The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Mika Kigawa - One of the best experts on this subject based on the ideXlab platform.
-
antibiotic therapy increases the risk of preterm birth in preterm labor without intra amniotic microbes but may prolong the Gestation Period in preterm labor with microbes evaluated by rapid and high sensitive pcr system
American Journal of Reproductive Immunology, 2016Co-Authors: Satoshi Yoneda, Arihiro Shiozaki, Noriko Yoneda, Mika Ito, Tomoko Shima, Kaori Fukuda, Tomohiro Ueno, Hideki Niimi, Isao Kitajima, Mika KigawaAbstract:Objectives To examine the efficacy of the use of antibiotics in preterm labor (PTL) with intact membranes, after evaluating intra-amniotic microbes by our rapid and bacteria-free polymerase chain reaction (PCR) system. Materials and methods One hundred and four PTL patients before 32 weeks of Gestation were recruited. Until 2012, antibiotics were empirically prescribed based on the clinical severity of PTL. Intra-amniotic microbes in stored samples were evaluated later by our newly established PCR system, and the efficacy of the use of antibiotics in PTL was evaluated. Results In the amniotic fluid (AF) microbe-negative patients (n = 67), antibiotic therapy significantly shortened the Gestation Period (P < 0.0001), whereas in the microbe-positive patients (n = 37), appropriate antibiotic therapy (proper antibiotic selection against identified AF microbes) was significantly associated with an increase in Gestation Period (P < 0.0001). Conclusion Appropriate antibiotic therapy in PTL with intact membranes prolonged the Gestation Period.
Qiang Chen - One of the best experts on this subject based on the ideXlab platform.
-
effects of Gestation temperature on offspring sex and maternal reproduction in a viviparous lizard eremias multiocellata living at high altitude
Journal of Thermal Biology, 2012Co-Authors: Xiaolong Tang, Dejiu Zhang, Cui Wang, Qiang ChenAbstract:Abstract Temperature-dependent sex determination (TSD) is well studied in many species of reptiles, but little is known on how geographic distribution and altitude affect the sex ratio. In the present study, we focused on a population of a viviparous lizard with TSD ( Eremias multiocellata ) that lives at high altitudes (≈2900 m) in Tianzhu, Gansu province, China. Gestation temperature had a notable effect on the offspring sex ratio, Gestation Period, and the mother's body mass. The mothers produced female biased offspring at 25 °C but male biased offspring at 35 °C. All female lizards lost weight during pregnancy, and the least loss of the body mass was observed at 31 °C. The Gestation Period increased in a non-linear fashion as ambient temperature was reduced. Average litter size was elevated with an increase of Gestation temperatures, reached a maximum at 31 °C, and then declined at 35 °C. Compared with a previous study on a Minqin population which lives at a lower altitude (≈1400 m) and warmer climate, the present study obtained a less skewed sex ratio of offspring in the Tianzhu population. Geographic variations also affected offspring morphology between the two populations; females collected from Tianzhu produced larger litters but with a smaller body weight of offspring. These differences may be caused by the adaptive response to the cool climatic and high-altitude environmental conditions.
-
influence of ambient temperature on maternal thermoregulation and neonate phenotypes in a viviparous lizard eremias multiocellata during the Gestation Period
Journal of Thermal Biology, 2011Co-Authors: Xiaolong Tang, Dejiu Zhang, Cui Wang, Qiang ChenAbstract:To assess the potential Gestational effects on post-hatching morphology, locomotor performance, and early growth rate, we maintained gravid Eremias multiocellata under four constant treatment temperatures (25, 29, 31, and 35 degrees C). Ambient temperature had significant effects on some morphometric traits cif offspring, including tail length, head size, forelimb length and hindlimb length, but not on body mass or snout-vent length. The data of females' body temperature indirectly support the maternal manipulation hypothesis. Juvenile E. multiocellata had better locomotor performance and faster early growth rate at 29 degrees C than at the other three treatment temperatures (25, 31, and 35 degrees C). Our results suggest that Gestation temperature may be optimized at 29 degrees C for E. multiocellata from Tianzhu, Gansu Province, China. (C) 2011 Elsevier Ltd. All rights reserved.
Satoshi Yoneda - One of the best experts on this subject based on the ideXlab platform.
-
antibiotic therapy increases the risk of preterm birth in preterm labor without intra amniotic microbes but may prolong the Gestation Period in preterm labor with microbes evaluated by rapid and high sensitive pcr system
American Journal of Reproductive Immunology, 2016Co-Authors: Satoshi Yoneda, Arihiro Shiozaki, Noriko Yoneda, Mika Ito, Tomoko Shima, Kaori Fukuda, Tomohiro Ueno, Hideki Niimi, Isao Kitajima, Mika KigawaAbstract:Objectives To examine the efficacy of the use of antibiotics in preterm labor (PTL) with intact membranes, after evaluating intra-amniotic microbes by our rapid and bacteria-free polymerase chain reaction (PCR) system. Materials and methods One hundred and four PTL patients before 32 weeks of Gestation were recruited. Until 2012, antibiotics were empirically prescribed based on the clinical severity of PTL. Intra-amniotic microbes in stored samples were evaluated later by our newly established PCR system, and the efficacy of the use of antibiotics in PTL was evaluated. Results In the amniotic fluid (AF) microbe-negative patients (n = 67), antibiotic therapy significantly shortened the Gestation Period (P < 0.0001), whereas in the microbe-positive patients (n = 37), appropriate antibiotic therapy (proper antibiotic selection against identified AF microbes) was significantly associated with an increase in Gestation Period (P < 0.0001). Conclusion Appropriate antibiotic therapy in PTL with intact membranes prolonged the Gestation Period.
Xiaolong Tang - One of the best experts on this subject based on the ideXlab platform.
-
effects of Gestation temperature on offspring sex and maternal reproduction in a viviparous lizard eremias multiocellata living at high altitude
Journal of Thermal Biology, 2012Co-Authors: Xiaolong Tang, Dejiu Zhang, Cui Wang, Qiang ChenAbstract:Abstract Temperature-dependent sex determination (TSD) is well studied in many species of reptiles, but little is known on how geographic distribution and altitude affect the sex ratio. In the present study, we focused on a population of a viviparous lizard with TSD ( Eremias multiocellata ) that lives at high altitudes (≈2900 m) in Tianzhu, Gansu province, China. Gestation temperature had a notable effect on the offspring sex ratio, Gestation Period, and the mother's body mass. The mothers produced female biased offspring at 25 °C but male biased offspring at 35 °C. All female lizards lost weight during pregnancy, and the least loss of the body mass was observed at 31 °C. The Gestation Period increased in a non-linear fashion as ambient temperature was reduced. Average litter size was elevated with an increase of Gestation temperatures, reached a maximum at 31 °C, and then declined at 35 °C. Compared with a previous study on a Minqin population which lives at a lower altitude (≈1400 m) and warmer climate, the present study obtained a less skewed sex ratio of offspring in the Tianzhu population. Geographic variations also affected offspring morphology between the two populations; females collected from Tianzhu produced larger litters but with a smaller body weight of offspring. These differences may be caused by the adaptive response to the cool climatic and high-altitude environmental conditions.
-
influence of ambient temperature on maternal thermoregulation and neonate phenotypes in a viviparous lizard eremias multiocellata during the Gestation Period
Journal of Thermal Biology, 2011Co-Authors: Xiaolong Tang, Dejiu Zhang, Cui Wang, Qiang ChenAbstract:To assess the potential Gestational effects on post-hatching morphology, locomotor performance, and early growth rate, we maintained gravid Eremias multiocellata under four constant treatment temperatures (25, 29, 31, and 35 degrees C). Ambient temperature had significant effects on some morphometric traits cif offspring, including tail length, head size, forelimb length and hindlimb length, but not on body mass or snout-vent length. The data of females' body temperature indirectly support the maternal manipulation hypothesis. Juvenile E. multiocellata had better locomotor performance and faster early growth rate at 29 degrees C than at the other three treatment temperatures (25, 31, and 35 degrees C). Our results suggest that Gestation temperature may be optimized at 29 degrees C for E. multiocellata from Tianzhu, Gansu Province, China. (C) 2011 Elsevier Ltd. All rights reserved.
Arihiro Shiozaki - One of the best experts on this subject based on the ideXlab platform.
-
antibiotic therapy increases the risk of preterm birth in preterm labor without intra amniotic microbes but may prolong the Gestation Period in preterm labor with microbes evaluated by rapid and high sensitive pcr system
American Journal of Reproductive Immunology, 2016Co-Authors: Satoshi Yoneda, Arihiro Shiozaki, Noriko Yoneda, Mika Ito, Tomoko Shima, Kaori Fukuda, Tomohiro Ueno, Hideki Niimi, Isao Kitajima, Mika KigawaAbstract:Objectives To examine the efficacy of the use of antibiotics in preterm labor (PTL) with intact membranes, after evaluating intra-amniotic microbes by our rapid and bacteria-free polymerase chain reaction (PCR) system. Materials and methods One hundred and four PTL patients before 32 weeks of Gestation were recruited. Until 2012, antibiotics were empirically prescribed based on the clinical severity of PTL. Intra-amniotic microbes in stored samples were evaluated later by our newly established PCR system, and the efficacy of the use of antibiotics in PTL was evaluated. Results In the amniotic fluid (AF) microbe-negative patients (n = 67), antibiotic therapy significantly shortened the Gestation Period (P < 0.0001), whereas in the microbe-positive patients (n = 37), appropriate antibiotic therapy (proper antibiotic selection against identified AF microbes) was significantly associated with an increase in Gestation Period (P < 0.0001). Conclusion Appropriate antibiotic therapy in PTL with intact membranes prolonged the Gestation Period.
