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The three tropical species Gomphandra luzoniensis, Nothapodytes nimmoniana and Goniothalamus amuyon contain important cancer-fighting drugs; however, little is known about how to propagate these species from seeds. Thus, the aim of this study was to determine the germination requirements of seeds of each of these three species in order to provide an effective protocol to produce plants. Fresh seeds of G. luzoniensis germinated up to 73% at high temperatures in light in 4 weeks, and embryos were underdeveloped. Most seeds had morphological dormancy (MD), but a proportion of them had morphophysiological dormancy (MPD). Fresh seeds of N. nimmoniana germinated up to 50% in light in 4 weeks, embryo length increased by 17% before radicle emergence and ≥ 89% of the seeds had germinated after incubation for 6 weeks in light at high temperatures. Thus, about 50% of the seeds have MD and about 50% MPD. Fresh seeds of G. amuyon incubated at 30°C in light for 4 weeks germinated to 69%, whereas at the other incubation temperatures germination took longer than 4 weeks. Embryo length increased 213% before radicle emergence, and after 8 weeks of incubation at high temperatures ≥ 80% of the seeds had germinated. As in the other two species, the seed population consisted of a mixture of MD and MPD. Incubation of seeds of these three species at high temperatures (e.g. 25, 30 and 30/20°C) for up to 2 months is recommended for germination and thus seedling production.
The association between autoimmune diseases and schizophrenia has rarely
been systematically investigated.
To investigate the association between schizophrenia and a variety of
autoimmune diseases and to explore possible gender variation in any such
Taiwan's National Health Insurance Research Database was used to identify
10 811 hospital in-patients with schizophrenia and 108 110 age-matched
controls. Univariate and multiple logistic regression analyses were
performed, separately, to evaluate the association between autoimmune
diseases and schizophrenia. We applied the false discovery rate to
correct for multiple testing.
When compared with the control group, the in-patients with schizophrenia
had an increased risk of Graves' disease (odds ratio (OR) = 1.32, 95% CI
1.04–1.67), psoriasis (OR = 1.48, 95% CI 1.07–2.04), pernicious anaemia
(OR = 1.71, 95% CI 1.04–2.80), celiac disease (OR = 2.43, 95% CI
1.12–5.27) and hypersensitivity vasculitis (OR = 5.00, 95% CI
1.64–15.26), whereas a reverse association with rheumatoid arthritis (OR
= 0.52, 95% CI 0.35–0.76) was also observed. Gender-specific variation
was found for Sjögren syndrome, hereditary haemolytic anaemia, myasthenia
gravis, polymyalgia rheumatica and dermatomyositis.
Schizophrenia was associated with a greater variety of autoimmune
diseases than was anticipated. Further investigation is needed to gain a
better understanding of the aetiology of schizophrenia and autoimmune
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