero la diferencia en SIRT2 IF no fue estadísticamente significativa entre el grupo control (CG) y el UG. La translocación de SIRT1 y SIRT6 IF desde el núcleo al citoplasma de los queratinocitos se observó en la epidermis superior de la UG, mientras que SIRT2 IF se localizó en el citoplasma de los queratinocitos en la epidermis, tanto en el GC, como en la UG. La translocación de SIRT1 y SIRT6 IF del núcleo al citoplasma de los queratinocitos puede explicar la acción protectora fisiológica de estos contra la radiación UVB. Sin embargo, el papel exacto de la translocación de SIRT1 y SIRT6 en los queratinocitos, donde SIRT1 y SIRT6 se trasladan desde el núcleo al citoplasma, no se conoce bien. Por lo tanto, se necesitan más estudios para comprender los mecanismos moleculares de la translocación SIRT1 y SIRT6 en los queratinocitos tras la irradiación UVB.

Abstract Background: The genetic polymorphisms of the alpha-2A adrenergic receptor (ADRA2A), which plays a significant role in sedation, anxiety relief, and antinociception, particularly in dexmedetomidine, may differ in the degree of sedation. This study aimed to investigate the effect of the genetic polymorphisms of ADRA2A (rs11195418, rs1800544, rs2484516, rs1800545, rs553668, rs3750625) on the sedative effects of dexmedetomidine. Methods: A total of 131 patients aged 50 years or more from May 2018 to August 2019 were included in this study. The ADRA2A gene variants were evaluated using the TaqMan Assay. Dexmedetomidine diluted in normal saline to a concentration of 4 µg.mL-1 was infused at a dose of 2 µg.kg-1 to achieve procedural sedation (modified Ramsay sedation scale 4 [mRSS 4]). Results: A total of 131 patients were evaluated. The genetic polymorphisms (rs11195418) of the ADRA2A receptor gene demonstrated no variation in our participants. The ADRA2A receptor gene polymorphisms (rs1800544, rs2484516, rs1800545, rs553668, and rs3750625) exhibited no differences in total dexmedetomidine doses (p > 0.217), bispectral index at mRSS 4 (p > 0.620), and time to obtain mRSS 4 (p > 0.349). Conclusion: This study suggested that the genetic polymorphisms of ADRA2A did not affect the sedative efficacy of dexmedetomidine.

Abstract In today's society, hair is not only used to protect the body and maintain body temperature, but to play an aesthetic role. Therefore, interest in natural products that can improve hair loss is increasing. In this study, the hair loss improvement effect of a mixture of Chrysanthemum zawadskii, peppermint and Glycyrrhiza glabra (FHH-CZ) was investigated in Human follicle dermal papilla cell (HFDPC) and C57BL/6 mice. ELISA, Western blot, RT-PCR and animal experiments were performed. The results showed that FHH-CZ suppressed the expression of 5α-reductase type 2 and androgen receptor in testosterone-treated HFDPC. In addition, pretreatment with FHH-CZ reduced the Bax/Bcl2 expression ratio through inhibition of Dkk-1 expression in testosterone-treated HFDPC. In animal experiments, FHH-CZ promoted hair growth and increased the number of hair roots in C57BL/6 mice. Therefore, the results of this study suggested that FHH-CZ could be used as a natural material with few side effects to improve hair loss.

SUMMARY: The aim of this study was to clarify the diverse spinal compositions of the branches of the lumbar plexus in terms of their prevalence rates and thicknesses. Thirty lumbar plexuses extracted from Korean adults were used in this study. The nerve fascicles were separated and traced with the aid of a surgical microscope. The thickness of each spinal nerve component was calculated based on the mean of the largest and smallest diameters using digital calipers under the surgical microscope. The most common patterns of the spinal composition of the branches of the lumbar plexus were as follows: The iliohypogastric nerve (IHN) and the ilioinguinal nerve (IIN) arose from the ventral ramus of the first lumbar nerve (L1), the genitofemoral nerve (GFN) arose from the anterior division of the ventral ramus of the second lumbar nerve (L2), and the lateral femoral cutaneous nerve (LFCN) arose from the posterior division of the ventral ramus of theL2, the femoral nerve (FN) arose from the posterior division of the ventral ramus of L2-the fourth lumbar nerve (L4), with the thickest spinal component derived from the third lumbar nerve (L3), and the obturator nerve (OBN) arose from the anterior division of the ventral ramus of L2-L4, with the thickest spinal component derived from L3. However, when L5 constituted the FN and OBN, the thickest spinal components of the FN and OBN was L4. This morphometric study has measured the thicknesses of diverse spinal components that constitute the branches of the lumbar plexus after separating the nerve fascicles. The thicknesses of the various spinal components of these branches can be compared in order to understand which make the main and minor contributions to the lower limb.

RESUMEN: El objetivo de este estudio fue evaluar las diversas composiciones espinales de los ramos del plexo lumbar en cuanto a sus tasas de prevalencia y grosor. Se utilizaron treinta plexos lumbares extraídos de individuos adultos coreanos. Se separaron y trazaron los fascículos nerviosos por medio de un microscopio quirúrgico. El grosor de cada componente del nervio espinal se calculó con base en la media de los diámetros mayor y menor utilizando calibradores digitales bajo el microscopio. Los patrones más comunes de la composición espinal de los ramos del plexo lumbar fueron los siguientes: el nervio iliohipogástrico (NIH) y el nervio ilioinguinal (NII) surgieron del ramo ventral del primer nervio lumbar (L1). El nervio genitofemoral (NGF) surgió de la división anterior del ramo ventral del segundo nervio lumbar (L2). El nervio cutáneo femoral lateral (NCFM) surgió de la división posterior del ramo ventral L2. El nervio femoral (NF) surgió de la división posterior del ramo ventral de L2. El cuarto nervio lumbar (L4), con el componente espinal más grueso derivado del tercer nervio lumbar (L3) y el nervio obturador (NOB) surgieron de la división anterior del ramo ventral de L2-L4, con el componente espinal más grueso derivado de L3. Sin embargo, cuando L5 constituía el NF y NOB, los componentes espinales más gruesos del NF y NOB eran de L4. Este estudio morfométrico analizó los espesores de diversos componentes espinales que constituyen las ramas del plexo lumbar después de separar los fascículos nerviosos. Es posible comparar los espesores de los diversos componentes espinales de estos ramos para comprender las contribuciones principales y menores al miembro inferior.

Abstract Background and objective Advances in surgical technique, postoperative management, and immunosuppressive therapy have led to a steady increase in the number of patients undergoing organ transplantation. This study aimed to compare the incidence of postoperative complications between young and elderly patients undergoing liver transplantation (LT) at a single university hospital. Method The medical records of 253 patients who underwent LT between January 2010 and July 2017 were retrospectively reviewed. The patients were divided into two groups: those younger than 65 years (group Y, n = 231) and those older than 65 years (group O, n = 22). Data on patient demographics, perioperative management, and postoperative complications were collected. Results The patients' baseline characteristics, including underlying diseases and the Model for End-Stage Liver Disease scores, were not different between groups. Preoperative laboratory findings were not significantly different between the two groups, except for hemoglobin level. The total amounts of infused fluid and packed red blood cells were higher in group O than in group Y. The postoperative plasma creatinine level was higher in group O than in group Y; however, the incidence of postoperative complications was not considerably different between the two groups. In addition, there was no difference in the survival rate after LT depending on age. Conclusion With the development of medical technology, LT in elderly patients is not an operation to be avoided, and the prognosis is expected to improve. Therefore, continuous efforts to understand the disease characteristics and physical differences in elderly patients who require LT are essential.

SUMMARY: The term “circling mouse” refers to an animal model of deafness, in which the mouse exhibits circling, head tossing, and hyperactivity, with pathological features including degenerated spiral ganglion cells in the cochlea, and the loss of the organ of Corti. The cochlear nuclear (CN) complex, a part of the auditory brain circuit, is essential to process both ascending and descending auditory information. Considering calcium’s (Ca2+) importance in homeostasis of numerous biological processes, hearing loss by cochlear damage, either by ablation or genetic defect, could cause changes in the Ca2+ concentration that might trigger functional and structural alterations in the auditory circuit. However, little is known about the correlation of the central nervous system (CNS) pathology in circling mice, especially of the auditory pathway circuit and Ca2+ changes. This present study investigates the distribution of Ca2+- binding proteins (CaBPs), calbindin D-28k (CB), parvalbumin (PV), and calretinin (CR) by using a free floating immunohistochemical method inthe CN of the wild-type mouse (+/+), the heterozygous mouse (+/cir), and the homozygous (cir/cir) mouse. CaBPs are well known to be an important factor that regulates Ca2+ concentrations. Compared with the dorsal and ventral cochlear nuclei of +/+ and +/ cirmice, prominent decreases of CaBPs’ immunoreactivity (IR) in cir/cirmice were observed in the somas, as well as in the neuropil. The present study reportson the overall distribution and changes in the immunoreactivity of CaBPs in the CN of cir/cirmice because ofa hearing defect. This data might be helpful to morphologically elucidate CNS disorders and their relation to CaBPs immunoreactivity related to hearing defects.

RESUMEN: El término “ratón circulante” se refiere a un modelo animal con sordera, en el que el ratón exhibe hiperactividad, movimientos circulares y movimientos de la cabeza, con características patológicas que incluyen células ganglionares espirales degeneradas en la cóclea, un canal de Rosenthal vacío y la pérdida del órgano de Corti. El complejo nuclear coclear (CN), una parte del circuito cerebral auditivo, es esencial para procesar la información auditiva tanto ascendente como descendente. Considerando la importancia del calcio (Ca2+) en la homeostasis de numerosos procesos biológicos, la hipoacusia por daño coclear, por ablación o por defecto genético, podría provocar cambios en la concentración de Ca2+que pueden desencadenar alteraciones funcionales y estructurales en el circuitoauditivo. Sin embargo, existe poca información de la correlación de la patología del sistema nervioso central (SNC) en ratones circulantes, especialmente del circuito de la víaauditiva y los cambios de Ca2+. Este estudio nvestiga la distribución de proteínas de unión a Ca2+ (CaBP), calbindina D-28k (CB), parvalbúmina (PV) y calretinina (CR) mediante el uso de un método inmunohistoquímico de flotaciónlibre en el CN del ratón de tiposalvaje (+/+), el ratón heterocigoto (+/cir) y el ratón homocigoto (cir/cir). Se sabe que los CaBP son un factor importante que regula las concentraciones de Ca2+. En comparación con los núcleos cocleares dorsal y ventral de los ratones +/+ y +/ cir, se observaron disminuciones prominentes de la inmunorreactividad (IR) de CaBPs en los ratonescir/cir en los somas, asícomo en el neuropilo. El presente estudio informa sobre la distribución general y los cambios en la inmunorreactividad de CaBP en el CN de ratones cir/cir debido a un defecto auditivo. Estos datos podrían ser útiles para dilucidar morfológicamente los trastornos del SNC y su relación con la inmunorreactividad de CaBP relacionada con los defectosauditivos.

This study aimed to investigate the clinical characteristics, prognosis, and factors for survival of patients who underwent early-start peritoneal dialysis (PD) within 24 h after catheter insertion three years after PD. This study was conducted from January 1, 2013 to December 31, 2017. All adult patients who were diagnosed with end-stage renal disease (ESRD) and underwent PD for the first time within 24 h after catheter insertion in our hospital were included. All patients with PD were followed-up until they withdrew from PD, switching to hemodialysis, were transferred to other medical centers, underwent renal transplantation, died or were lost to follow-up, or continued to undergo dialysis until the end of the study period. The follow-up observation lasted three years. The number of eligible patients was 110, and switching to hemodialysis and death were the main reasons for patients to withdraw from PD. The 1-, 2-, and 3-year technical survival rates of patients were 89.1, 79.1, and 79.1% respectively, while the 1-, 2- and 3-year survival rates were 90, 81.8, and 81.8%, respectively. The Charlson comorbidity index, age, hemoglobin, serum albumin, diabetic nephropathy, chronic glomerulonephritis, and hypertensive renal damage were independent risk factors that affected the prognosis of PD patients. Under the condition of ensuring the quality of the PD catheter insertion, early-start PD within 24 h after catheter insertion is a safe treatment approach for ESRD patients.