Effects of chelated Zn/Cu/Mn on redox status, immune responses and hoof health in lactating Holstein cows

To evaluate the effects of chelated Zn/Cu/Mn on redox status, immune responses and hoof health in lactating Holstein cows, 48 head in early lactation were divided into healthy or lame groups according to their gait score. Cows were fed the same amount of Zn/Cu/Mn as sulfate salts or in chelated forms for 180 days, and foot-and-mouth disease (FMD) vaccine was injected at day 90. The results showed that lame cows had lower antioxidant function, serum Zn/Mn levels, hair Cu levels, and hoof hardness. Moreover, increased antioxidant status, FMD antibody titers, serum and hair levels of Zn/Cu/Mn, and hoof hardness and decreased milk fat percent and arthritis biomarkers were observed in cows fed chelated Zn/Cu/Mn. In summary, supplementation with chelated Zn/Cu/Mn improved antioxidant status and immune responses, reduced arthritis biomarkers, and increased accumulation of Zn/Cu/Mn in the body and hoof hardness in dairy cows.

Relationship between placental pathology and small-for-gestational age neonates / 中华病理学杂志

<p><b>OBJECTIVE</b>To investigate the relationship between pathological abnormalities of placenta and small-for-gestational-age neonates.</p><p><b>METHODS</b>One hundred placentas of small-for-gestational-age (SGA group) and 200 appropriate-for-gestational-age (AGA group) with single living birth in third trimester were investigated by gross and microscopic examination. The AGA placentas were collected from 2 cases following every SGA placenta. All cases were collected from Shanghai Changning District Maternity and Infant Health Hospital from January 2010 to December 2011.</p><p><b>RESULTS</b>The gestational week, neonatal birth weight, full-term neonatal birth weight, the preterm birth rate and vaginal spontaneous delivery rate were significantly lower in SGA group than that in AGA group (P < 0.002). Full-term placental volume, placental weight and fetal placental weight ratio were lower in SGA group than that in AGA group (P < 0.05). Unusual insertion and torsion of umbilical cord were more common in SGA group (P < 0.05). Syncytial knots increase, avascular villi and villous infarcts were significantly higher in SGA group (P < 0.005), but there were no significant difference between SGA group and AGA group in intervillous thrombi, chronic villitis and chorangiosis (P > 0.05). Gestational hypertension disease and abnormality of fetal monitoring were more common in SGA group (P < 0.05).</p><p><b>CONCLUSIONS</b>Gestational hypertension disease is the main clinical cause of SGA. Some placental abnormality can affect the growth and development of intrauterine fetus.</p>

Invasive ductal carcinomas of breast showing partial reversed cell polarity are associated with lymphatic tumor spread / 中华病理学杂志

<p><b>OBJECTIVE</b>To investigate the relationship between partial reversed cell polarity (PRCP) and lymphatic tumor spread in invasive ductal carcinoma (IDC), not othervise specified (NOS).</p><p><b>METHODS</b>Immunohistochemistry (EnVision method) was used to examine the expression of epithelial membrane antigen (EMA) and the reversed cell polarity in 199 cases of IDC.</p><p><b>RESULTS</b>Of the 199 cases, including five cases with micropapillary differentiation,30 cases with PRCP and 164 cases of IDC-NOS (without micropapillary differentiation and/or PRCP), lymphovascular invasion was seen in four (4/5), 13(43.3%) and 30 cases (18.3%) respectively; nodal metastasis was seen in four (4/5), 19 (63.3%) and 56 cases (34.1%) respectively. The rates of lymphovascular invasion and nodal metastasis were significantly higher in IDC with PRCP or IMPC than IDC-NOS (P = 0.00); there was however no significant difference between IDC with PRCP and IMPC for lymphovascular invasion and nodal metastasis (P = 0.18, P = 0.64).</p><p><b>CONCLUSIONS</b>IDC with PRCP, similar to IMPC, is more likely to show lymphovascular invasion and nodal metastasis. Complete or partial reversal of cell polarity may play a significant role in lymphatic tumor spread.</p>

Effect compound decoction on notoginsenosides in Panax notoginseng / 中国中药杂志

<p><b>OBJECTIVE</b>To explore the effect of compound decoction on notoginsenosides in Panax notoginseng.</p><p><b>METHOD</b>Notoginsenoside R1, Rg1, Re, Rb1 and pH were used as the parameters to investigate the changes on the content of notoginsenosides in different compound extractions by heating for two hours and their correlation with pH.</p><p><b>RESULT</b>When the pH values of solution of P. notoginseng with Fructus ligustri, P. notoginseng with Eupolyphaga seu steleophaga, P. notoginseng with Pheretima asiatica, and Zhitangjiang Fang (free of Hirudo) were rept higher than 5.7, the reserved rate (RR) of notoginsenside were higher than 90%; When the pH values of decoetion of P. notoginseng with Salvia miltiorrhiza, P. notoginseng with Paeonia lactiflora, P. notoginseng with Platycodon grandiflorum, P. notoginseng with Arctium lappa were kept 4.5-5.5, their RR of notoginsenside were 60% - 85%; When the pH values of the decotction of P. notoginseng with Hirudo nipponica was decreased to 3.4, its RR of of notoginsenside was 38.4%; When the pH values of Zhitangjiang Fang extraction was regulated by 0.1% NaOH solution to pH 6. 3, and the RR of notoginsenside increased to 97%.</p><p><b>CONCLUSION</b>The pH of other Chinese herbal medicines extraction with P. notoginseng compound is a critical effect on the stability and yields of notoginsensides.</p>