4-取代17β-羟基在-7α-甲基-4-雌烯-3-酮的合成和抗生育活性

为了寻找抗生育药物,从17β-羟基-7α-甲基-4-雌烯-3-酮经17β-羟基-7α-甲基-4β,5β-环氧雌烷-3-酮合成了七个4-位取代的目标化合物:4,17β-二羟基-7α-甲基-4-雌烯-3-酮及其17-乙酸酯、4-甲氧基-17β-羟基-7α-甲基-4-雌烯-3-酮及其17-乙酸酯、4-氯-17β-羟基-7α-甲基-4-雌烯-3-酮及其17-乙酸酯和4-溴-17β-羟基-7α-甲基-4-雌烯-3-酮。这些化合物均可竞争性地与人蜕膜孕酮受体结合,并能抑制蜕膜细胞的发育,对大鼠具有显著的抗着床活性。     

Including emergency and acute care as a global health priority

The clinical findings of Takatsubo Cardiomyopathy and acute myocardial infarction can be very similar. While Takatsubo cardiomyopathy rarely leads to severe complications, acute myocardial infarction can be life threatening. Treatment of both these conditions is different and so it is imperative for clinicians to have a high index of suspicion for either. Several EKG differences between the two entities have been proposed. This article summarizes the EKG changes most likely seen in Takatsubo cardiomyopathy and compares them to those seen in Acute Myocardial infarction.     

Mapping of three novel loci for non‐syndromic autosomal recessive mental retardation (NS‐ARMR) in consanguineous families from Pakistan

Rafiq MA, Ansar M, Marshall CR, Noor A, Shaheen N, Mowjoodi A, Khan MA, Ali G, Amin‐ud‐Din M, Feuk L, Vincent JB, Scherer SW. Mapping of three novel loci for non‐syndromic autosomal recessive mental retardation (NS‐ARMR) in consanguineous families from Pakistan. To date, of 13 loci with linkage to non‐syndromic autosomal recessive mental retardation (NS‐ARMR), only six genes have been established with associated mutations. Here we present our study on NS‐ARMR among the Pakistani population, where people are traditionally bound to marry within the family or the wider clan. In an exceptional, far‐reaching genetic survey we have collected more than 50 consanguineous families exhibiting clinical symptoms/phenotypes of NS‐ARMR. In the first step, nine families (MR2‐9 and MR11) with multiple affected individuals were selected for molecular genetic studies. Two families (MR3, MR4) showed linkage to already know NS‐ARMR loci. Fifteen affected and 10 unaffected individuals from six (MR2, MR6, MR7, MR8, MR9 and MR11) families were genotyped by using Affymetrix 5.0 or 6.0 single‐nucleotide polymorphism (SNP) microarrays. SNP microarray data was visually inspected by dChip and genome‐wide homozygosity analysis was performed by HomozygosityMapper. Additional mapping was performed (to exclude false‐positive regions of homozygosity called by HomozygosityMapper and dChip) on all available affected and unaffected members in seven NS‐ARMR families, using microsatellite markers. In this manner we were able to map three novel loci in seven different families originating from different areas of Pakistan. Two families (MR2, MR5) showed linkage on chromosome 2p25.3‐p25.2. Three families (MR7, MR8, and MR9) that have been collected from the same village and belong to the same clan were mapped on chromosome 9q34.3. MR11 maps to a locus on 9p23‐p13.3. Analysis of MR6 showed two positive loci, on chromosome 1q23.2‐q23.3 and 8q24.21‐q24.23. Genotyping in additional family members has so far narrowed, but not excluded the 1q locus. In summary, through this study we have identified three new loci for NS‐ARMR, namely MRT14, 15 and 16.     

Lethal aortic dissection in a 33-week parturient: a case report

Aortic dissection is a rare and potentially lethal complication of pregnancy. After an extensive review of the currently available medical journal databases, a lack of information on aortic dissection in parturients was identified within the US anesthesia literature. A 33-week parturient with chronic hypertension was admitted to an urban medical center with severe epigastric and chest pain. During a 24-hour hospital course, the patient was found to have a Type I (DeBakey) aortic dissection, which proved to be fatal. Because the nurse anesthetist may often be the primary or sole anesthesia provider, it is imperative that he or she become familiar with the signs, symptoms, predisposing factors, and treatment of this potentially lethal complication of pregnancy. It is our desire to expand the body of nurse anesthesia knowledge through review of this tragic case.