The advantages and disadvantages of oxidative permanent and acid-type semi-permanent hair colors are evident. The former provides a longlasting "permanent" color, while the latter imparts less damage to the hair. We developed a novel acid-type hair color technology that can allow an acid dye and a metal ion to form a complex inside the hair similar to the oxidative hair color. It is well known that acid dye diffuses into the hair and creates an ionic bond with the positively charged amino acid residues of hair protein. However, the dye can be extracted easily from the hair by daily shampooing due to the weakness of the bond. In order to strengthen this bond and to prevent the extraction of the dye by shampooing, an aluminum chloride ion was chosen as the metal ion component to form the dye-metal complex. A proper composition of penetration enhancers, benzyl alcohol and ethyl alcohol, was required to allow acid dyes to interact with the aluminum chloride ion after each component penetrates deeply into the hair to form a complex inside the hair. To provide color brightness and a color longevity effect to hair color, glycolic acid was also selected due to the observation that a weak acid with a small molecular weight would enhance those effects.
Abstract Background Pathogenic genetic testing for coronavirus disease 2019 (COVID-19) can detect viruses with high sensitivity; however, there are several challenges. In the prevention, testing, and treatment of COVID-19, more effective, safer, and convenient methods are desired. We evaluated the possibility of monocyte distribution width (MDW) as an infection biomarker in COVID-19 testing. Methods The efficacy of MDW as a screening test for COVID-19 was retrospectively assessed in 80 patients in the COVID-19 group and 232 patients in the non-COVID-19 group (141 patients with acute respiratory infection, 19 patients with nonrespiratory infection, one patient with a viral infection, 11 patients who had received treatment for COVID-19, one patient in contact with COVID-19 patients, and 59 patients with noninfectious disease). Results The median MDW in 80 patients in the COVID-19 group was 23.3 (17.2–33.6), and the median MDW in 232 patients in the non-COVID-19 group was 19.0 (13.6–30.2) ( P < 0.001). When the COVID-19 group was identified using the MDW cut-off value of 21.3 from the non-COVID-19 group, the area under the curve (AUC) was 0.844, and the sensitivity and specificity were 81.3% and 78.2%, respectively. Comparison of MDW by severity between the COVID-19 group and patients with acute respiratory infection in the non-COVID-19 group showed that MDW was significantly higher in the COVID-19 group for all mild, moderate I, and moderate II disease. Conclusions MDW (cut-off value: 21.3) may be used as a screening test for COVID-19 in fever outpatients. Trial registration This study was conducted after being approved by the ethics committee of National Hospital Organization Omuta National Hospital (Approval No. 3-19). This study can be accessed via https://omuta.hosp.go.jp/files/000179721.pdf .
Abstract 1. Dendroarchitectonic analysis of the hypothalamic nuclei in the fowl was investigated by the Golgi‐Cox, Nissl and silver impregnation techniques. 2. All hypothalamic nuclei appeared to consist of leptodendritic neurons constituting a variety within the isodendritic family. They showed triangular, spindle and round shapes and had a few long, relatively straight, fine dendrites bearing very fine dendritic spines. 3. Neurons in the nucleus preopticus medialis et lateralis showed a bipolar spindle‐shape and had stout, relatively long primary dendrites. 4. Those in the nucleus hypothalamicus rostralis medialis et lateralis were characterised by bipolar, spindle‐shaped and multipolar leptodendritic neurons and by short fine primary dendrites bifurcating to fine longer secondary segments. 5. Neurons in the nucleus hypothalamicus caudalis medialis et lateralis and nucleus hypothalamicus inferior were of the multipolar leptodendritic type and had thick, long, unbranching dendrites emerging directly from the cell body. 6. The fowl hypothalamus is dendroarchitectonically divided into preoptic, rostral and caudal hypothalamic regions; the borderlines separating them are the commissura rostralis and the region between the nucleus hypothalamicus rostralis medialis and nucleus hypothalamicus caudalis medialis, respectively.
Observations of neurons in the Golgi-Cox stained diencephalon in chickens revealed that the nucleus rotundus, corpus geniculatum laterale ventrale, nucleus entopeduncularis inferior and nucleus ovoidalis have well-defined boundaries whereas the other cell groups have ill-defined boundaries. Large, round cell bodies of the nucleus rotundus have very fine dendrites running straight in all directions. In contrast, neurons of the corpus geniculatum laterale ventrale have about two thick dendrites which always emerge at their dorsal and ventral poles and course vertically. Neurons of the nucleus entopeduncularis inferior, which shows the most specific pattern in the diencephalon, are mutually entwined and form net-like meshes. Most of the diencephalic neurons show a radiating type, but the hypothalamic neurons seem to be a subtype of this since they typically exhibit fewer and longer dendrites.
