Wireless graphene-based thermal patch for obtaining temperature distribution and performing thermography.

Thermal imaging provides information regarding the general condition of the human body and facilitates the diagnosis of various diseases. Heat therapy or thermotherapy can help in the treatment of injuries to the skin tissue. Here, we report a wearable thermal patch with dual functions of continuous skin temperature sensing and thermotherapy for effective self-care treatment. This system consists of a graphene-based capacitive sensor, a graphene thermal pad, and a flexible readout board with a wireless communication module. The wearable sensor continuously monitors the temperature variation over a large area of the skin (3 × 3cm2) with high resolution and sensitivity and performs thermotherapy via the graphene-based heater mounted at the bottom of the device. Animal studies prove that the proposed system can be used to diagnose various diseases. This technology could be useful in the development of convenient and wearable health care devices.

Extension of Drosophila lifespan by Korean red ginseng through a mechanism dependent on dSir2 and insulin/IGF-1 signaling.

Many studies have indicated that Korean red ginseng (KRG) has anti-inflammatory and anti-oxidative effects, thereby inducing many health benefits in humans. Studies into the longevity effects of KRG are limited and have provided contradictory results, and the molecular mechanism of lifespan extension by KRG is not elucidated yet. Herein, the longevity effect of KRG was investigated in Drosophila melanogaster by feeding KRG extracts, and the molecular mechanism of lifespan extension was elucidated by using longevity-related mutant flies. KRG extended the lifespan of Drosophila when administrated at 10 and 25 µg/mL, and the longevity benefit of KRG was not due to reduced feeding, reproduction, and/or climbing ability in fruit flies, indicating that the longevity benefit of KRG is a direct effect of KRG, not of a secondary artifact. Diet supplementation with KRG increased the lifespan of flies on a full-fed diet but not of those on a restricted diet, and the longevity effect of KRG was diminished by the mutation of dSir2, a deacetylase known to mediate the benefits of dietary restriction. Similarly, the longevity effect of KRG was mediated by the reduction of insulin/IGF-1 signaling. In conclusion, KRG extends the lifespan of Drosophila through Sir2 and insulin/IGF-1 signaling and has potential as an anti-aging dietary-restriction mimetic and prolongevity supplement.

Marmoricola ginsengisoli sp. nov. and Marmoricola pocheonensis sp. nov. isolated from a ginseng-cultivating field.

Two novel actinobacteria, designated strains Gsoil 097T and Gsoil 818T, isolated from soil of a ginseng field, South Korea, were characterized by a polyphasic approach to clarify their taxonomic positions. They were Gram-reaction-positive, aerobic, non-spore-forming and rod-shaped. Phylogenetic analysis based on 16S rRNA gene sequences indicated that both isolates belong to the genus Marmoricola and were related most closely to Marmicola solisilvae KIS18-7T (99.1 and 98.3 % similarity, respectively), Marmicola terrae JOS5-1T (97.9 and 97.9 %), Marmicola scoriae Sco-D01T (97.8 and 97.1 %) and Marmicola aequoreus SST-45T (97.5 and 97.0 %). The G+C content of the genomic DNA was 68.8 and 70.0 mol%, respectively. Both strains were characterized chemotaxonomically as having ll-2,6-diaminopimelic acid in the cell-wall peptidoglycan, MK-8(H4) as the predominant menaquinone and C17 : 1ω6c, C18 : 1ω9c, C18 : 0 10-methyl and iso-C16 : 0 as major fatty acids. These chemotaxonomic data supported the affiliation of both strains to the genus Marmoricola. However, levels of DNA-DNA relatedness between the two strains and closely related type strains of Marmoricola species were less than 30 %. Moreover, the results of physiological and biochemical tests allowed the phenotypic differentiation of strains Gsoil 097T and Gsoil 818T from other Marmoricola species with validly published names. Therefore, the two isolates represent two novel species, for which the names Marmoricola ginsengisoli sp. nov. (type strain Gsoil 097T = KACC 14267T = DSM 22772T) and Marmoricola pocheonensis sp. nov. (type strain Gsoil 818T = KACC 14275T = DSM 22773T) are proposed.

Korean mistletoe (Viscum album coloratum) extract extends the lifespan of nematodes and fruit flies.

Viscum album coloratum (Korean mistletoe) is a semi-parasitic plant that grows on various trees and has a variety of biological functions such as immunomodulation, apoptosis, and anti-tumor activity. In this study, we investigated the effects of Korean mistletoe extract (KME) on lifespan in experimental models using Caenorhabditis elegans and Drosophila melanogaster. Supplementation of KME at 50 µg/ml extended the mean survival time by 9.61 and 19.86 % in worms and flies, respectively. The longevity benefit of KME was not due to reduced feeding, reproduction, and/or locomotion in flies and worms. The supplementation of KME also did not increase resistance to various stresses including heat shock, oxidative, or starvation stresses. Furthermore, KME did not further extend the lifespan of flies fed a dietary restricted diet but did increase the expression of Sir2, one of the target genes of dietary restriction, suggesting that KME may function as a putative dietary restriction mimetic. These results also suggest that the longevity promoting effects of KME may be an example of mild stress-induced hormesis.

Doctor's attire influences perceived empathy in the patient-doctor relationship.

OBJECTIVE: This study investigated whether doctors' attire influences the perception of empathy in the patient-doctor relationship during a therapeutic encounter. METHODS: A total number of 143 patients were divided into four groups when they were consulting a Traditional Korean Medicine doctor. Depending on the group, the same doctor was wearing four different attires--Casual, Suit, Traditional dress, White coat--when having a clinical consultation with the patients. RESULTS: The patients preferred white coat and traditional dress more than other attires, giving highest scores to white coat in competency, trustworthiness and preference of attire and to traditional dress in comfortableness and contentment with the consultation. The "Consultation and Relational Empathy (CARE)" score was significantly higher in the "White coat" and "Traditional" groups, compared to the "Casual" and "Suit" groups. CONCLUSION: The strong association between the patients' preference of doctors' attire and the CARE score indicates that the doctor's attire plays not only an important role for establishing confidence and trustworthiness but also for the perception of empathy in the patient-doctor relationship. PRACTICE IMPLICATIONS: The doctor's attire can function as an effective tool of non-verbal communication in order to signal confidence, trust and empathy and establish a good patient-doctor relationship.

What to wear when practicing oriental medicine: patients' preferences for doctors' attire.

OBJECTIVES: The patient's impression of the doctor is an important factor in a clinical consultation, and the doctor's attire also plays a great role in promoting trust and confidence in the patients. Previous studies have shown that a doctor in a white coat will appear more professional, confident, and trustworthy. The objective of this study was to investigate whether the influence of a doctor's attire applies for both Western and Oriental medical doctors. METHODS: Before a clinical consultation, 153 patients were asked to assess photographs showing an identical doctor wearing four different dress styles. The patients were divided into two groups: One group was told that the doctor in the photograph was a Western doctor, whereas the other group was told that the doctor was an Oriental medical doctor. Patients' ratings of preference for competency, trustworthiness, comfortableness, and treatment choice were then measured and compared. RESULTS: Patients preferred a doctor in a white coat the most, giving highest ratings for competency and trustworthiness, while reporting to feel most comfortable with a doctor in traditional dress. No difference was found between Western and Oriental medical doctors. Patients prefer their doctors to wear white coats, regardless of whether the doctor is a Western or Oriental medical doctor, even though patients feel more comfortable with doctors wearing traditional dress. CONCLUSIONS: The preference about doctors' attire symbolizes the perception of patients regarding their doctor's image. Taking the historical and symbolic meaning of the doctor's white coat together, this clear preference of patients for the white coat might imply that patients require a more scientific and professional image, regardless of whether the doctors are Western or Oriental medical doctors.