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Research question Whether SARS-CoV-2 infection has effects on ovarian reserve, sex hormone and menstruation of women of child-bearing age. Design This is a retrospective, cross-sectional study. Clinical and laboratory data from 237 women of child-bearing age diagnosed with COVID-19 were retrospectively reviewed. Menstrual data from 177 patients were analyzed. Blood samples from the early follicular phase were tested for sex hormones and Anti-mullerian hormone (AMH). Results Among 237 patients confirmed with COVID-19, severely ill patients had more comorbidities than mildly ill patients (34% vs 8%), especially for patients with diabetes, hepatic disease and malignant tumors. Among 177 patients with menstrual records, 45 (25%) patients presented with menstrual volume changes, and 50 (28%) patients had menstrual cycle changes, mainly a decreased volume (21%) and a prolonged cycle (19%). The average sex hormone and AMH levels of women of child-bearing age with COVID-19 were not different from those of age-matched controls. Conclusions Average sex hormone levels and ovarian reserve did not change significantly in COVID-19 women of child-bearing age. Nearly one-fifth of patients exhibited a menstrual volume decrease or cycle prolongation. The menstruation changes of these patients might be the consequence of transient sex hormone change cause by suppression of ovarian function that soon resumed after recovery.

. (2015). Edge-hydroxylated boron nitride nanosheets as an effective additive to improve the thermal response of hydrogels. Advanced Materials, 27 (44), 7196-7203.

). Hollow structured Li3VO4 wrapped with graphene nanosheets in situ prepared by one-pot template-free method as an anode for lithium-ion batteries. Nano Letters: a journal dedicated to nanoscience and nanotechnology, 13 (10), 4715-4720. Hollow structured Li3VO4 wrapped with graphene nanosheets in situ prepared by one-pot template-free method as an anode for lithium-ion batteries AbstractTo explore good anode materials of high safety, high reversible capacity, good cycling, and excellent rate capability, a Li3VO4 microbox with wall thickness of 40 nm was prepared by a one-pot and template-free in situ hydrothermal method. In addition, its composite with graphene nanosheets of about six layers of graphene was achieved. Both of them, especially the Li3VO4/graphene nanosheets composite, show superior electrochemical performance to the formerly reported vanadium-based anode materials. The composite shows a reversible capacity of 223 mAh g−1 even at 20C (1C = 400 mAh g−1). After 500 cycles at 10C there is no evident capacity fading. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 2 ABSTRACT: To explore good anode materials of high safety, high