Topical application of cream containing enriched-schizandrin from Schisandra chinensis fruit exert anti-photoaging efficacy in ultraviolet B-irradicated hairless mice.

Excessive ultraviolet (UV) B irradiation induced skin photoaging. The aim of this study was to evaluate the anti-photoaging efficacy of enriched-schizandrin from Schisandra chinensis fruit in UVB-induced hairless mice. The cream containing enriched-schizandrin from S. chinensis fruit manufactured with another cosmetic ingredient. UVB-photoaged hairless mice topically applied with the cream once a day for 5 weeks. Application of the cream showed normal changes of body weight and food efficiency in the UVB-photoaged hairless mice. The cream application also was decreased interleukin (IL)-1ß, matrix metalloproteinase (MMP)-2 and MMP-9 mRNA expressions and then it inhibited MMP-2 protein expression in UVB-photoaged hairless mice. Furthermore, the cream application inhibited epidermal wrinkle formation and decreased wrinkle depth and it restored to wrinkle thickness and collagen degradation of skin in UVB-photoaged hairless mice. Therefore, the cream could recover photoaging generated by UVB irradiation via downregulation of IL-1ß, MMP-2, MMP-9 mRNA expressions and suppression of expression of MMP-2 proteins.

Nurse-led initiation of hepatitis C care in rural Cambodia.

Objective: To determine whether a nurse-led model of care for patients with hepatitis C virus (HCV) infections can provide safe and effective diagnosis and treatment in a resource-poor setting in rural Cambodia. Methods: The nurse-led initiation pilot project was implemented by Médecins Sans Frontières in collaboration with the Cambodian health ministry in two operational districts in Battambang Province between 1 June and 30 September 2020. Nursing staff at 27 rural health centres were trained to identify signs of decompensated liver cirrhosis and to provide HCV treatment. Patients without decompensated cirrhosis or another comorbidity were initiated at health centres onto combined treatment with sofosbuvir, 400 mg/day, and daclatasvir, 60 mg/day, orally for 12 weeks. Treatment adherence and effectiveness were assessed during follow-up. Findings: Of 10 960 individuals screened, 547 had HCV viraemia (i.e. viral load ≥ 1000 IU/mL). Of the 547, 329 were eligible for treatment initiation at health centres through the pilot project. All 329 (100%) completed treatment and 310 (94%; 95% confidence interval: 91-96) achieved a sustained virological response 12 weeks post-treatment. Depending on patient subgroups, this response varied from 89% to 100%. Only two adverse events were recorded; both were determined as unrelated to treatment. Conclusion: The safety and effectiveness of direct-acting antiviral medication has previously been demonstrated. Models of HCV care now need to enable greater access for patients. The nurse-led initiation pilot project provides a model for use in other resource-poor settings to scale up national programmes.

Nutritional evaluation of new alternative types of dog foods including raw and cooked homemadestyle diets

Background@#New alternative types of pet foods such as raw and cooked homemadestyle diets containing human food ingredients have been introduced due to a trend of pet humanization and diversification of consumer needs. @*Objectives@#To evaluate nutritional adequacy of new alternative types of dog foods containing human food ingredients as maintenance diets for dogs. @*Methods@#Eleven homemade-style foods for adult dogs were purchased from online channel in Korea and analyzed to evaluate nutritional adequacy for adult dogs. Nutrients analyzed included crude protein, amino acids, crude fat, fatty acids, and minerals. @*Results@#Crude protein and amino acids in all products satisfied Association of American Feed Control Officials (AAFCO) requirements. Crude fat in one of 11 products did not meet AAFCO requirements. The most deficient minerals were selenium (10 of 11, 90.9%), copper (five of 11, 45.5%), zinc (five of 11, 45.5%), potassium (three of 11, 27.3%), calcium (three of 11, 27.3%), iron (two of 11, 18.2%), and magnesium (one of 11, 9.1%). Six products were not in the range of the recommended Ca:P ratio in AAFCO dog food maintenance nutrient profiles. @*Conclusions@#This study performed nutritional evaluation of raw and cooked homemadestyle foods as maintenance diets for adult dogs. Some nutritional inadequacies were observed including some minerals, Ca:P ratio, and omega-6:omega-3 fatty acid ratio, although three products (26.2%) satisfied the AAFCO standard except selenium. Overall, the data suggest a need for accurate nutritional adequacy statement for consumers based on proper methods to validate the formula.

Industrial-scale aerobic composting of livestock manures with the addition of biochar: Variation of bacterial community and antibiotic resistance genes caused by various composting stages.

The presence of large amounts of antibiotic resistance genes (ARGs) in livestock manures poses an impending, tough safety risk to ecosystems. To investigate more comprehensively the mechanisms of ARGs removal from industrial-scale composting of livestock manure based on biochar addition, we tracked the dynamics of bacterial community and ARGs at various stages of aerobic composting of livestock manures with 10% biochar. There were no significant effects of biochar on the bacterial community and the profiles of ARGs. During aerobic composting, the relative abundance of ARGs and mobile genetic elements (MGEs) showed overall trends of decreasing and then increasing. The key factor driving the dynamics of ARGs was bacterial community composition, and the potential hosts of ARGs were Caldicoprobacter, Tepidimicrobium, Ignatzschineria, Pseudogracilibacillus, Actinomadura, Flavobacterium and Planifilum. The retention of the thermophilic bacteria and the repopulation of the initial bacteria were the dominant reasons for the increase in ARGs at maturation stage. Additionally, among the MGEs, the relative abundance of transposon gene was substantially removed, while the integron genes remained at high relative abundance. Our results highlighted that the suitability of biochar addition to industrial-scale aerobic composting needs to be further explored and that effective measures are needed to prevent the increase of ARGs content on maturation stage.

Correction: Graph convolutional network approach applied to predict hourly bike-sharing demands considering spatial, temporal, and global effects.

[This corrects the article DOI: 10.1371/journal.pone.0220782.].

Posterior Surgery with Selective Anterior Reinforcement and Screw Augmentation for a Delayed Myelopathy from an Osteoporotic Vertebral Compression Fracture / 대한정형외과학회잡지

Purpose@#In delayed myelopathy (DM) from osteoporotic vertebral compression fractures (OVCF), the mechanisms of spinal cord impingement differ according to the stability of the fractured vertebra. This study examined the availability of a posterior surgery comprised of pedicle screw augmentation with polymethylmethacrylate (PMMA) and selective anterior reinforcement (PS-PMMA+SAR) according to the stability. @*Materials and Methods@#This was a retrospective single-center study. The consecutive patients who had a PS-PMMA+SAR for a DM from OVCF and were followed up more than two years were reviewed. Thirty patients were eligible for this study. All patients used fenestrated screws for PMMA augmentation. Anterior reinforcement was selected according to the stability. The unstable type was done by filling the vacuum cleft with bone chips or PMMA, and the stable type was done by vertebral body anterior translation with/without an interbody bone graft. The radiological and functional outcomes were evaluated. @*Results@#There were 20 unstable and 10 stable cases. The regional kyphotic angle was improved significantly from 31.3°±10.8° to 10.4°±8.3° (p<0.001). The anterior vertebral height ratio was improved significantly from 39.4%±17.1% to 86.4%±9.2% (p<0.001). The spinal canal invasion ratio was improved significantly from 39.2%±14.8% to 19.1%±10.8% (p<0.001). The walking ability was improved mostly by two Nurick’s grades (p<0.001). The Oswestry disability index was improved from 72% to 33% (p<0.001). @*Conclusion@#Posterior surgery with PMMA-augmented pedicle screws, and selective anterior reinforcement for DM from OVCF was available to achieve a good functional and radiological outcome.

Variations in antibiotic resistance genes and removal mechanisms induced by C/N ratio of substrate during composting.

For a comprehensive insight into the potential mechanism of the removal of antibiotic resistance genes (ARGs) removal induced by initial substrates during composting, we tracked the dynamics of physicochemical properties, bacterial community composition, fungal community composition, the relative abundance of ARGs and mobile genetic genes (MGEs) during reed straw and cow manure composting with different carbon to nitrogen ratio. The results showed that the successive bacterial communities were mainly characterized by the dynamic balance between Firmicutes and Actinobacteria, while the fungal communities were composed of Ascomycota. During composting, the interactions between bacteria and fungi were mainly negative. After composting, the removal efficiency of ARGs in compost treatment with C/N ≈ 26 (LL) was higher than that in compost treatment with C/N ≈ 35 (HL), while MGEs were completely degraded in HL and enriched by 2.3% in LL. The large reduction in the relative abundance of ARGs was possibly due to a decrease in the potential host bacterial genera, such as Advenella, Tepidimicrobium, Proteiniphilum, Acinetobacter, Pseudomonas, Flavobacteria and Arcbacter. Partial least-squares path modeling (PLS-PM) revealed that the succession of bacterial communities played a more important role than MGEs in ARGs removal, while indirect factors of the fungal communities altered the profile of ARGs by affecting the bacterial communities. Both direct and indirect factors were affected by composting treatments. This study provides insights into the role of fungal communities in affecting ARGs and highlights the role of different composting treatments with different carbon to nitrogen ration on the underlying mechanism of ARGs removal.

Drawing Guideline for JKMS Manuscripts (03): Plots for Categorical Data

The appropriate plot effectively conveys the author's conclusions to the readers. JKMS will provide a series of special articles to show you how to make consistent and excellent plots easier. In this article, we will cover plots with categorical data. We will show what ‘Bubble Plot,’ ‘Matrix Bubble Plot,’ and ‘Matrix Bar Plot’ are and how to make them.

Effects of various root canal sealers on tooth discoloration and internal bleaching / 대한치과재료학회지

There are several causes of tooth discoloration following root canal treatment. In this study, we evaluated the effects of sealers on tooth discoloration and internal bleaching. Twenty-four teeth were divided into 4 groups: control group, AH plus, Endosequece BC, and MTA fillapex group. Root canal filling was performed using each sealer conventionally and non-vital bleaching was performed with sodium perborate. The L, a, and b values were measured using Vita easyshade. Tooth discoloration after root canal treatment occurs irrespective of the type of sealers and may cause discoloration with only gutta-percha cone. The effect of non-vital bleaching following the use of calcium silicate-based sealers such as Endosequece BC and MTA fillapex was higher than that of AH plus. Therefore, it needs careful use of sealers in endodontics and calcium silicate-based sealers have advantages of bleaching in case of discolored tooth.

The difference of detection rate of avian influenza virus in the wild bird surveillance using various methods

Korea is located within the East Asian-Australian flyway of wild migratory birds during the fall and winter seasons. Consequently, the likelihood of introduction of numerous subtypes and pathotypes of the Avian influenza (AI) virus to Korea has been thought to be very high. In the current study, we surveyed wild bird feces for the presence of AI virus that had been introduced to Korea between September 2017 and February 2018. To identify and characterize the AI virus, we employed commonly used methods, namely, virus isolation (VI) via egg inoculation, real-time reverse transcription-polymerase chain reaction (rRT-PCR), conventional RT-PCR (cRT-PCR) and a newly developed next generation sequencing (NGS) approach. In this study, 124 out of 11,145 fresh samples of wild migratory birds tested were rRT-PCR positive; only 52.0% of VI positive samples were determined as positive by rRT-PCR from fecal supernatant. Fifty AI virus specimens were isolated from fresh fecal samples and typed. The cRT-PCR subtyping results mostly coincided with the NGS results, although NGS detected the presence of 11 HA genes and four NA genes that were not detected by cRT-PCR. NGS analysis confirmed that 12% of the identified viruses were mixed-subtypes which were not detected by cRT-PCR. Prevention of the occurrence of AI virus requires a workflow for rapid and accurate virus detection and verification. However, conventional methods of detection have some limitations. Therefore, different methods should be combined for optimal surveillance, and further studies are needed in aspect of the introduction and application of new methods such as NGS.

Bilateral Obstructive Uropathy Caused by Congenital Bladder Diverticulum Presenting as Hypertensive Retinopathy

A congenital bladder diverticulum (CBD) is caused by inherent muscular weakness instead of obstruction of the bladder outlet. The major clinical conditions are recurrent urinary tract infection (UTI) and voiding dysfunction. This report describes a 15-year-old male adolescent who developed sudden visual disturbance resulting from hypertensive retinopathy. The cause of hypertension was bilateral obstructive uropathy caused by enlarged paraureteral bladder diverticula. After the non-functioning right kidney and ureter and the bilateral diverticula were removed, the left ureter was reimplanted in the bladder. Pathologic findings showed chronic pyelonephritis and partial loss of the bladder musculature in the diverticular wall. This observation indicates that dilated CBD can cause latent UTI, ureteral obstruction, hydronephrosis, and secondary hypertension.

Nontuberculous Mycobacteria Infections at a Provincial Reference Hospital, Cambodia.

Prevalence of nontuberculous mycobacteria (NTM) disease is poorly documented in countries with high prevalence of tuberculosis (TB). We describe prevalence, risk factors, and TB program implications for NTM isolates and disease in Cambodia. A prospective cohort of 1,183 patients with presumptive TB underwent epidemiologic, clinical, radiologic, and microbiologic evaluation, including >12-months of follow-up for patients with NTM isolates. Prevalence of NTM isolates was 10.8% and of disease was 0.9%; 217 (18.3%) patients had TB. Of 197 smear-positive patients, 171 (86.8%) had TB confirmed (167 by culture and 4 by Xpert MTB/RIF assay only) and 11 (5.6%) had NTM isolates. HIV infection and past TB were independently associated with having NTM isolates. Improved detection of NTM isolates in Cambodia might require more systematic use of mycobacterial culture and the use of Xpert MTB/RIF to confirm smear-positive TB cases, especially in patients with HIV infection or a history of TB.

Engulfment signals and the phagocytic machinery for apoptotic cell clearance

The clearance of apoptotic cells is an essential process for tissue homeostasis. To this end, cells undergoing apoptosis must display engulfment signals, such as ‘find-me' and ‘eat-me' signals. Engulfment signals are recognized by multiple types of phagocytic machinery in phagocytes, leading to prompt clearance of apoptotic cells. In addition, apoptotic cells and phagocytes release tolerogenic signals to reduce immune responses against apoptotic cell-derived self-antigens. Here we discuss recent advances in our knowledge of engulfment signals, the phagocytic machinery and the signal transduction pathways for apoptotic cell engulfment.

An IgG4-Related Inflammatory Pseudotumor of the Greater Omentum / 대한내과학회지

IgG4-related sclerosing disease is a novel clinical disease entity characterized by an elevated serum IgG4 concentration and tissue infiltration by IgG4-positive plasma cells. Although this disease is a novel entity, it is not rare and is present in a proportion of patients with a wide variety of diseases, including autoimmune pancreatitis, sclerosing cholangitis, retroperitoneal fibrosis, and inflammatory pseudotumor. Despite the effectiveness of steroid therapy, IgG4-related sclerosing disease is often misdiagnosed as a malignant tumor. Here, we report an inflammatory pseudotumor of the great omentum that was misdiagnosed as a malignant tumor and subject to surgical resection.

A Case of Sarcomatoid Carcinoma Arising from Mucinous Cystadenocarcinoma of Appendix

Sarcomatoid carcinoma or carcinosarcoma is a very rare biphasic tumor characterized by a combination of malignant epithelial and mesenchymal cells. The pathogenesis of sarcomatoid carcinoma is not fully elucidated and the guideline of treatment has not been established yet. Although the upper aerodigestive tract, lung and female urogenital system are known to be the most frequently affected, this tumor also can occur in various sites, including the digestive tract. Since sarcomatoid carcinoma in colon was firstly reported in 1986, 24 cases have been reported to date. We report a rare case with sarcomatoid carcinoma of appendix. Interesting histologic feature of our case was the presence of mucinous cystadenocarcinoma with morphological "transition" between carcinomatous and sarcomatous tissue. To our knowledge, this is the first case of sarcomatoid carcinoma arising from mucinous cystadenocarcinoma of the appendix.

The Prognostic Factors that Influence in Near Vision after Accommodative Intraocular Lens Implantation

PURPOSE: To evaluate the prognostic factors to determine the uncorrected near visual acuity of patients who undergone routine cataract surgery and WIOL-CF(R) (Gelmed international, Kamenne Zehrovice, Czech Republic) accommodative intraocular lens implantation. METHODS: This study evaluated 46 eyes of 27 patients who had undergone routine cataract surgery and WIOL-CF(R) accommodative IOL implantation. We checked visual acuities at near and distant before surgery. And we also checked age and gender of patients and manifest refraction, corneal astigmatism and axial length of eyes at that time. We analyzed association between these factors and uncorrected near visual acuity at postoperative 6 and 12 month. RESULTS: Univariate linear regression analyses between uncorrected near visual acuity and preoperative patients characteristics suggested that the age of patients was the only statistically significant independent variable on uncorrected near visual acuity at postoperative 6 (p < 0.001) and 12 (p < 0.001) month. Multiple regression analyses also revealed the same results (p = 0.021 at postoperative 6 month and p = 0.042 at postoperative 12 month). CONCLUSIONS: This study suggest that the age is the one of the most important prognostic factors of postoperative uncorrected near visual acuity after WIOL-CF(R) accommodative intraocular lens implantation.

Therapeutic Effect of a Recombinant betaig-h3 Fragment-RGD Peptide for Chronic Inflammatory Arthritis

OBJECTIVE: betaig-h3 is a 68kDa extracellular matrix protein which is overexpressed in synovial tissues of rheumatoid arthritis (RA). Previous results proved that betaig-h3 fragments are relevant to adhesion and migration of synovial fibroblast and angiogenesis through interaction with alphavbeta 3 integrin. We designed a recombinant betaig-h3 protein consisting of a fas-1 domain and RGD motif and evaluated the therapeutic efficacy in RA. METHODS: Inhibitory effect of adhesion and migration of NIH3T3 cell line was evaluated in 96 well microtiter and transwell plates coated with betaig-h3. Clinical arthritis index was evaluated after treating CIA mice with MFK12. Immunohistochemical staining in synovial tissues were performed. Expression of transcripts and proteins of inflammatory mediators were analyzed by semi-quantitative RT-PCR and immunoblotting. RESULTS: Recombinant protein consisted of 4th fas-1 domain truncated for H1 and H2 sequences and RGD peptide (MFK12), had M.W. of 10.4kDa. betaig-h3 mediated adhesion and migration of NIH3T3 cell line were significantly inhibited in a dose-dependent manner. Arthritis severity and incidence were efficiently reduced when CIA mice were treated with MFK12 at 30 mg/kg/day compared with the control. Immunohistochemical staining of joint tissues in MFK12 treated mice exhibited reduced angiogenesis. In treated mice, expression of transcripts regarding inflammatory mediators was markedly suppressed and immunoblotting of ICAM-1 and RANKL from whole extract of hind paws also showed a significant reduction. CONCLUSION: This study shows that MFK12 is effective in treating RA, although further study is warranted to improve the therapeutic efficacy.

Treatment outcome of nasal natural killer/T-cell lymphoma

PURPOSE: To evaluate the radiotherapy treatment outcome of patients in stage IE and IIE nasal natural killer/T-cell lymphoma. MATERIALS AND METHODS: From August 1999 to August 2009, 46 patients with stage IE and IIE nasal natural killer/T-cell lymphoma were treated by definitive radiotherapy and chemotherapy. 33 patients were treated with chemotherapy followed by radiotherapy (CT + RT) and they received 50.4 Gy in 28 fractions. 13 patients were treated with concurrent chemoradiotherapy (CCRT) and they received 40 Gy in 20 fractions. RESULTS: The median follow-up period was 4.6-137.6 months (median, 50.2 months) for all patients. The 4-year overall survival was 68.6% and 4-year disease free survival (DFS) was 61.9%. The 4-year locoregional recurrence free survival was 65.0%, and 4-year distant metastasis free survival (DMFS) was 66.2%. For patients treated with CT + RT, 15 patients (45.5%) achieved complete response after chemotherapy, and 13 patients (39.4%) achieved partial response. 13 patients (81.8%) achieved complete response after radiotherapy, and 6 patients (18.2%) achieved partial response. For patients treated with CCRT, 11 patients (84.6%) achieved complete response, and one patient (7.7%) achieved partial response. In univariate analysis, presence of cervical lymph node metastasis was only significant prognostic factor for DFS and DMFS. CONCLUSION: This study did not show satisfactory overall survival rate and disease free survival rate of definitive radiotherapy and chemotherapy for stage IE and IIE nasal natural killer/T-cell lymphoma. For patients with cervical lymph node metastasis, further investigation of new chemotherapy regimens is necessary to reduce the distant metastasis.

Application of phage display to discovery of tumor-specific homing peptides: developing strategies for therapy and molecular imaging of cancer.

Selective delivery of drugs or imaging dyes to tumor is the central challenge for improving existing therapy and diagnosis of cancer. Phage display of random peptides has been used to identify homing peptides that are specific to tumor cells or tumor blood vessels. These homing peptides can be conjugated with imaging agents or therapeutic drugs and may be a promising tool for affinity-based targeted delivery of imaging agents and drugs. This chapter describes the procedures for phage display selection of peptides that selectively bind to bladder tumor cells and home to tumor tissues in vivo. It also describes the application of the tumor-specific peptide to the detection of bladder cancer cells in the patient urine.