Postharvest physiological deterioration (PPD) is a global challenge in the improvement of cassava value chain. However, how to reduce cassava spoilage and reveal the mechanism of injured cassava storage roots in response to PPD were poorly understood. In the present study, we investigated the activities of antioxidant enzymes of cassava injured storage roots in PPD-susceptible (SC9) and PPD-tol...

OBJECTIVE To determine the relationship between the traditional Chinese practice of postpartum care, known as zuoyuezi, and postpartum depression (PPD) in China. METHODS A total of 342 Chinese women were surveyed 6- to 8-weeks post partum using the Edinburgh Postnatal Depression Scale (EPDS) and items assessing sociodemographics, health history, peripartum experiences, zuoyuezi, and social su...

are important factors in the elicitation of contact dermatitis. Our current data show that patients with a history of using temporary black henna tattoos are often highly sensitized to PPD after exposure to such high concentrations and require only very low concentrations of PPD for elicitation of an allergic response. As the current practice of using PPD 1% pet. often results in unacceptably s...

Pigmented purpuric dermatoses (PPD) are a group of disorders which have histopathologically similar but morphologically different appearance. The five main clinical subtypes of PPD has been described. The perivascular lymphocytic infiltration of superficial dermal vessels with extravasations of red blood cells are common histopathological characteristics for all types of PPD. The etiopathogenes...

Many strong and extreme sensitizing chemicals, such as para-phenylenediamine (PPD), toluene-2,5-diamine (TDA) and other aromatic amines or cross-reacting substances, are ingredients in hair dye products. The chemistry of hair dyeing and the immunological reactions to the potent sensitizing hair dye components are complex and have not been fully clarified up until now. Recently 2-methoxymethyl-p...

In this paper, I develop a duopoly location model of differentiated products in which consumers’ product preferences vary positively with product prices. The level of preference price-dependence (“PPD”) is allowed to vary across consumers. I find that equilibrium prices increase with the PPD level of the marginal, or “just indifferent,” consumer, but are not influenced by the PPD levels of othe...

Background Studies on postpartum depression (PPD) in China have focused primarily on women of Han ethnicity, whereas work on other ethnic groups has proven limited. This study explored the ethnic differences of associated social-demographic and obstetric factors for PPD between Han-majority and Kazak-minority women in northwestern China. Methods Han and Kazak women who received routine examin...

Forty-two patients with neoplastic diseases received intravenous administration of PPD (PPD-V), and tumor markers were monitored between January, 1986 and February, 1987. Tumor markers such as CEA, AFP, SCC, CA125, lAP and polyamines decreased significantly following the PPD-V therapy. In some cases, PPD-V therapy also reduced the progression of clinical manifestation of the disease. We could n...

The objective of this study was to develop a self-microemulsifying drug delivery system (SMEDDS) to enhance the oral bioavailability of the poorly water-soluble compound 20(S)-25-methoxydammarane-3β;12β;20-triol (25-OCH3-PPD). Optimized SMEDDS formulations for 25-OCH3-PPD contained Cremophor® EL (50%) as the surfactant, glycerin (20%) as the cosurfactant, and Labrafil® M1944 (30%) as the oil. T...